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PeterNL
n00b
n00b


Joined: 20 Feb 2018
Posts: 10

PostPosted: Tue Mar 20, 2018 3:20 pm    Post subject: Custom grub multiboot installation. Reply with quote

Hello,

I have a couple of questions and a specific situation concerning uefi(nvram on motherboard) efi-file(i.e /EFI/BOOT/BOOTx64.EFI) and grub that i would like to understand.


The questions:

question #1

What is the actual boot sequence?

A. The efivars on the uefi-motherboard(nvram) are set to know which partition on which harddrive to boot.
With for example the command:


Code:
 efibootmgr -c -d /dev/nvme0n1 -p 1 -L "Linux Mint Work (Samsung 850)" -l "\EFI\Boot\bootx64.efi" 



This is only possible with the efi-file on a fat32 partition or other suited simple partitioning.

B. The efi file starts up the OS. If on the OS grub is installed, you get the grub menu. Is this correct?

C. From the grub menu other OS's are bootable as well.

D. The final OS boots. Boot sequance complete.

I think it's just: ABCD ?

question #2

On internet I only read about copying EFI files (/EFI/BOOT/BOOTx64.EFI).
How can i create them?

What if I want to point to another OS with and EFI file?
How is the file itself generated? How does it work? Why are there different kinds of *.EFI files?
Ubuntu Windows and other distro's have different files.
Are they configurable?
I had a efi file on one drive that booted a grub menu on another drive. How?

question #3


Can i have a seperated fat32 partition with one efi file and grub? So that i can manage the complete boot proces from this partition?
I think so as it happens with a bootable usb?
I do not want the automatic Ubuntu, mint, or RHEL installer anymore.
I want one reusable and configurable boot partition, with only manual changes.
6So if i would like to install one of these distros i can ignore the default "install next to .." part.
I use and re-configure my own boot partition, overriding the default "install next to.." part.




The specific situation I want.

I have a workstation suitable for compiling. The uefi only points at the main boot partition
On this machine are 3 permanent drives and one just to (cross-)compile gentoo on, the swapable drive.
This swapable drive must be bootable and (boot)ready to fit into another computer.

So there is one permanent boot partition on the workstation with which i can boot any partition also on the swapable drive if connected.
And there is one temporarily boot partition on the swappable drive that only boots the OS on that drive.
My uefi does not have to point here as i can boot this partition if not cross-compiled from my permanent boot partition if i added this entry in it's grub.


DRIVE A /dev/sda "linux work"
partitions

#1 fat32 "the complete boot partition",uefi only points at this.
/boot/efi/*.EFI
/boot/grub/
/etc/default/grub <- grubs conf files are in here? What more do i need to run grub??

#2 ext4
/ <--root


DRIVE B /dev/sdb "windows 10"
partitions

#1 ntfs

DRIVE C /dev/sdc "linux play"
partitions

#1 ext4
/ <--root

DRIVE D /dev/sdd "the swapable drive" (cross-)compiled gentoo
partitions

#1 fat32 "also a complete boot partition, not used from workstation"
#2 ext4
/ <--root

The recepy to achieve and maintain the boot goals,above question #3.


** 1 the efivars on mobo
Add the permanent partition to uefivars:


Code:
 efibootmgr -c -d /dev/sda -p 1 -L "Linux Mint Work (Samsung 850)" -l "\EFI\Boot\bootx64.efi" 





** 2 creating the fat32 boot partition (if not existing)

Does it have to be at the beginning of a drive? It's not mbr?

parted command or with Gparted.

** 3 removing existing automatic installed grub (if existing)


remove partition or grub files.

** 4 installing moving efi files


mount the partition

Code:
mount /mnt/sda /dev/sda


move the files.

Code:
cp .. ..



unmount the partition

Code:
umount /mnt/sda




** 5 install grub
chroot into the drive:
Code:

chroot /dev/sda1 /usr/sbin/grub-install




the grub installation command?

Code:
grub-install


Does this install all the reguired files for grub i.e. /etc/default/grub ?

In this example, other resources are mounted. I did see no connection with grub:
example adress
https://sites.google.com/site/easylinuxtipsproject/6
example resources


Code:
for i in /dev /dev/pts /proc /sys; do sudo mount -B $i /mnt$i;


/dev/pts ?
/proc ?

** auto configure grub or see configure grub
Code:

apt-get install --reinstall grub-efi-amd64





** manual configure grub
Code:

vim /etc/default/grub





** Done!


exit chroot

Code:
exit





I have tried to achieve this already,spending lots of time with rebooting.
I would like to have this sorted and understood before i realy dive into Gentoo.
So I would be really glad if this is sorted. Also for reusability in the future. Some guidance requested. How do Gentoo veterans do this?
I kinda got stuck inside the theorem, see references.
I'm missing the paractical key i think.


Some help or corrections on my boot recepy are verry welcome.
Hopefully i can eventually make a bash script. So I can easily make proper multibooted installations in the future.
Then i know i know and can apply it automatically.


The been reading and trying quite a lot.
For a reference:
[url]
http://www.rodsbooks.com/efi-bootloaders/index.html [/url]
[url]https://www.happyassasins.net/2014/01/25/uefi-boot-how-does-that-actually-work-then/ [/url]
http://www.rodsbooks.com/efi-bootloaders/installation.html#alternative-naming


https://wiki.gentoo.org/wiki/Efibootmgr#Creating_a_boot_entry
https://wiki.gentoo.org/wiki/EFI_stub_kernel
https://wiki.archlinux.org/index.php/Systemd-boot
https://www.happyassassin.net/2014/01/25/uefi-boot-how-does-that-actually-work-then/
https://www.eightforums.com/tutorials/15458-uefi-bootable-usb-flash-drive-create-windows.html
https://superuser.com/questions/1008125/when-uefi-motherboard-firmware-is-set-to-uefinot-legacy-usb-is-not-detecte
https://en.wikipedia.org/wiki/EFI_system_partition

making partitions and resizing existing fat32 partitions.
https://www.howtogeek.com/114503/how-to-resize-your-ubuntu-partitions/
more grub

https://www.ibm.com/developerworks/library/l-GRUB2-features/index.html
https://www.ibm.com/developerworks/library/l-GRUB2-features/index.html
http://www.rodsbooks.com/efi-bootloaders/installation.html#register
http://www.rodsbooks.com/efi-bootloaders/refind.html
http://www.rodsbooks.com/efi-bootloaders/index.html
https://en.wikipedia.org/wiki/GUID_Partition_Table
http://www.rodsbooks.com/
https://help.ubuntu.com/community/PartitioningSchemes#Partitioning_Scheme_for_Multiple_systems

all the files i need for grub?
https://help.ubuntu.com/community/Grub2/Setup#File_Structure


I can't wait (really) starting with Gentoo!

Thanks a lot,
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DONAHUE
Watchman
Watchman


Joined: 09 Dec 2006
Posts: 7553
Location: Goose Creek SC

PostPosted: Tue Mar 20, 2018 11:57 pm    Post subject: Reply with quote

Have you tried rEFInd? Put it on a flash drive in about 10 minutes and see what minimum work maximum flexibility looks like. If you have a spare usb flash drive that contains nothing of value, suggest download a rEFInd flash drive image from http://sourceforge.net/projects/refind/files/0.11.2/refind-flashdrive-0.11.2.zip/download, unzip it, cd to the unzip directory (contains file refind-flashdrive-0.11.2.img), run fdisk -l noting what disks are listed, let's assume /dev/sda and /dev/sdb, install the spare usb flash drive, run fdisk -l again, this second list should list a new disk, let's assume /dev/sdc, assuming /dev/sdc is correct, run
Code:
dd if=refind-flashdrive-0.11.2.img of=/dev/sdf bs=4MB

dd can be destructive be sure of= is pointing to the correct "spare" usb. You can then reboot using F2 or delete to enter the UEFI to select the spare USB in UEFI mode as first boot choice.
_________________
Defund the FCC.
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PeterNL
n00b
n00b


Joined: 20 Feb 2018
Posts: 10

PostPosted: Thu Mar 22, 2018 3:18 pm    Post subject: Reply with quote

Thank you DONAHUE,

I considered rEFInd and looked for more information about it.

