[Bug 1776622] Re: snapd updates on focal never finish installing. Can't install any other updates.

[Balázs Börcsök]

Daniel, I created a new bug report:
https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/2086471

I added you as a subscriber, assuming that you commented here that
should be relevant to you.

I want to emphasize that this basically broke my production system! The
only luck of mine is that I have not yet migrated my services to be Snap
based. I know I am an individual and the best I can do is donate to the
project, but I would except Ubuntu's LTS versions to be at the very
least trustworthy, especially in their own tech stack like Snaps...

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https://bugs.launchpad.net/bugs/1776622

Title:
  snapd updates on focal never finish installing. Can't install any
  other updates.

Status in snapd:
  Fix Released
Status in snapd package in Ubuntu:
  Fix Released
Status in systemd package in Ubuntu:
  Invalid

Bug description:
  snapd (2.33+18.10ubuntu3) cosmic never finishes installing. Can't
  install any other updates.

  The first time I gave up waiting and killed it. Then...

  $ sudo apt full-upgrade
  E: dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.

  $ sudo dpkg --configure -a
  Setting up snapd (2.33+18.10ubuntu3) ...
  snapd.snap-repair.service is a disabled or a static unit, not starting it.

  << never ends >>

  All the while the snap and snapd process use about 0.3% CPU (which is
  more than usual).

  WORKAROUND:

  sudo killall apt dpkg
  sudo dpkg -r snapd gnome-software-plugin-snap
  sudo apt update
  sudo apt full-upgrade

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