Package: finit-sysv Version: 3.2~rc3-2 Severity: important Justification: can't load init system after install of finit-sysv
-- System Information: Debian Release: bullseye/sid APT prefers testing APT policy: (500, 'testing') Architecture: amd64 (x86_64) Kernel: Linux 5.10.0-3-amd64 (SMP w/1 CPU thread) Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968) (ignored: LC_ALL set to C), LANGUAGE not set Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled After installing finit-sysv version 3.2~rc3-2 (and dependencies), the result is a significantly broken system - notably can't load init system // example/synopsis - my comments added on lines starting with "//" // Starting from a relatively base/default bullseye 11 amd64 // with systemd-sysv already installed (same seems to also occur if // other init systems are first installed then finit-sysv is installed) # cat /etc/debian_version bullseye/sid # uname -m x86_64 # apt-get -y --no-install-recommends install finit-sysv // ... installation itself gives no errors // Note that we end up with /sbin/init as symlink to pathname /finit // that doesn't exist: # ls -l /sbin/init lrwxrwxrwx 1 root root 6 Jan 4 09:15 /sbin/init -> /finit # ls -l /finit ls: cannot access '/finit': No such file or directory // We do, however, have /sbin/finit: # ls -l /sbin/finit -rwxr-xr-x 1 root root 150248 Jan 4 09:15 /sbin/finit # dpkg -S /sbin/finit finit: /sbin/finit // Haven't rebooted yet, so still running old init system, // so we use appropriate reboot for that: # ls -l /proc/1/exe lrwxrwxrwx 1 root root 0 Feb 23 09:58 /proc/1/exe -> /lib/systemd/systemd # systemctl reboot // After reboot, however, init system fails to load // ... Begin: Running /scripts/init-bottom ... done. run-init: /sbin/init: No such file or directory Target filesystem doesn't have requested /sbin/init. run-init: /sbin/init: No such file or directory run-init: /etc/init: Permission denied run-init: /bin/init: No such file or directory /bin/sh: 0: can't access tty; job control turned off // This leaves us without a loaded init, we examine and attempt // fix or workaround: # ls -l /sbin/init lrwxrwxrwx 1 root root 6 Jan 4 09:15 /sbin/init -> /finit # ls -l /finit ls: cannot access '/finit': No such file or directory # fgrep ro, /proc/mounts /dev/vda1 / ext4 ro,relatime 0 0 # mount -o remount,rw / # cd /sbin # ls -l finit -rwxr-xr-x 1 root root 150248 Jan 4 09:15 finit # ls -ld init lrwxrwxrwx 1 root root 6 Jan 4 09:15 init -> /finit // we attempt workaround: # ln -sf finit init # ls -l init finit -rwxr-xr-x 1 root root 150248 Jan 4 09:15 finit lrwxrwxrwx 1 root root 5 Feb 23 10:07 init -> finit // we then proceed with sync and reboot: # cd / # sync&&sync # mount -o remount,ro / # reboot -f -f // We then end up with: Begin: Running /scripts/local-bottom ... done. Begin: Running /scripts/init-bottom ... done. [ 3.162731] Not activating Mandatory Access Control as /sbin/tomoyo-init does not exist. [ 3.177559] finit[1]:main():Failed mounting /sysfs: No such file or directory [ 3.184566] finit[1]:load_plugins():Failed, cannot open plugin directory /usr/lib/x86_64-linux-gnu/finit/plugins: No such file or directory [ 3.191312] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input2 [ 3.213120] EXT4-fs (vda1): re-mounted. Opts: errors=remount-ro [ 3.221124] Adding 1046524k swap on /dev/vda5. Priority:-2 extents:1 across:1046524k FS [ 4.437246] pcieport 0000:00:02.6: pciehp: Slot(0-6): No device found // That appeared to get us past the /finit path