But I do like to finish what i've started.
I tried to install grub on my fat32 partition. sda as the main boot partition.

sda= nvme0on1
fat32 partition on sda= nvme0n1p1

I tried:

Code:

sudo grub-install /dev/sda
Installing for x86_64-efi platform
Installation finished.No error reported

So this should work?

And in uefi selected the drive.
Then rebooted and got a grub shell. Not the menu

Resetting uefi to linux-work. after grub-menu started. Something broken and unable to boot linux-work.
Broken unalocated

no such device ...
invalid sector size ...
alloc magic isbroken at ...
Aborted...

Trying the linux play entry in grub2 booted now my linux-work..


Then i tried:

Code:

sudo grub-install /dev/sda

# or for efi i should have {
sudo grub-install --target=x86_64-efi --efi-directory=/mnt/nvme0n1p1/boot
#}
Installing for x86_64-efi platform
Installation finished.No error reported


mount

Code:

sudo mount /dev/nvme0n1p1 /mnt/nvme0n1p1


grub config.
Code:

su
mkdir /mnt/nvme0n1p1/EFI/Boot/grub/
exit



Code:

grub-mkconfig -o  /mnt/nvme0n1p1/EFI/Boot/grub/grub.cfg
Generating grub configuration file..
Found linux image: /boot/vmlinuz
Found initrd image: /boot/initrd.img
Found Windows Boot Manager
Found LInux Mint
Found Windows Boot MAnager
Adding boot menu entry for EFI firmware configuration
done

According to

https://wiki.archlinux.org/index.php/GRUB

This should already be it.


IN uefi selected the drive known as nvme0n1p1 (sumsung 960)
Grub commandline. NOt grub menu..

But if i select Ubuntu (samsung 960 evo) in uefi
I get a grub menu.
This grub menu is different then what i used to have.
My originat linux work does not boot.
But selecting my linux play boots now linux work...

How to verify??
The partition boot partition fat32 only contains
the folder:

Code:

EFI/Boot/grub/grub/grub.cfg
EFI/Microsoft
EFI/Ubuntu




To verify installation location:
After trying the boot info script.
The grub install is still on /dev/sdb !!!
And not on /dev/nvme0n1p1
So it's still the old situation.


https://sourceforge.net/projects/bootinfoscript

The result from bootscript:
Code:

                  Boot Info Script 0.61      [1 April 2012]


============================= Boot Info Summary: ===============================

 => No boot loader is installed in the MBR of /dev/sda.
 => Grub Legacy0.97 is installed in the MBR of /dev/sdb and looks at sector
    981762096 of the same hard drive for the stage2 file.  A stage2 file is at
    this location on /dev/sdb.  Stage2 looks on partition #1 for
    /boot/grub/menu.lst..
 => Windows is installed in the MBR of /dev/sdc.

sda1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  Grub Legacy
    Boot sector info:  Grub Legacy (v0.97) is installed in the boot sector
                       of sda1 and looks at sector 217830912 of the same hard
                       drive for the stage2 file.  A stage2 file is at this
                       location on /dev/sda.  Stage2 looks on partition #1
                       for /boot/grub/menu.lst.
    Operating System:  Linux Mint 18.3 Sylvia
    Boot files:        /boot/grub/menu.lst /boot/grub/grub.cfg /etc/fstab

sda2: __________________________________________________________________________

    File system:       swap
    Boot sector type:  -
    Boot sector info:

sdb1: __________________________________________________________________________

    File system:       ext4
    Boot sector type:  -
    Boot sector info:
    Operating System:  Linux Mint 18.3 Sylvia
    Boot files:        /boot/grub/grub.cfg /etc/fstab

sdc1: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows Vista/7: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System: 
    Boot files:       

sdc2: __________________________________________________________________________

    File system:       vfat
    Boot sector type:  Unknown
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System: 
    Boot files:        /efi/Boot/bootx64.efi /efi/ubuntu/fwupx64.efi
                       /efi/ubuntu/grubx64.efi /efi/ubuntu/mmx64.efi
                       /efi/ubuntu/shimx64.efi

sdc3: __________________________________________________________________________

    File system:       
    Boot sector type:  -
    Boot sector info:
    Mounting failed:   mount: unknown filesystem type ''

sdc4: __________________________________________________________________________

    File system:       ntfs
    Boot sector type:  Windows Vista/7: NTFS
    Boot sector info:  No errors found in the Boot Parameter Block.
    Operating System: 
    Boot files:        /Windows/System32/winload.exe

============================ Drive/Partition Info: =============================

Drive: sda _____________________________________________________________________
Disk /dev/sda: 465,8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sda1                   1   976,773,167   976,773,167  ee GPT


GUID Partition Table detected.

Partition    Start Sector    End Sector  # of Sectors System
/dev/sda1       7,815,168   976,773,134   968,957,967 Data partition (Linux)
/dev/sda2           2,048     7,815,167     7,813,120 Swap partition (Linux)

Drive: sdb _____________________________________________________________________
Disk /dev/sdb: 1,8 TiB, 2000398934016 bytes, 3907029168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdb1                   1 3,907,029,167 3,907,029,167  ee GPT


GUID Partition Table detected.

Partition    Start Sector    End Sector  # of Sectors System
/dev/sdb1           2,048 3,907,029,134 3,907,027,087 Data partition (Linux)

Drive: sdc _____________________________________________________________________
Disk /dev/sdc: 1,8 TiB, 2000398934016 bytes, 3907029168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt

Partition  Boot  Start Sector    End Sector  # of Sectors  Id System

/dev/sdc1                   1 4,294,967,295 4,294,967,295  ee GPT

/dev/sdc1 ends after the last sector of /dev/sdc

GUID Partition Table detected.

Partition    Start Sector    End Sector  # of Sectors System
/dev/sdc1           2,048     1,023,999     1,021,952 Windows Recovery Environment (Windows)
/dev/sdc2       1,024,000     1,226,751       202,752 EFI System partition
/dev/sdc3       1,226,752     1,259,519        32,768 Microsoft Reserved Partition (Windows)
/dev/sdc4       1,259,520 3,907,028,991 3,905,769,472 Data partition (Windows/Linux)

"blkid" output: ________________________________________________________________

Device           UUID                                   TYPE       LABEL

/dev/nvme0n1                                                       
/dev/nvme0n1p1   DDF5-5C4A                              vfat       
/dev/sda1        f8aed4d5-d404-436b-b211-386aa62e2640   ext4       
/dev/sda2        7f1d7970-015b-426c-ac2f-0116add1288c   swap       
/dev/sdb1        9d7d45d4-43cd-4477-b35c-774b5dae60ec   ext4       
/dev/sdc1        36A48134A480F81F                       ntfs       Herstel
/dev/sdc2        5682-E5A5                              vfat       
/dev/sdc3                                                         
/dev/sdc4        02F89488F8947B9B                       ntfs       

================================ Mount points: =================================

Device           Mount_Point              Type       Options

/dev/nvme0n1p1   /boot/efi                vfat       (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/nvme0n1p1   /mnt/nvme0n1p1           vfat       (rw,relatime,fmask=0077,dmask=0077,codepage=437,iocharset=iso8859-1,shortname=mixed,errors=remount-ro)
/dev/sda1        /                        ext4       (rw,relatime,errors=remount-ro,data=ordered)


=========================== sda1/boot/grub/menu.lst: ===========================

--------------------------------------------------------------------------------
# menu.lst - See: grub(8), info grub, update-grub(8)
#            grub-install(8), grub-floppy(8),
#            grub-md5-crypt, /usr/share/doc/grub
#            and /usr/share/doc/grub-legacy-doc/.

