[Bug 1866377] Re: update-initramfs fails on plymouth hook due to missing target dir

[Richard Baka]

1. The deletion of the plymouth packages is a correct workaround however
that is not a correct fix. The fix will come with a package upgrade.

2. apt purge --reinstall (what I wrote) seems to wrok well but it
doesn't. It just do the purge operation and not the reinstall operation.
If this package isn't installed the failure doesn't occur however you
won't have a graphical boot screen (If I know this well).

3. BTW this package is not too important for the system. If I know well
this is just a graphical splash screen.

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Title:
  update-initramfs fails on plymouth hook due to missing target dir

Status in plymouth package in Ubuntu:
  Fix Committed
Status in plymouth source package in Focal:
  Fix Committed

Bug description:
  Testing pre-release Ubuntu-MATE 20.04 updated on Fri 6 Mar 2020

  lsb_release -d
  Description:	Ubuntu Focal Fossa (development branch)
  uname -a
  Linux beluga 5.4.0-14-generic #17-Ubuntu SMP Thu Feb 6 22:47:59 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux

  update-initramfs: Generating /boot/initrd.img-5.4.0-14-generic
  cp: cannot create regular file '/var/tmp/mkinitramfs_npYdVL/usr/share/plymouth/themes/spinner/watermark.png': No such file or direct
  ory
  E: /usr/share/initramfs-tools/hooks/plymouth failed with return 1.
  update-initramfs: failed for /boot/initrd.img-5.4.0-14-generic with 1.
  dpkg: error processing package initramfs-tools (--configure):
   installed initramfs-tools package post-installation script subprocess returned error exit status 1
  Processing triggers for libc-bin (2.30-0ubuntu3) ...
  Errors were encountered while processing:
   initramfs-tools

  [Same error on two different systems]

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