[Bug 1878378] Re: add_mountroot_fail_hook uses wrong target name

[Benjamin Drung]

*** This bug is a duplicate of bug 1871154 ***
    https://bugs.launchpad.net/bugs/1871154

This particular bug has already been reported and is a duplicate of bug
#1871154, so it is being marked as such. Please look at the other bug
report to see if there is any missing information that you can provide,
or to see if there is a workaround for the bug. Additionally, any
further discussion regarding the bug should occur in the other report.
Feel free to continue to report any other bugs you may find.

** This bug has been marked a duplicate of bug 1871154
   Error message displayed during boot (mountroot hook, premount)

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https://bugs.launchpad.net/bugs/1878378

Title:
  add_mountroot_fail_hook uses wrong target name

Status in initramfs-tools package in Ubuntu:
  New

Bug description:
  Upon boot of a system that uses LVM2 you get the message:

  ln: /tmp/mountroot-fail-hooks.d//scripts/init-premount/lvm2: No such
  file or directory

  This is because the script /usr/share/initramfs-tools/scripts/init-
  premount/lvm2 uses the add_mountroot_fail_hook function from
  /usr/share/initramfs-tools/scripts/functions (which is sources right
  before), but this function contains a bug that takes the full path of
  the source script instead of the given argument as name for the
  target.

  Version of Ubuntu: 20.04 LTS
  Version of initramfs-tools: 0.136ubuntu6

  For a live installation, this may be fixed with (all on one line):

  sudo sed -i 's,\(ln -s "\$0" /tmp/mountroot-fail-
  hooks\.d/\)"\$0",\1"\$1",' /usr/share/initramfs-
  tools/scripts/functions && sudo update-initramfs -u

  and verified by checking that this message now disappears on next
  boot:

  sudo journalctl -b | grep mountroot-fail-hooks

  A proposed patch for the source distribution is attached.

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