## default num
# Set the default entry to the entry number NUM. Numbering starts from 0, and
# the entry number 0 is the default if the command is not used.
#
# You can specify 'saved' instead of a number. In this case, the default entry
# is the entry saved with the command 'savedefault'.
# WARNING: If you are using dmraid do not use 'savedefault' or your
# array will desync and will not let you boot your system.
default      0

## timeout sec
# Set a timeout, in SEC seconds, before automatically booting the default entry
# (normally the first entry defined).
timeout      3

## hiddenmenu
# Hides the menu by default (press ESC to see the menu)
hiddenmenu

# Pretty colours
#color cyan/blue white/blue

## password ['--md5'] passwd
# If used in the first section of a menu file, disable all interactive editing
# control (menu entry editor and command-line)  and entries protected by the
# command 'lock'
# e.g. password topsecret
#      password --md5 $1$gLhU0/$aW78kHK1QfV3P2b2znUoe/
# password topsecret

#
# examples
#
# title      Windows 95/98/NT/2000
# root      (hd0,0)
# makeactive
# chainloader   +1
#
# title      Linux
# root      (hd0,1)
# kernel   /vmlinuz root=/dev/hda2 ro
#

#
# Put static boot stanzas before and/or after AUTOMAGIC KERNEL LIST

### BEGIN AUTOMAGIC KERNELS LIST
## lines between the AUTOMAGIC KERNELS LIST markers will be modified
## by the debian update-grub script except for the default options below

## DO NOT UNCOMMENT THEM, Just edit them to your needs

## ## Start Default Options ##
## default kernel options
## default kernel options for automagic boot options
## If you want special options for specific kernels use kopt_x_y_z
## where x.y.z is kernel version. Minor versions can be omitted.
## e.g. kopt=root=/dev/hda1 ro
##      kopt_2_6_8=root=/dev/hdc1 ro
##      kopt_2_6_8_2_686=root=/dev/hdc2 ro
# kopt=root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro

## default grub root device
## e.g. groot=(hd0,0)
# groot=f8aed4d5-d404-436b-b211-386aa62e2640

## should update-grub create alternative automagic boot options
## e.g. alternative=true
##      alternative=false
# alternative=true

## should update-grub lock alternative automagic boot options
## e.g. lockalternative=true
##      lockalternative=false
# lockalternative=false

## additional options to use with the default boot option, but not with the
## alternatives
## e.g. defoptions=vga=791 resume=/dev/hda5
# defoptions=quiet splash

## should update-grub lock old automagic boot options
## e.g. lockold=false
##      lockold=true
# lockold=false

## Xen hypervisor options to use with the default Xen boot option
# xenhopt=

## Xen Linux kernel options to use with the default Xen boot option
# xenkopt=console=tty0

## altoption boot targets option
## multiple altoptions lines are allowed
## e.g. altoptions=(extra menu suffix) extra boot options
##      altoptions=(recovery) single
# altoptions=(recovery mode) single

## controls how many kernels should be put into the menu.lst
## only counts the first occurence of a kernel, not the
## alternative kernel options
## e.g. howmany=all
##      howmany=7
# howmany=all

## specify if running in Xen domU or have grub detect automatically
## update-grub will ignore non-xen kernels when running in domU and vice versa
## e.g. indomU=detect
##      indomU=true
##      indomU=false
# indomU=detect

## should update-grub create memtest86 boot option
## e.g. memtest86=true
##      memtest86=false
# memtest86=true

## should update-grub adjust the value of the default booted system
## can be true or false
# updatedefaultentry=false

## should update-grub add savedefault to the default options
## can be true or false
# savedefault=false

## ## End Default Options ##

title      Linux Mint 18.3 Sylvia, kernel 4.10.0-38-generic
uuid      f8aed4d5-d404-436b-b211-386aa62e2640
kernel      /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro quiet splash
initrd      /boot/initrd.img-4.10.0-38-generic

title      Linux Mint 18.3 Sylvia, kernel 4.10.0-38-generic (recovery mode)
uuid      f8aed4d5-d404-436b-b211-386aa62e2640
kernel      /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro  single
initrd      /boot/initrd.img-4.10.0-38-generic

title      Linux Mint 18.3 Sylvia, memtest86+
uuid      f8aed4d5-d404-436b-b211-386aa62e2640
kernel      /boot/memtest86+.bin

### END DEBIAN AUTOMAGIC KERNELS LIST
--------------------------------------------------------------------------------

=========================== sda1/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd0,gpt1'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 --hint='hd0,gpt1'  f8aed4d5-d404-436b-b211-386aa62e2640
else
  search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
    set timeout=10
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/06_mint_theme ###
set menu_color_normal=white/black
set menu_color_highlight=white/light-gray
### END /etc/grub.d/06_mint_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
   set gfxpayload="${1}"
   if [ "${1}" = "keep" ]; then
      set vt_handoff=vt.handoff=7
   else
      set vt_handoff=
   fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Linux Mint 18.3 Cinnamon 64-bit' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-f8aed4d5-d404-436b-b211-386aa62e2640' {
   recordfail
   load_video
   gfxmode $linux_gfx_mode
   insmod gzio
   if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
   insmod part_gpt
   insmod ext2
   set root='hd0,gpt1'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 --hint='hd0,gpt1'  f8aed4d5-d404-436b-b211-386aa62e2640
   else
     search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
   fi
        linux   /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro  quiet splash $vt_handoff
   initrd   /boot/initrd.img-4.10.0-38-generic
}
submenu 'Advanced options for Linux Mint 18.3 Cinnamon 64-bit' $menuentry_id_option 'gnulinux-advanced-f8aed4d5-d404-436b-b211-386aa62e2640' {
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.10.0-38-generic-advanced-f8aed4d5-d404-436b-b211-386aa62e2640' {
      recordfail
      load_video
      gfxmode $linux_gfx_mode
      insmod gzio
      if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
      insmod part_gpt
      insmod ext2
      set root='hd0,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 --hint='hd0,gpt1'  f8aed4d5-d404-436b-b211-386aa62e2640
      else
        search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
      fi
      echo   'Loading Linux 4.10.0-38-generic ...'
           linux   /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro  quiet splash $vt_handoff
      echo   'Loading initial ramdisk ...'
      initrd   /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.10.0-38-generic-init-upstart-f8aed4d5-d404-436b-b211-386aa62e2640' {
      recordfail
      load_video
      gfxmode $linux_gfx_mode
      insmod gzio
      if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
      insmod part_gpt
      insmod ext2
      set root='hd0,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 --hint='hd0,gpt1'  f8aed4d5-d404-436b-b211-386aa62e2640
      else
        search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
      fi
      echo   'Loading Linux 4.10.0-38-generic ...'
           linux   /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro  quiet splash $vt_handoff init=/sbin/upstart
      echo   'Loading initial ramdisk ...'
      initrd   /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.10.0-38-generic-recovery-f8aed4d5-d404-436b-b211-386aa62e2640' {
      recordfail
      load_video
      insmod gzio
      if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
      insmod part_gpt
      insmod ext2
      set root='hd0,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1 --hint='hd0,gpt1'  f8aed4d5-d404-436b-b211-386aa62e2640
      else
        search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
      fi
      echo   'Loading Linux 4.10.0-38-generic ...'
           linux   /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro recovery nomodeset
      echo   'Loading initial ramdisk ...'
      initrd   /boot/initrd.img-4.10.0-38-generic
   }
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_lupin ###
### END /etc/grub.d/10_lupin ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/nvme0n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-DDF5-5C4A' {
   insmod part_gpt
   insmod fat
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root  DDF5-5C4A
   else
     search --no-floppy --fs-uuid --set=root DDF5-5C4A
   fi
   chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
menuentry 'Linux Mint 18.3 Sylvia (18.3) (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-730181ff-88da-418d-b3a7-75030205d6c5' {
   insmod part_gpt
   insmod ext2
   set root='hd1,gpt1'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1 --hint='hd1,gpt1'  730181ff-88da-418d-b3a7-75030205d6c5
   else
     search --no-floppy --fs-uuid --set=root 730181ff-88da-418d-b3a7-75030205d6c5
   fi
   linux /boot/vmlinuz-4.10.0-38-generic root=UUID=730181ff-88da-418d-b3a7-75030205d6c5 ro quiet splash $vt_handoff
   initrd /boot/initrd.img-4.10.0-38-generic
}
submenu 'Advanced options for Linux Mint 18.3 Sylvia (18.3) (on /dev/sdb1)' $menuentry_id_option 'osprober-gnulinux-advanced-730181ff-88da-418d-b3a7-75030205d6c5' {
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.10.0-38-generic--730181ff-88da-418d-b3a7-75030205d6c5' {
      insmod part_gpt
      insmod ext2
      set root='hd1,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1 --hint='hd1,gpt1'  730181ff-88da-418d-b3a7-75030205d6c5
      else
        search --no-floppy --fs-uuid --set=root 730181ff-88da-418d-b3a7-75030205d6c5
      fi
      linux /boot/vmlinuz-4.10.0-38-generic root=UUID=730181ff-88da-418d-b3a7-75030205d6c5 ro quiet splash $vt_handoff
      initrd /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.10.0-38-generic--730181ff-88da-418d-b3a7-75030205d6c5' {
      insmod part_gpt
      insmod ext2
      set root='hd1,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1 --hint='hd1,gpt1'  730181ff-88da-418d-b3a7-75030205d6c5
      else
        search --no-floppy --fs-uuid --set=root 730181ff-88da-418d-b3a7-75030205d6c5
      fi
      linux /boot/vmlinuz-4.10.0-38-generic root=UUID=730181ff-88da-418d-b3a7-75030205d6c5 ro quiet splash $vt_handoff
      initrd /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (upstart) (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.10.0-38-generic--730181ff-88da-418d-b3a7-75030205d6c5' {
      insmod part_gpt
      insmod ext2
      set root='hd1,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1 --hint='hd1,gpt1'  730181ff-88da-418d-b3a7-75030205d6c5
      else
        search --no-floppy --fs-uuid --set=root 730181ff-88da-418d-b3a7-75030205d6c5
      fi
      linux /boot/vmlinuz-4.10.0-38-generic root=UUID=730181ff-88da-418d-b3a7-75030205d6c5 ro quiet splash $vt_handoff init=/sbin/upstart
      initrd /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (recovery mode) (on /dev/sdb1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.10.0-38-generic-root=UUID=730181ff-88da-418d-b3a7-75030205d6c5 ro recovery nomodeset-730181ff-88da-418d-b3a7-75030205d6c5' {
      insmod part_gpt
      insmod ext2
      set root='hd1,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1 --hint='hd1,gpt1'  730181ff-88da-418d-b3a7-75030205d6c5
      else
        search --no-floppy --fs-uuid --set=root 730181ff-88da-418d-b3a7-75030205d6c5
      fi
      linux /boot/vmlinuz-4.10.0-38-generic root=UUID=730181ff-88da-418d-b3a7-75030205d6c5 ro recovery nomodeset
      initrd /boot/initrd.img-4.10.0-38-generic
   }
}

menuentry 'Windows Boot Manager (on /dev/sdc2)' --class windows --class os $menuentry_id_option 'osprober-efi-5682-E5A5' {
   insmod part_gpt
   insmod fat
   set root='hd2,gpt2'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt2 --hint-efi=hd2,gpt2 --hint-baremetal=ahci2,gpt2 --hint='hd2,gpt2'  5682-E5A5
   else
     search --no-floppy --fs-uuid --set=root 5682-E5A5
   fi
   chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {
   fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sda1/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sda1 during installation
UUID=f8aed4d5-d404-436b-b211-386aa62e2640 /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/sdb2 during installation
#UUID=5682-E5A5  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/sda2 during installation
UUID=7f1d7970-015b-426c-ac2f-0116add1288c none            swap    sw              0       0
#nvme ssd
UUID=DDF5-5C4A  /boot/efi       vfat umask=0077  0 1


//192.168.178.123/SharedFolderT7400 /media/SharedFolderT7400 cifs  user,dom=192.168.178.123,username=peter,password=pnoordzij87 0 0


--------------------------------------------------------------------------------

=================== sda1: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)


=========================== sdb1/boot/grub/grub.cfg: ===========================

--------------------------------------------------------------------------------
#
# DO NOT EDIT THIS FILE
#
# It is automatically generated by grub-mkconfig using templates
# from /etc/grub.d and settings from /etc/default/grub
#

### BEGIN /etc/grub.d/00_header ###
if [ -s $prefix/grubenv ]; then
  set have_grubenv=true
  load_env
fi
if [ "${next_entry}" ] ; then
   set default="${next_entry}"
   set next_entry=
   save_env next_entry
   set boot_once=true
else
   set default="0"
fi

if [ x"${feature_menuentry_id}" = xy ]; then
  menuentry_id_option="--id"
else
  menuentry_id_option=""
fi

export menuentry_id_option

if [ "${prev_saved_entry}" ]; then
  set saved_entry="${prev_saved_entry}"
  save_env saved_entry
  set prev_saved_entry=
  save_env prev_saved_entry
  set boot_once=true
fi

function savedefault {
  if [ -z "${boot_once}" ]; then
    saved_entry="${chosen}"
    save_env saved_entry
  fi
}
function recordfail {
  set recordfail=1
  if [ -n "${have_grubenv}" ]; then if [ -z "${boot_once}" ]; then save_env recordfail; fi; fi
}
function load_video {
  if [ x$feature_all_video_module = xy ]; then
    insmod all_video
  else
    insmod efi_gop
    insmod efi_uga
    insmod ieee1275_fb
    insmod vbe
    insmod vga
    insmod video_bochs
    insmod video_cirrus
  fi
}

if [ x$feature_default_font_path = xy ] ; then
   font=unicode
else
insmod part_gpt
insmod ext2
set root='hd1,gpt1'
if [ x$feature_platform_search_hint = xy ]; then
  search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1  9d7d45d4-43cd-4477-b35c-774b5dae60ec
else
  search --no-floppy --fs-uuid --set=root 9d7d45d4-43cd-4477-b35c-774b5dae60ec
fi
    font="/usr/share/grub/unicode.pf2"
fi

if loadfont $font ; then
  set gfxmode=auto
  load_video
  insmod gfxterm
  set locale_dir=$prefix/locale
  set lang=en_US
  insmod gettext
fi
terminal_output gfxterm
if [ "${recordfail}" = 1 ] ; then
  set timeout=30
else
  if [ x$feature_timeout_style = xy ] ; then
    set timeout_style=menu
    set timeout=10
  # Fallback normal timeout code in case the timeout_style feature is
  # unavailable.
  else
    set timeout=10
  fi
fi
### END /etc/grub.d/00_header ###

### BEGIN /etc/grub.d/05_debian_theme ###
set menu_color_normal=white/black
set menu_color_highlight=black/light-gray
### END /etc/grub.d/05_debian_theme ###

### BEGIN /etc/grub.d/06_mint_theme ###
set menu_color_normal=white/black
set menu_color_highlight=white/light-gray
### END /etc/grub.d/06_mint_theme ###

