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  1. RHEL
  2. RHEL-17164

System cannot boot when usr is a separate file system with latest systemd-219-78.el7_9.8

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      What were you trying to do that didn't work?

      All systems configured with a dedicated /usr cannot boot anymore after updating systemd to systemd-219-78.el7_9.8.

      Root cause is a bad mount unit generation done by systemd-fstab-generator:

      sysroot-sysroot-usr.mount gets generated instead of sysroot-usr.mount.

               Mounting /sysroot/sysroot/usr...
      [FAILED] Failed to mount /sysroot/sysroot/usr.
      See 'systemctl status sysroot-sysroot-usr.mount' for details.
      [DEPEND] Dependency failed for Initrd File Systems.
       :
      [    1.781938] systemd[1]: No /sbin/init, trying fallback
      [    1.782970] systemd[1]: Failed to execute /bin/sh, giving up: No such file or directory
      
      :/# cat /run/systemd/generator/sysroot-sysroot-usr.mount 
      # Automatically generated by systemd-fstab-generator
      
      [Unit]
      SourcePath=/sysroot/etc/fstab
      Documentation=man:fstab(5) man:systemd-fstab-generator(8)
      Before=initrd-fs.target
      
      [Mount]
      What=/dev/mapper/rhel-usr
      # Canonicalized from /sysroot/usr
      Where=/sysroot/sysroot/usr
      Type=xfs
      

      This seems to have been introduced by Patch 0853-fstab-generator-Chase-symlinks-where-possible-6293.patch.

      Please provide the package NVR for which bug is seen:

      systemd-219-78.el7_9.8

      How reproducible:

      Always

      Steps to reproduce

      1. Install a system with dedicated /usr
      2. Update it to latest systemd
      3. Reboot

      Expected results

      Boots fine

      Actual results

      Dies

              rhn-support-sbroz Stepan Broz
              rhn-support-rmetrich Renaud Métrich
              Stepan Broz Stepan Broz
              Frantisek Sumsal Frantisek Sumsal
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                Created:
                Updated:
                Resolved: