[Bug 1804603] Re: systemd-tmpfiles-setup.service fails on btrfs

[Stanislav Rimsha]

Experiencing same issue on 18.04 desktop with btrfs root filesystem, not
being able to boot anything except emergency mode. Is there any
workaround to boot into functional system?

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Title:
  systemd-tmpfiles-setup.service fails on btrfs

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Bionic:
  New
Status in systemd source package in Cosmic:
  In Progress
Status in systemd source package in Disco:
  Fix Released

Bug description:
  After update to systemd 237-3ubuntu10.9 systemd-tmpfiles-setup.service
  fails with:

  Nov 21 13:44:12 node-blc49 systemd[1]: Starting Create Volatile Files and Directories...
  Nov 21 13:44:12 node-blc49 systemd-tmpfiles[1226]: Failed to create directory or subvolume "/var": Bad file descriptor
  Nov 21 13:44:12 node-blc49 systemd-tmpfiles[1226]: Failed to create directory or subvolume "/home": Bad file descriptor
  Nov 21 13:44:12 node-blc49 systemd-tmpfiles[1226]: Failed to create directory or subvolume "/srv": Bad file descriptor
  Nov 21 13:44:12 node-blc49 systemd[1]: systemd-tmpfiles-setup.service: Main process exited, code=exited, status=1/FAILURE
  Nov 21 13:44:12 node-blc49 systemd[1]: systemd-tmpfiles-setup.service: Failed with result 'exit-code'.
  Nov 21 13:44:12 node-blc49 systemd[1]: Failed to start Create Volatile Files and Directories.

  This happens on btrfs root filesystems in real hardware and on our
  virtualized servers as well. 237-3ubuntu10.6 didnt show this errors
  and going back to 237-3ubuntu10 removes them as well.

  # lsb_release -rd
  Description:    Ubuntu 18.04.1 LTS
  Release:        18.04

  # apt-cache policy systemd
  systemd:
    Installiert:           237-3ubuntu10.9
    Installationskandidat: 237-3ubuntu10.9
    Versionstabelle:
   *** 237-3ubuntu10.9 500
          500 http://de.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu bionic-security/main amd64 Packages
          100 /var/lib/dpkg/status
       237-3ubuntu10 500
          500 http://de.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

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