### BEGIN /etc/grub.d/10_linux ###
function gfxmode {
   set gfxpayload="${1}"
   if [ "${1}" = "keep" ]; then
      set vt_handoff=vt.handoff=7
   else
      set vt_handoff=
   fi
}
if [ "${recordfail}" != 1 ]; then
  if [ -e ${prefix}/gfxblacklist.txt ]; then
    if hwmatch ${prefix}/gfxblacklist.txt 3; then
      if [ ${match} = 0 ]; then
        set linux_gfx_mode=keep
      else
        set linux_gfx_mode=text
      fi
    else
      set linux_gfx_mode=text
    fi
  else
    set linux_gfx_mode=keep
  fi
else
  set linux_gfx_mode=text
fi
export linux_gfx_mode
menuentry 'Linux Mint 18.3 Cinnamon 64-bit' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-simple-9d7d45d4-43cd-4477-b35c-774b5dae60ec' {
   recordfail
   load_video
   gfxmode $linux_gfx_mode
   insmod gzio
   if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
   insmod part_gpt
   insmod ext2
   set root='hd1,gpt1'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1  9d7d45d4-43cd-4477-b35c-774b5dae60ec
   else
     search --no-floppy --fs-uuid --set=root 9d7d45d4-43cd-4477-b35c-774b5dae60ec
   fi
        linux   /boot/vmlinuz-4.10.0-38-generic root=UUID=9d7d45d4-43cd-4477-b35c-774b5dae60ec ro  quiet splash $vt_handoff
   initrd   /boot/initrd.img-4.10.0-38-generic
}
submenu 'Advanced options for Linux Mint 18.3 Cinnamon 64-bit' $menuentry_id_option 'gnulinux-advanced-9d7d45d4-43cd-4477-b35c-774b5dae60ec' {
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.10.0-38-generic-advanced-9d7d45d4-43cd-4477-b35c-774b5dae60ec' {
      recordfail
      load_video
      gfxmode $linux_gfx_mode
      insmod gzio
      if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
      insmod part_gpt
      insmod ext2
      set root='hd1,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1  9d7d45d4-43cd-4477-b35c-774b5dae60ec
      else
        search --no-floppy --fs-uuid --set=root 9d7d45d4-43cd-4477-b35c-774b5dae60ec
      fi
      echo   'Loading Linux 4.10.0-38-generic ...'
           linux   /boot/vmlinuz-4.10.0-38-generic root=UUID=9d7d45d4-43cd-4477-b35c-774b5dae60ec ro  quiet splash $vt_handoff
      echo   'Loading initial ramdisk ...'
      initrd   /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (upstart)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.10.0-38-generic-init-upstart-9d7d45d4-43cd-4477-b35c-774b5dae60ec' {
      recordfail
      load_video
      gfxmode $linux_gfx_mode
      insmod gzio
      if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
      insmod part_gpt
      insmod ext2
      set root='hd1,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1  9d7d45d4-43cd-4477-b35c-774b5dae60ec
      else
        search --no-floppy --fs-uuid --set=root 9d7d45d4-43cd-4477-b35c-774b5dae60ec
      fi
      echo   'Loading Linux 4.10.0-38-generic ...'
           linux   /boot/vmlinuz-4.10.0-38-generic root=UUID=9d7d45d4-43cd-4477-b35c-774b5dae60ec ro  quiet splash $vt_handoff init=/sbin/upstart
      echo   'Loading initial ramdisk ...'
      initrd   /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (recovery mode)' --class ubuntu --class gnu-linux --class gnu --class os $menuentry_id_option 'gnulinux-4.10.0-38-generic-recovery-9d7d45d4-43cd-4477-b35c-774b5dae60ec' {
      recordfail
      load_video
      insmod gzio
      if [ x$grub_platform = xxen ]; then insmod xzio; insmod lzopio; fi
      insmod part_gpt
      insmod ext2
      set root='hd1,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd1,gpt1 --hint-efi=hd1,gpt1 --hint-baremetal=ahci1,gpt1  9d7d45d4-43cd-4477-b35c-774b5dae60ec
      else
        search --no-floppy --fs-uuid --set=root 9d7d45d4-43cd-4477-b35c-774b5dae60ec
      fi
      echo   'Loading Linux 4.10.0-38-generic ...'
           linux   /boot/vmlinuz-4.10.0-38-generic root=UUID=9d7d45d4-43cd-4477-b35c-774b5dae60ec ro recovery nomodeset
      echo   'Loading initial ramdisk ...'
      initrd   /boot/initrd.img-4.10.0-38-generic
   }
}

### END /etc/grub.d/10_linux ###

### BEGIN /etc/grub.d/10_lupin ###
### END /etc/grub.d/10_lupin ###

### BEGIN /etc/grub.d/20_linux_xen ###

### END /etc/grub.d/20_linux_xen ###

### BEGIN /etc/grub.d/20_memtest86+ ###
### END /etc/grub.d/20_memtest86+ ###

### BEGIN /etc/grub.d/30_os-prober ###
menuentry 'Windows Boot Manager (on /dev/nvme0n1p1)' --class windows --class os $menuentry_id_option 'osprober-efi-DDF5-5C4A' {
   insmod part_gpt
   insmod fat
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root  DDF5-5C4A
   else
     search --no-floppy --fs-uuid --set=root DDF5-5C4A
   fi
   chainloader /EFI/Microsoft/Boot/bootmgfw.efi
}
menuentry 'Linux Mint 18.3 Sylvia (18.3) (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-simple-f8aed4d5-d404-436b-b211-386aa62e2640' {
   insmod part_gpt
   insmod ext2
   set root='hd0,gpt1'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  f8aed4d5-d404-436b-b211-386aa62e2640
   else
     search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
   fi
   linux /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro quiet splash $vt_handoff
   initrd /boot/initrd.img-4.10.0-38-generic
}
submenu 'Advanced options for Linux Mint 18.3 Sylvia (18.3) (on /dev/sda1)' $menuentry_id_option 'osprober-gnulinux-advanced-f8aed4d5-d404-436b-b211-386aa62e2640' {
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.10.0-38-generic--f8aed4d5-d404-436b-b211-386aa62e2640' {
      insmod part_gpt
      insmod ext2
      set root='hd0,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  f8aed4d5-d404-436b-b211-386aa62e2640
      else
        search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
      fi
      linux /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro quiet splash $vt_handoff
      initrd /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.10.0-38-generic--f8aed4d5-d404-436b-b211-386aa62e2640' {
      insmod part_gpt
      insmod ext2
      set root='hd0,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  f8aed4d5-d404-436b-b211-386aa62e2640
      else
        search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
      fi
      linux /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro quiet splash $vt_handoff
      initrd /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (upstart) (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.10.0-38-generic--f8aed4d5-d404-436b-b211-386aa62e2640' {
      insmod part_gpt
      insmod ext2
      set root='hd0,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  f8aed4d5-d404-436b-b211-386aa62e2640
      else
        search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
      fi
      linux /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro quiet splash $vt_handoff init=/sbin/upstart
      initrd /boot/initrd.img-4.10.0-38-generic
   }
   menuentry 'Linux Mint 18.3 Cinnamon 64-bit, with Linux 4.10.0-38-generic (recovery mode) (on /dev/sda1)' --class gnu-linux --class gnu --class os $menuentry_id_option 'osprober-gnulinux-/boot/vmlinuz-4.10.0-38-generic-root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro recovery nomodeset-f8aed4d5-d404-436b-b211-386aa62e2640' {
      insmod part_gpt
      insmod ext2
      set root='hd0,gpt1'
      if [ x$feature_platform_search_hint = xy ]; then
        search --no-floppy --fs-uuid --set=root --hint-bios=hd0,gpt1 --hint-efi=hd0,gpt1 --hint-baremetal=ahci0,gpt1  f8aed4d5-d404-436b-b211-386aa62e2640
      else
        search --no-floppy --fs-uuid --set=root f8aed4d5-d404-436b-b211-386aa62e2640
      fi
      linux /boot/vmlinuz-4.10.0-38-generic root=UUID=f8aed4d5-d404-436b-b211-386aa62e2640 ro recovery nomodeset
      initrd /boot/initrd.img-4.10.0-38-generic
   }
}

menuentry 'Windows Boot Manager (on /dev/sdc2)' --class windows --class os $menuentry_id_option 'osprober-efi-5682-E5A5' {
   insmod part_gpt
   insmod fat
   set root='hd2,gpt2'
   if [ x$feature_platform_search_hint = xy ]; then
     search --no-floppy --fs-uuid --set=root --hint-bios=hd2,gpt2 --hint-efi=hd2,gpt2 --hint-baremetal=ahci2,gpt2  5682-E5A5
   else
     search --no-floppy --fs-uuid --set=root 5682-E5A5
   fi
   chainloader /efi/Microsoft/Boot/bootmgfw.efi
}
set timeout_style=menu
if [ "${timeout}" = 0 ]; then
  set timeout=10
fi
### END /etc/grub.d/30_os-prober ###

### BEGIN /etc/grub.d/30_uefi-firmware ###
menuentry 'System setup' $menuentry_id_option 'uefi-firmware' {
   fwsetup
}
### END /etc/grub.d/30_uefi-firmware ###

### BEGIN /etc/grub.d/40_custom ###
# This file provides an easy way to add custom menu entries.  Simply type the
# menu entries you want to add after this comment.  Be careful not to change
# the 'exec tail' line above.
### END /etc/grub.d/40_custom ###

### BEGIN /etc/grub.d/41_custom ###
if [ -f  ${config_directory}/custom.cfg ]; then
  source ${config_directory}/custom.cfg
elif [ -z "${config_directory}" -a -f  $prefix/custom.cfg ]; then
  source $prefix/custom.cfg;
fi
### END /etc/grub.d/41_custom ###
--------------------------------------------------------------------------------

