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Lors du Boot /dev/null: permission denied[Résolu]
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y351
Tux's lil' helper
Tux's lil' helper


Joined: 21 May 2017
Posts: 112

PostPosted: Fri Oct 16, 2020 10:12 am    Post subject: Lors du Boot /dev/null: permission denied[Résolu] Reply with quote

Bonjour,

Lors du démarrage, j'ai des messages suivants suite à une mise à jour (et des packages, et du noyau) :
Code:

Caching service dependencies ...
/etc/init.d/lvm: line 16: /dev/null: permission denied
/etc/init.d/lvm: line 22: /dev/null: permission denied
/lib/netifrc/sh/functions.sh line 6: /dev/null: Permission denied
Service 'nfsclient' need non existent service 'portmap'
Service 'rpc.imapd' need non existent service 'portmap'
Service 'rpc.statd' need non existent service 'portmap'


Je n'ai pas de service NFS, ni en client ni en serveur.
Je monte poctuellement un partage NFS en tant que client.

Code:

emerge --info

Code:

Portage 3.0.8 (python 3.7.8-final-0, default/linux/amd64/17.1/hardened/selinux, gcc-9.3.0, glibc-2.31-r6, 5.9.0-gentoo x86_64)
=================================================================
System uname: Linux-5.9.0-gentoo-x86_64-Intel-R-_Core-TM-_i7-5557U_CPU_@_3.10GHz-with-gentoo-2.7
KiB Mem:    16268872 total,  10516380 free
KiB Swap:    8388604 total,   8388604 free
Timestamp of repository gentoo: Fri, 16 Oct 2020 00:45:01 +0000
Head commit of repository gentoo: e9d73dceaef86bba1b39e95179fec43ba16b856a
sh bash 5.0_p18
ld GNU ld (Gentoo 2.34 p6) 2.34.0
ccache version 3.7.11 [enabled]
app-shells/bash:          5.0_p18::gentoo
dev-java/java-config:     2.3.1::gentoo
dev-lang/perl:            5.30.3::gentoo
dev-lang/python:          2.7.18-r4::gentoo, 3.6.11-r2::gentoo, 3.7.8-r2::gentoo, 3.8.5::gentoo
dev-util/ccache:          3.7.11::gentoo
dev-util/cmake:           3.17.4-r1::gentoo
dev-util/pkgconfig:       0.29.2::gentoo
sys-apps/baselayout:      2.7::gentoo
sys-apps/openrc:          0.42.1::gentoo
sys-apps/sandbox:         2.18::gentoo
sys-devel/autoconf:       2.13-r1::gentoo, 2.69-r5::gentoo
sys-devel/automake:       1.16.1-r1::gentoo
sys-devel/binutils:       2.34-r2::gentoo
sys-devel/gcc:            9.3.0-r1::gentoo
sys-devel/gcc-config:     2.3.2::gentoo
sys-devel/libtool:        2.4.6-r6::gentoo
sys-devel/make:           4.2.1-r4::gentoo
sys-kernel/linux-headers: 5.4-r1::gentoo (virtual/os-headers)
sys-libs/glibc:           2.31-r6::gentoo
Repositories:

gentoo
    location: /usr/portage
    sync-type: rsync
    sync-uri: rsync://rsync.gentoo.org/gentoo-portage
    priority: -1000
    sync-rsync-extra-opts:
    sync-rsync-verify-jobs: 1
    sync-rsync-verify-metamanifest: yes
    sync-rsync-verify-max-age: 24

local
    location: /usr/local/portage
    masters: gentoo
    priority: 10

ACCEPT_KEYWORDS="amd64"
ACCEPT_LICENSE="@FREE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=native -O2 -fforce-addr -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo"
CXXFLAGS="-march=native -O2 -fforce-addr -pipe"
DISTDIR="/usr/portage/distfiles"
EMERGE_DEFAULT_OPTS="--jobs=4 --load-average=4.0 --keep-going=y --with-bdeps=y --complete-graph"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR"
FCFLAGS="-O2 -pipe"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs buildpkg ccache config-protect-if-modified distlocks ebuild-locks fixlafiles ipc-sandbox merge-sync multilib-strict network-sandbox news parallel-fetch parallel-install preserve-libs protect-owned qa-unresolved-soname-deps sandbox selinux sesandbox sfperms strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe"
GENTOO_MIRRORS="http://local"
LANG="fr_FR.utf8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
MAKEOPTS="-j5"
PKGDIR="/usr/portage/packages"
PORTAGE_CONFIGROOT="/"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git"
PORTAGE_TMPDIR="/var/tmp"
USE="X acl amd64 branding bzip2 chroot crypt cryptsetup elogind ffmpeg gnutls hardened iconv icu ipv6 jpeg libglvnd libtirpc logrotate lzma mmx modplug multilib ncurses nls nptl opengl openmp pam pax_kernel pcre perl pic pie png python readline seccomp secure_delete selinux snmp split-usr sse sse2 ssl ssp symlink tcpd unicode wavpack webrsync-gpg xattr xml xtpax zlib" ABI_X86="64" ADA_TARGET="gnat_2018" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="load memory syslog" CPU_FLAGS_X86="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt sse sse2 sse3 sse4_1 sse4_2 ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="efi-64" INPUT_DEVICES="libinput" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-2 php7-3 php7-4" POSTGRES_TARGETS="postgres10 postgres11" PYTHON_SINGLE_TARGET="python3_7" PYTHON_TARGETS="python2_7 python3_7" QEMU_SOFTMMU_TARGETS="arm x86_64 sparc" QEMU_USER_TARGETS="x86_64" RUBY_TARGETS="ruby25 ruby26" USERLAND="GNU" VIDEO_CARDS="intel i915 fbdev vesa" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account"
Unset:  CC, CPPFLAGS, CTARGET, CXX, INSTALL_MASK, LC_ALL, LINGUAS, PORTAGE_BINHOST, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS


Code:

=================================================================
                        Package Settings
=================================================================

sys-fs/lvm2-2.02.187-r2::gentoo was built with the following:
USE="readline (selinux) thin udev -device-mapper-only -lvm2create_initrd -sanlock -static -static-libs (-systemd)" ABI_X86="(64)"


Vos retours seraient appréciables.
Merci d'avance.


Last edited by y351 on Fri Oct 30, 2020 12:32 pm; edited 1 time in total
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guitou
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Posts: 480
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PostPosted: Fri Oct 16, 2020 2:45 pm    Post subject: Reply with quote

Hello.
Probable que tu aies ecrase ton /dev/null avec un fichier standard...
La littérature en ligne sur le sujet est assez plethorique.
En gros:
Code:

# se debrouiller pour monter la partition racine, puis:
ls -l /dev/null
# si pas conforme
rm /dev/null
mknod -m 666 /dev/null c 1 3


++
Gi)
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y351
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Joined: 21 May 2017
Posts: 112

PostPosted: Fri Oct 16, 2020 3:14 pm    Post subject: Reply with quote

Salut,

Je ne vois pas comment j'ai pu écraser cela...
Sans redémarrer et monter le file system, le fichier existe :
Code:

ll -Z /dev/null
crw-rw-rw-. 1 root root system_u:object_r:null_device_t 1, 3 16 oct.  16:07 /dev/null
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guitou
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PostPosted: Fri Oct 16, 2020 3:24 pm    Post subject: Reply with quote

Re,

Quote:
Je ne vois pas comment j'ai pu écraser cela...

Apparemment, tu ne l'as pas fait, mais c'est toujours possible :)

Du coup, une possibilite, c'est que udev (ou autre) cree le peripherique en cours de demarrage mais pas avant que lvm n'en fasse usage.

++
Gi)
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netfab
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PostPosted: Fri Oct 16, 2020 3:30 pm    Post subject: Reply with quote

Salut,

Peux-tu poster la sortie de :
Code:

$ rc-update
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y351
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Joined: 21 May 2017
Posts: 112

PostPosted: Fri Oct 16, 2020 3:57 pm    Post subject: Reply with quote

A tout harsard, je l'ai recréé :
Code:

rm -f /dev/null
mknod -m 666 /dev/null.tmp c 1 3
mv /dev/null.tmp /dev/null
chcon -u system_u -t null_device_t /dev/null

ll -Z /dev/null
crw-rw-rw-. 1 root root system_u:object_r:null_device_t 1, 3 16 oct.  17:48 /dev/null


Après un reboot : même message...

Code:

rc-update


Code:

                acct |      default
                acpid |      default
             arpwatch |      default
               auditd |      default
               binfmt | boot
             bootmisc | boot
              cgroups |                                 sysinit
               cronie |      default
                 dbus |      default
                devfs |                                 sysinit
              dmcrypt | boot
                dmesg |                                 sysinit
              elogind | boot
                 fsck | boot
                  gpm |      default
             hostname | boot
              hwclock | boot
              keymaps | boot
            killprocs |                        shutdown
    kmod-static-nodes |                                 sysinit
                local |      default nonetwork
           localmount | boot
             loopback | boot
                  lvm | boot
              modules | boot
             mount-ro |                        shutdown
                 mtab | boot
          net.enp0s25 |      default
             netmount |      default
           ntp-client |      default
                 ntpd |      default
              postfix |      default
               procfs | boot
                 root | boot
              rsyslog |      default
         save-keymaps | boot
    save-termencoding | boot
            savecache |                        shutdown
                 swap | boot
               sysctl | boot
                sysfs |                                 sysinit
         termencoding | boot
                 udev |                                 sysinit
         udev-trigger |                                 sysinit
              uptimed |      default
              urandom | boot
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guitou
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PostPosted: Fri Oct 16, 2020 4:06 pm    Post subject: Reply with quote

A tout hasard, que te dit le resultat du ls apres un bind mount de ta partition racine?
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netfab
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PostPosted: Fri Oct 16, 2020 5:38 pm    Post subject: Reply with quote

Peux-tu poster la sortie complète de dmesg, ainsi que ton fichier de configuration kernel, en utilisant pastebin.
Tu as l'air d'avoir des problèmes avec udev sur ton système : systemd-udevd failed with exit code 1
Tu utilises sys-fs/udev et non sys-fs/eudev ?
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y351
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Posts: 112

PostPosted: Thu Oct 29, 2020 4:16 pm    Post subject: Reply with quote

Quote:

Tu utilises sys-fs/udev et non sys-fs/eudev ?

J'ai testé eudev, ce n'est pas mieux.
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y351
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Joined: 21 May 2017
Posts: 112

PostPosted: Fri Oct 30, 2020 12:31 pm    Post subject: Reply with quote

La faute à SELinux. :twisted:
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