[Bug 1776622] Re: snapd on cosmic never finishes installing/updating. Can't install any other updates.

[Michael Vogt]

Thanks for your bugreport. The output of "ps afx" when this hangs would
be great to get an idea why the dpkg process blocks.

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

Title:
  snapd on cosmic never finishes installing/updating. Can't install any
  other updates.

Status in snapd:
  Confirmed
Status in snapd package in Ubuntu:
  Confirmed
Status in systemd package in Ubuntu:
  Confirmed

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

  ---

  ProblemType: Bug
  DistroRelease: Ubuntu 18.10
  Package: snapd 2.33+18.10ubuntu3
  ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
  Uname: Linux 4.15.0-22-generic x86_64
  ApportVersion: 2.20.10-0ubuntu3
  Architecture: amd64
  Date: Wed Jun 13 16:49:20 2018
  InstallationDate: Installed on 2018-05-26 (17 days ago)
  InstallationMedia: Ubuntu 18.10 "Cosmic Cuttlefish" - Alpha amd64 (20180525)
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_AU.UTF-8
   SHELL=/bin/bash
  SourcePackage: snapd
  UpgradeStatus: No upgrade log present (probably fresh install)

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