=============================== sdb1/etc/fstab: ================================

--------------------------------------------------------------------------------
# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
# / was on /dev/sdb1 during installation
UUID=9d7d45d4-43cd-4477-b35c-774b5dae60ec /               ext4    errors=remount-ro 0       1
# /boot/efi was on /dev/nvme0n1p1 during installation
UUID=DDF5-5C4A  /boot/efi       vfat    umask=0077      0       1
# swap was on /dev/sda2 during installation
UUID=7f1d7970-015b-426c-ac2f-0116add1288c none            swap    sw              0       0
--------------------------------------------------------------------------------

=================== sdb1: Location of files loaded by Grub: ====================

           GiB - GB             File                                 Fragment(s)


======================== Unknown MBRs/Boot Sectors/etc: ========================

Unknown BootLoader on sdc2

00000000  eb 58 90 4d 53 44 4f 53  35 2e 30 00 02 02 0e 1a  |.X.MSDOS5.0.....|
00000010  02 00 00 00 00 f8 00 00  3f 00 ff 00 00 a0 0f 00  |........?.......|
00000020  00 18 03 00 f9 02 00 00  00 00 00 00 02 00 00 00  |................|
00000030  01 00 06 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000040  80 00 29 a5 e5 82 56 4e  4f 20 4e 41 4d 45 20 20  |..)...VNO NAME  |
00000050  20 20 46 41 54 33 32 20  20 20 33 c9 8e d1 bc f4  |  FAT32   3.....|
00000060  7b 8e c1 8e d9 bd 00 7c  88 56 40 88 4e 02 8a 56  |{......|.V@.N..V|
00000070  40 b4 41 bb aa 55 cd 13  72 10 81 fb 55 aa 75 0a  |@.A..U..r...U.u.|
00000080  f6 c1 01 74 05 fe 46 02  eb 2d 8a 56 40 b4 08 cd  |...t..F..-.V@...|
00000090  13 73 05 b9 ff ff 8a f1  66 0f b6 c6 40 66 0f b6  |.s......f...@f..|
000000a0  d1 80 e2 3f f7 e2 86 cd  c0 ed 06 41 66 0f b7 c9  |...?.......Af...|
000000b0  66 f7 e1 66 89 46 f8 83  7e 16 00 75 39 83 7e 2a  |f..f.F..~..u9.~*|
000000c0  00 77 33 66 8b 46 1c 66  83 c0 0c bb 00 80 b9 01  |.w3f.F.f........|
000000d0  00 e8 2c 00 e9 a8 03 a1  f8 7d 80 c4 7c 8b f0 ac  |..,......}..|...|
000000e0  84 c0 74 17 3c ff 74 09  b4 0e bb 07 00 cd 10 eb  |..t.<.t.........|
000000f0  ee a1 fa 7d eb e4 a1 7d  80 eb df 98 cd 16 cd 19  |...}...}........|
00000100  66 60 80 7e 02 00 0f 84  20 00 66 6a 00 66 50 06  |f`.~.... .fj.fP.|
00000110  53 66 68 10 00 01 00 b4  42 8a 56 40 8b f4 cd 13  |Sfh.....B.V@....|
00000120  66 58 66 58 66 58 66 58  eb 33 66 3b 46 f8 72 03  |fXfXfXfX.3f;F.r.|
00000130  f9 eb 2a 66 33 d2 66 0f  b7 4e 18 66 f7 f1 fe c2  |..*f3.f..N.f....|
00000140  8a ca 66 8b d0 66 c1 ea  10 f7 76 1a 86 d6 8a 56  |..f..f....v....V|
00000150  40 8a e8 c0 e4 06 0a cc  b8 01 02 cd 13 66 61 0f  |@............fa.|
00000160  82 74 ff 81 c3 00 02 66  40 49 75 94 c3 42 4f 4f  |.t.....f@Iu..BOO|
00000170  54 4d 47 52 20 20 20 20  00 00 00 00 00 00 00 00  |TMGR    ........|
00000180  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
*
000001a0  00 00 00 00 00 00 00 00  00 00 00 00 0d 0a 44 69  |..............Di|
000001b0  73 6b 20 65 72 72 6f 72  ff 0d 0a 50 72 65 73 73  |sk error...Press|
000001c0  20 61 6e 79 20 6b 65 79  20 74 6f 20 72 65 73 74  | any key to rest|
000001d0  61 72 74 0d 0a 00 00 00  00 00 00 00 00 00 00 00  |art.............|
000001e0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
000001f0  00 00 00 00 00 00 00 00  ac 01 b9 01 00 00 55 aa  |..............U.|
00000200


========= Devices which don't seem to have a corresponding hard drive: =========

sdd sde sdf sdg sdh

=============================== StdErr Messages: ===============================

cat: /tmp/BootInfo-obavwXU3/Tmp_Log: No such file or directory
cat: /tmp/BootInfo-obavwXU3/Tmp_Log: No such file or directory




Conclusion the grub location is still the same as the original situation:
Grub Legacy0.97 is installed in the MBR of /dev/sdb and looks at sector
981762096 of the same hard drive for the stage2 file. A stage2 file is at
this location on /dev/sdb.
Stage2 looks on partition #1 for
/boot/grub/menu.lst..

The point is that i think after reading the org grub manual that the solution must be very simple..
https://www.gnu.org/software/grub/manual/grub/grub.html#Installing-GRUB-using-grub_002dinstall

So once it's working it's just a matter of manually changing the grub conf. file.

In this link it also seems very simple.
http://howtoubuntu.org/how-to-repair-restore-reinstall-grub-2-with-a-ubuntu-live-cd

I have not tried this one yet(im not at workstation now,laptop):
Code:

update-grub

??
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DONAHUE
Watchman
Watchman


Joined: 09 Dec 2006
Posts: 7553
Location: Goose Creek SC

PostPosted: Thu Mar 22, 2018 7:03 pm    Post subject: Reply with quote

Code:
sudo grub-install /dev/sda
Installing for x86_64-efi platform
Installation finished.No error reported
is appropriate for BIOS mode, not for UEFI mode. Presumably GRUB_PLATFORMS="x86_64" is in /etc/portage/make.conf. The EFI Systems Partition (ESP) needs to be mounted (handbook default is at /boot) and grub needs to be told where that mount point is. run as root
Code:
grub-install --target=x86_64.efi --efi_directory=/boot

I don't understand
Code:
sda= nvme0n1
fat32 partition on sda= nvme0n1p1

/dev/sda is a sata hard drive
/dev/nvme0n1 is the first M2-PCIE drive on the first M2-PCIE interface, consistent with (Samsung 960 evo)

My disk setup:
Code:
fdisk -l
Disk /dev/nvme0n1: 238.5 GiB, 256060514304 bytes, 500118192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: AD194627-0FE3-46A6-A7E1-C0C77F675A84

Device             Start       End   Sectors   Size Type
/dev/nvme0n1p1      2048    923647    921600   450M Windows recovery environment
/dev/nvme0n1p2    923648   1128447    204800   100M EFI System
/dev/nvme0n1p3   1128448   1161215     32768    16M Microsoft reserved
/dev/nvme0n1p4   1161216 498364842 497203627 237.1G Microsoft basic data
/dev/nvme0n1p5 498366464 500115455   1748992   854M Windows recovery environment


Disk /dev/nvme1n1: 477 GiB, 512110190592 bytes, 1000215216 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 8EBF5F30-C342-4F4F-8F0D-9848B1E4793B

Device             Start        End   Sectors   Size Type
/dev/nvme1n1p1      2048  934678527 934676480 445.7G Linux filesystem
/dev/nvme1n1p2 934678528 1000214527  65536000  31.3G Linux swap
My sequence: Boot sysresccd, enter chroot or boot gentoo, then run:
Code:
# I don't use a separate boot partition,
# I made /boot/efi as a mount point for my ESP
# I have emerged grub and os-prober
mount /dev/nvme0n1p2 /boot/efi
grub-install --target=x86_64.efi --efi_directory=/boot
grub-mkconfig -o /boot/grub/grub.cfg
ls /boot shows config-... efi grub system.map-... vmlinuz-...
ls /boot/efi shows EFI 'System Volume Information'
ls /boot/efi/EFI shows Boot gentoo Microsoft refind
I use rEFInd, just keep grub around for times like this
ls /boot/efi/EFI/gentoo shows grubx64.efi

in multi operating system environment I think it best to have only one grub and one ESP.

[Moderator edit: changed [quote] tags to [code] tags to preserve output layout. -Hu]
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PeterNL
n00b
n00b


Joined: 20 Feb 2018
Posts: 10

PostPosted: Thu Mar 29, 2018 3:09 pm    Post subject: Reply with quote

Sorry for my late response

Quote:


I don't understand
Quote:
sda= nvme0n1
fat32 partition on sda= nvme0n1p1


This is correct. At the first topic i made pseudo names for not making my question to complicated. So there i named nvme0n1, sda. Therefore sda=nvme0n1. Sorry for the confusement.


I am about to use only one ESP. Which I want completely at nvme0 for boot speeds.

And I have one temporarily on my swapable drive.
For example I have a Mac G5 (Powerpc architecture) I do not want to compile Gentoo on it.
However I am crosscompiling on this workstation I want to create a ready to boot harddrive. So then I would technically have 2 ESP's. But the drive will be in the G5 asap.
So then:
Code:

#For removable installs you have to use --removable and specify both --boot-directory and --efi-directory:

 grub-install --efi-directory=/mnt/usb --boot-directory=/mnt/usb/boot --removable



What I did on my workstation was:

Code:

sudo mount /dev/nvme0n1p1 /mnt/nvme0n1p1/
#on uefi must be this command:
sudo grub-install --target=x86_64-efi --efi-directory=/mnt/nvme0n1p1/EFI/ --boot-directory=/mnt/nvme0p1/EFI
sudo grub-mkconfig -o /mnt/nvme0n1p1/EFI/Boot/grub/grub.cfg


Hopefully I can boot completely from nvme0n1 now.
I reboot now and see. Getting there :D.
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PeterNL
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Joined: 20 Feb 2018
Posts: 10

PostPosted: Thu Mar 29, 2018 3:56 pm    Post subject: Reply with quote

The grub menu still resides on sda.
After editing:

Code:

sudo vim /boot/grub/grub.cfg

I could tell the changes from the grub menu.

So after:
Code:

sudo grub-install --target=x86_64-efi --efi-directory=/mnt/nvme0n1p1/EFI/ --boot-directory=/mnt/nvme0p1/EFI
sudo grub-mkconfig -o /mnt/nvme0n1p1/EFI/Boot/grub/grub.cfg


The working grub menu is still on sda, not on the nvme0n1.
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Jaglover
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PostPosted: Thu Mar 29, 2018 4:31 pm    Post subject: Reply with quote

I'm curious. I agree using automated setup is a great, sophisticated way to add complexity. However, there is a simple way, too. Replacing the huge generated grub.cfg with an efficient easy to manage small file. Is this solution completely out of question for you?
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PeterNL
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PostPosted: Thu Mar 29, 2018 5:33 pm    Post subject: Reply with quote

It would be absolutely great to edit the grub.cfg with grub2 syntax. Actually I will do that.

the only problem now is that grub currently uses:
Code:

sda: /boot/grub/grub.cfg

and not:
Code:

nvme0n1p1: /EFI/boot/grub/grub.cfg


If this latter is the case, I think i'm almost ready. Then I can finetune, save the proces in a script and use over and over again
depending on how I want to configure my system.
It's just that i want to isolate the complete boot process to one partition,the one on nvme drive, completely independent.
In case I pull all my sata-harddrives out i can still boot grub on nvme. The grub menu would be meaningless, but still there,except the Gentoo os option, this will be also on the nvme. Once i put my harddrives back in i can boot them.
So no grub installation stuff, just running my script that will be based on this topics knowledge :D.
Or just a ready to go partition which i can mount and copy on any harddrive for external use. So once this works i store the partition. Or the script to generate this boot partition.
Therefore I wanted to use grub for multi platform usage.

Thanks!
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PeterNL
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PostPosted: Thu Mar 29, 2018 5:54 pm    Post subject: Reply with quote

Found something on:

[url]
https://www.linuxquestions.org/questions/linux-software-2/how-does-grub2-find-the-grub-cfg-file-794560/
[/url]

I'm about to try:
example:

Code:

grub-setup -r '(hd0,1)' /dev/sda


But im not with MBR I have an ESP partition. So my search continues.
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skellr
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PostPosted: Thu Mar 29, 2018 6:25 pm    Post subject: Reply with quote

PeterNL wrote:
But im not with MBR I have an ESP partition. So my search continues.

What is UEFI trying to boot? Let's make sure it is trying to boot what you want and not from the MBR.


Code:
efibootmgr -v
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PeterNL
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PostPosted: Thu Mar 29, 2018 6:48 pm    Post subject: Reply with quote

Code:

efibootmgr -v
BootCurrent: 0006
Timeout: 1 seconds
BootOrder: 0006,0001,0004,0007,0008,0000,0002,0003,0005
Boot0000  Hard Drive   BBS(HD,,0x0)..GO..NO..........S.a.m.s.u.n.g. .S.S.D. .9.6.0. .E.V.O. .5.0.0.G.B....................A...........................%8Sq........H..Gd-.;.A.
.MQ..L.S.a.m.s.u.n.g. .S.S.D. .9.6.0. .E.V.O. .5.0.0.G.B........BO..NO........o.S.T.2.0.0.0.D.M.0.0.6.-.2.D.M.1.6.4............
........A...........................>..Gd-.;.A..MQ..L. . . . . . . . . . . . .4.Z.9.Z.E.J.Q.3........BO..NO........o.S.T.2.0.0.0.D.M.0.0.6.-.2.D.M.1.6.4......
..............A...........................>..Gd-.;.A..MQ..L. . . . . . . . . . . . .4.Z.9.Z.5.M.8.D........BO..NO........o.S.a.m.s.u.n.g. .S.S.D. .8.5.0. .E.V.O. .5.0.0.G.B....................A...........................>..Gd-.;.A..MQ..L.3.S.3.
R.F.N.J.0.2.9.5.8.6.1. .A. . . . ........BO..NO........f.G.e.n.e.r.i.c.-.U.S.B.3...0. .C.R.W.-.S.D./.M.S.1...0.0....................A..................................
...Gd-.;.A..MQ..L.2.0.1.6.0.1.0.6.0.9.2.4........BO..NO........f.G.e.n.e.r.i.c.-.
U.S.B.3...0. .C.R.W.-.S.M./.x.D.1...0.0....................A..................................
...Gd-.;.A..MQ..L.2.0.1.6.0.1.0.6.0.9.2.4........BO..NO........f.G.e.n.e.r.i.c.-.
U.S.B.3...0. .C.R.W.-.S.D. .1...0.0....................A.....................................Gd-.;.A..MQ..L.
2.0.1.6.0.1.0.6.0.9.2.4........BO..NO........f.G.e.n.e.r.i.c.-.U.S.B.3...0. .C.R.W.-.M.S. .1...0.0....................A.....................................Gd-.;.A..MQ..L.
2.0.1.6.0.1.0.6.0.9.2.4........BO..NO........a.G.e.n.e.r.i.c.-.U.S.B.3...0. .C.R.W.-.C.F./.M.D.1...0.0....................A................................Gd-.
;.A..MQ..L.2.0.1.6.0.1.0.6.0.9.2.4........BO
Boot0001  Windows Boot Manager   HD(2,GPT,738e2c09-49c9-48cf-a3d7-504a04e25c05,0xfa000,0x31800)/File(\EFI\MICROSOFT\BOOT\BOOTMGFW.
EFI)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.
-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...M................
Boot0002* UEFI:CD/DVD Drive   BBS(129,,0x0)
Boot0003* UEFI:Removable Device   BBS(130,,0x0)
Boot0004  Windows Boot Manager   HD(1,GPT,f1feb360-a7c4-4561-9898-6b072cbb6dd6,0x800,0x400000)/File(\EFI\MICROSOFT\BOOT\BOOTMGFW.
EFI)..BO
Boot0005* UEFI:Network Device   BBS(131,,0x0)
Boot0006* ubuntu   HD(1,GPT,f1feb360-a7c4-4561-9898-6b072cbb6dd6,0x800,0x400000)/File(\EFI\UBUNTU\GRUBX64.
EFI)
Boot0007  ubuntu   HD(2,GPT,738e2c09-49c9-48cf-a3d7-504a04e25c05,0xfa000,0x31800)/File(\EFI\UBUNTU\SHIMX64.
EFI)..BO
Boot0008  ubuntu   HD(1,GPT,f1feb360-a7c4-4561-9898-6b072cbb6dd6,0x800,0x400000)/File(\EFI\UBUNTU\SHIMX64.
EFI)..BO




In uefi only the boot option "960 evo Ubuntu" is selected, no other.

