[Bug 1861231] [NEW] Update manager converts chromium to snap, pauses "pending restart"

[Reuben Firmin]

Public bug reported:

I ran update-manager to go from 18.04 to 19.10. It wanted to convert
chromium-browser to a snap. Apparently after it finished installing, it
then halted and displayed the message as attached in the photo. After 45
minutes I held my nose and rebooted, and luckily was able to recover the
rest of the installation via apt & dpkg, but this could just as easily
have bricked the system.

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.36
ProcVersionSignature: Ubuntu 4.15.0-74.84-generic 4.15.18
Uname: Linux 4.15.0-74-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.9
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: KDE
Date: Tue Jan 28 17:38:30 2020
InstallationDate: Installed on 2019-03-28 (306 days ago)
InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/usr/bin/fish
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.update-manager.release-upgrades: 2019-07-20T14:38:38.104504

** Affects: ubuntu-release-upgrader (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug bionic dist-upgrade

** Attachment added: "IMG_20200126_114401.jpg"
   https://bugs.launchpad.net/bugs/1861231/+attachment/5323652/+files/IMG_20200126_114401.jpg

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https://bugs.launchpad.net/bugs/1861231

Title:
  Update manager converts chromium to snap, pauses "pending restart"

Status in ubuntu-release-upgrader package in Ubuntu:
  New

Bug description:
  I ran update-manager to go from 18.04 to 19.10. It wanted to convert
  chromium-browser to a snap. Apparently after it finished installing,
  it then halted and displayed the message as attached in the photo.
  After 45 minutes I held my nose and rebooted, and luckily was able to
  recover the rest of the installation via apt & dpkg, but this could
  just as easily have bricked the system.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: ubuntu-release-upgrader-core 1:18.04.36
  ProcVersionSignature: Ubuntu 4.15.0-74.84-generic 4.15.18
  Uname: Linux 4.15.0-74-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.9
  Architecture: amd64
  CrashDB: ubuntu
  CurrentDesktop: KDE
  Date: Tue Jan 28 17:38:30 2020
  InstallationDate: Installed on 2019-03-28 (306 days ago)
  InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
  PackageArchitecture: all
  ProcEnviron:
   TERM=xterm-256color
   PATH=(custom, no user)
   XDG_RUNTIME_DIR=<set>
   LANG=en_US.UTF-8
   SHELL=/usr/bin/fish
  SourcePackage: ubuntu-release-upgrader
  Symptom: ubuntu-release-upgrader
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.update-manager.release-upgrades: 2019-07-20T14:38:38.104504

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