issue, // but now we've failed on /sysfs issue (that pathname doesn't exist). // At this point, we've got netiher login nor shell, so we reset, // and boot with init=/bin/sh to examine and attempt workaround(s): # mount -o remount,rw / # mount -a # ls -l /proc/1/exe lrwxrwxrwx 1 root root 0 Feb 23 10:18 /proc/1/exe -> /bin/dash # ls -ld /sys* dr-xr-xr-x 13 root root 0 Feb 23 10:18 /sys // we try symbolic link, in hopes that may suffice, guessing it may be // looking for sysfs to be mounted upon or accessible via /sysfs # (cd / && ln -s sys sysfs) # ls -ld /sys* dr-xr-xr-x 13 root root 0 Feb 23 10:18 /sys lrwxrwxrwx 1 root root 3 Feb 23 10:18 /sysfs -> sys // we then proceed to reboot: # sync&&sync # mount -o remount,ro / # reboot -f -f // and end up stuck at same place: Begin: Running /scripts/local-bottom ... done. Begin: Running /scripts/init-bottom ... done. [ 3.163861] Not activating Mandatory Access Control as /sbin/tomoyo-init does not exist. [ 3.175776] finit[1]:main():Failed mounting /sysfs: No such file or directory [ 3.181364] finit[1]:load_plugins():Failed, cannot open plugin directory /usr/lib/x86_64-linux-gnu/finit/plugins: No such file or directory [ 3.197055] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input2 [ 3.220225] EXT4-fs (vda1): re-mounted. Opts: errors=remount-ro [ 3.231206] Adding 1046524k swap on /dev/vda5. Priority:-2 extents:1 across:1046524k FS [ 4.419100] pcieport 0000:00:02.6: pciehp: Slot(0-6): No device found // again, without login or shell // we again reset to reboot and boot with init=/bin/sh # mount -o remount,rw / // we try alternative, removing our /sysfs symbolic link we created: # rm /sysfs // and replacing it with empty directory, matching perms/ownerships to /sys: # mkdir /sysfs # ls -ld /sys* dr-xr-xr-x 13 root root 0 Feb 23 10:20 /sys drwxr-xr-x 2 root root 4096 Feb 23 10:20 /sysfs # chmod u-w /sysfs # ls -ld /sys* dr-xr-xr-x 13 root root 0 Feb 23 10:20 /sys dr-xr-xr-x 2 root root 4096 Feb 23 10:20 /sysfs // we then again proceed with reboot: # sync&&sync # mount -o remount,ro / # reboot -f -f Begin: Running /scripts/init-bottom ... done. [ 3.191286] Not activating Mandatory Access Control as /sbin/tomoyo-init does not exist. [ 3.202393] finit[1]:main():Failed mounting /sysfs: No such file or directory [ 3.208346] finit[1]:load_plugins():Failed, cannot open plugin directory /usr/lib/x86_64-linux-gnu/finit/plugins: No such file or directory [ 3.238045] EXT4-fs (vda1): re-mounted. Opts: errors=remount-ro [ 3.243444] input: ImExPS/2 Generic Explorer Mouse as /devices/platform/i8042/serio1/input/input2 [ 3.255421] Adding 1046524k swap on /dev/vda5. Priority:-2 extents:1 across:1046524k FS [ 4.481832] pcieport 0000:00:02.6: pciehp: Slot(0-6): No device found // we again end up stuck with no login and no shell // at this point we abandon our attempts, reset and revert: // we again reset to reboot and boot with init=/bin/sh # mount -o remount,rw / # mount -a # apt-get -y install systemd-sysv // ... # dpkg -l systemd-sysv ii systemd-sysv 247.3-1 amd64 system and service manager - SysV # sync&&sync # mount -o remount,ro / # reboot -f -f // and then we're back to things being okay after having switched init // system back to systemd-sysv // Also, the other init systems: // runit-init // systemd-sysv // sysvinit-core // appear to install and run okay, whereas installing finit-sysv // appears to lead to serious problems, and wasn't able to easily find // suitable correction or workaround for finit-sysv