[Moderator edit: broke long whitespace-free lines in code tags to fix thread layout. -Hu]
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skellr
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PostPosted: Thu Mar 29, 2018 7:56 pm    Post subject: Reply with quote

PeterNL wrote:
Code:

efibootmgr -v
BootCurrent: 0006
Timeout: 1 seconds
BootOrder: 0006,0001,0004,0007,0008,0000,0002,0003,0005
Boot0000  Hard Drive   BBS(HD,,0x0)..GO..NO..........S.a.m.s.u.n.g. .S.S.D. .9.6.0. .E.V.O. .5.0.0.G.B....................A...........................%8Sq........H..Gd-.;.A.
.MQ..L.S.a.m.s.u.n.g. .S.S.D. .9.6.0. .E.V.O. .5.0.0.G.B........BO..NO........o.S.T.2.0.0.0.D.M.0.0.6.-.2.D.M.1.6.4............
........A...........................>..Gd-.;.A..MQ..L. . . . . . . . . . . . .4.Z.9.Z.E.J.Q.3........BO..NO........o.S.T.2.0.0.0.D.M.0.0.6.-.2.D.M.1.6.4......
..............A...........................>..Gd-.;.A..MQ..L. . . . . . . . . . . . .4.Z.9.Z.5.M.8.D........BO..NO........o.S.a.m.s.u.n.g. .S.S.D. .8.5.0. .E.V.O. .5.0.0.G.B....................A...........................>..Gd-.;.A..MQ..L.3.S.3.
R.F.N.J.0.2.9.5.8.6.1. .A. . . . ........BO..NO........f.G.e.n.e.r.i.c.-.U.S.B.3...0. .C.R.W.-.S.D./.M.S.1...0.0....................A..................................
...Gd-.;.A..MQ..L.2.0.1.6.0.1.0.6.0.9.2.4........BO..NO........f.G.e.n.e.r.i.c.-.
U.S.B.3...0. .C.R.W.-.S.M./.x.D.1...0.0....................A..................................
...Gd-.;.A..MQ..L.2.0.1.6.0.1.0.6.0.9.2.4........BO..NO........f.G.e.n.e.r.i.c.-.
U.S.B.3...0. .C.R.W.-.S.D. .1...0.0....................A.....................................Gd-.;.A..MQ..L.
2.0.1.6.0.1.0.6.0.9.2.4........BO..NO........f.G.e.n.e.r.i.c.-.U.S.B.3...0. .C.R.W.-.M.S. .1...0.0....................A.....................................Gd-.;.A..MQ..L.
2.0.1.6.0.1.0.6.0.9.2.4........BO..NO........a.G.e.n.e.r.i.c.-.U.S.B.3...0. .C.R.W.-.C.F./.M.D.1...0.0....................A................................Gd-.
;.A..MQ..L.2.0.1.6.0.1.0.6.0.9.2.4........BO
Boot0001  Windows Boot Manager   HD(2,GPT,738e2c09-49c9-48cf-a3d7-504a04e25c05,0xfa000,0x31800)/File(\EFI\MICROSOFT\BOOT\BOOTMGFW.
EFI)WINDOWS.........x...B.C.D.O.B.J.E.C.T.=.{.9.d.e.a.8.6.2.c.-.5.c.d.d.-.4.e.7.0.
-.a.c.c.1.-.f.3.2.b.3.4.4.d.4.7.9.5.}...M................
Boot0002* UEFI:CD/DVD Drive   BBS(129,,0x0)
Boot0003* UEFI:Removable Device   BBS(130,,0x0)
Boot0004  Windows Boot Manager   HD(1,GPT,f1feb360-a7c4-4561-9898-6b072cbb6dd6,0x800,0x400000)/File(\EFI\MICROSOFT\BOOT\BOOTMGFW.
EFI)..BO
Boot0005* UEFI:Network Device   BBS(131,,0x0)
Boot0006* ubuntu   HD(1,GPT,f1feb360-a7c4-4561-9898-6b072cbb6dd6,0x800,0x400000)/File(\EFI\UBUNTU\GRUBX64.
EFI)
Boot0007  ubuntu   HD(2,GPT,738e2c09-49c9-48cf-a3d7-504a04e25c05,0xfa000,0x31800)/File(\EFI\UBUNTU\SHIMX64.
EFI)..BO
Boot0008  ubuntu   HD(1,GPT,f1feb360-a7c4-4561-9898-6b072cbb6dd6,0x800,0x400000)/File(\EFI\UBUNTU\SHIMX64.
EFI)..BO




In uefi only the boot option "960 evo Ubuntu" is selected, no other.


I'm surprised grub didn't add a UEFI boot entry when you tried to install it from Gentoo. It must have failed somewhere. It just uses efibootmgr to add another entry that points to a different grub efi stub.

[Moderator edit: broke long whitespace-free lines in code tags to fix thread layout. -Hu]
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PeterNL
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PostPosted: Tue Apr 03, 2018 2:50 pm    Post subject: Reply with quote

I have not installed Gentoo yet.
This is system preperation pre-Gentoo.

I have got a bit further.

Succes: adding the entry in uefi
Code:

efibootmgr -c -d /dev/nvme0n1 -p 1 -L "MyGrub Samsung 960" -l "/EFI/Boot/bootx64.efi"


Succes: installing and configuring grub
Code:

sudo mount /dev/nvme0n1p1 /mnt/nvme0n1p1/
sudo grub-install --target=x86_64-efi --efi-directory=/mnt/nvme0n1p1/EFI/
sudo grub-mkconfig -o /mnt/nvme0n1p1/EFI/Boot/grub/grub.cfg


After adding the drive name in the boot entries inside the /boot/grub/grub.cfg files on nvme and sda i could monitor which grub was actually booted.
It kept booting the grub on sda while in uefi the "MyGrub Samsung 960" was selected. Conclusion the efi file pointed at the wrong grub installation on the sda drive.
After renaming and copying the *.efi files the result remained the same.
I discovered the problem I had was that i was unable to configure the (encrypted or so) /EFI/Boot/bootx86.efi file.

Now i hope i got it:
Code:
 
bootctl --path /boot/efi install


Hopefully i can (finally) configure and install the efi file to boot the grub on nvme! Then i'm finished.
How does bootctl work? The *.efi files are crypted so install and configure would need an "bootctl update" which is not in:
https://wiki.gentoo.org/wiki/Systemd-boot

Would this do the trick?

1. bootctl --path mnt/nvme0n1p1/efi/boot/grubx64.efi install
2. configure files to boot nvme.. i.e.
/mnt/nvme0n1p1/boot/efi/loader/loader.conf
Code:

default mygrub
timeout 0

/mnt/nvme0n1p1/boot/efi/loader/entries/mygrub.conf

Code:

title MyGrub
linux /vmlinuz     # Do i need a kernel to boot grub?? 8-s
options root=/dev/nvme0n1p1


3. "bootctl update" or "bootctl --path=esp update"
This so that finally the correct grubx64.efi file is created and configured so that it will boot grub on my /dev/nvme0n1p1

I haven't tried. I think this is the solution.
So how do i point
"/mnt/nvme0n1p1/EFI/Boot/bootx64.efi"
to boot "/dev/nvme0n1p1"?
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PeterNL
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PostPosted: Tue Apr 03, 2018 3:44 pm    Post subject: Reply with quote

What about?

Code:

sudo grub-install --removable --target=x86_64-efi --efi-directory=/boot/efi/

The remobable flag makes the command generate an .efi file according to on of the answers on:

https://ubuntuforums.org/showthread.php?t=2342019
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PostPosted: Wed Apr 04, 2018 10:25 am    Post subject: Reply with quote

It should work without --removable, EFI system partition need to be mounted at /boot/efi. No need for sudo if you use SystemRescueCD.
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