[Bug 1548254] Re: Failed 15.10 -> 16.04 upgrade

[Launchpad Bug Tracker]

This bug was fixed in the package plymouth - 0.9.2-3ubuntu11

---------------
plymouth (0.9.2-3ubuntu11) xenial; urgency=medium

  * debian/local/plymouth.hook:
    - Fix kernel updates on some weird configurations where there is
      a plymouth theme alternative setup pointing to a non existing theme.
      (LP: #1532355, #1548254)

 -- Didier Roche <didrocks at ubuntu.com>  Wed, 16 Mar 2016 15:25:50 +0100

** Changed in: plymouth (Ubuntu)
       Status: Confirmed => Fix Released

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https://bugs.launchpad.net/bugs/1548254

Title:
  Failed 15.10 -> 16.04 upgrade

Status in plymouth package in Ubuntu:
  Fix Released

Bug description:
  When doing a 15.10 -> 16.04 I ran into the following bug:
  """
  [..]
  Setting up linux-image-4.4.0-6-generic (4.4.0-6.21) ...^M
  Running depmod.^M
  update-initramfs: deferring update (hook will be called later)^M
  Examining /etc/kernel/postinst.d.^M
  run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.4.0-6-generic /boot/vmlinuz-4.4.0-6-generic^M
  N: Ignoring file '50unattended-upgrades.ucf-dist' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extension^M
  N: Ignoring file '50unattended-upgrades.ucf-dist' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extension^M
  N: Ignoring file '50unattended-upgrades.ucf-dist' in directory '/etc/apt/apt.conf.d/' as it has an invalid filename extension^M
  run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.4.0-6-generic /boot/vmlinuz-4.4.0-6-generic^M
  update-initramfs: Generating /boot/initrd.img-4.4.0-6-generic^M
  sed: can't read /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth: No such file or directory^M
  E: /usr/share/initramfs-tools/hooks/plymouth failed with return 2.^M
  update-initramfs: failed for /boot/initrd.img-4.4.0-6-generic with 2.^M
  run-parts: /etc/kernel/postinst.d/initramfs-tools exited with return code 2^M
  Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/linux-image-4.4.0-6-generic.postinst line 1027.^M
  dpkg: error processing package linux-image-4.4.0-6-generic (--configure):^M
   subprocess installed post-installation script returned error exit status 2^M
  [..]
  """
  and indeed, in plymouth-theme-ubuntu-text/xenial,now there is no /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth on a /usr/share/plymouth/themes/ubuntu-text/ubuntu-text.plymouth*.in*

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