[Bug 2077232] Re: Security update 42.9-0ubuntu2.2 uninstalls GDM

[Steve Langasek]

i386 has been enabled by default on amd64 for quite some time.

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https://bugs.launchpad.net/bugs/2077232

Title:
  Security update 42.9-0ubuntu2.2 uninstalls GDM

Status in gnome-shell package in Ubuntu:
  Fix Committed
Status in gnome-software package in Ubuntu:
  New
Status in update-manager package in Ubuntu:
  New
Status in gnome-shell source package in Jammy:
  Won't Fix
Status in gnome-software source package in Jammy:
  New
Status in update-manager source package in Jammy:
  New
Status in gnome-shell source package in Noble:
  Won't Fix
Status in gnome-software source package in Noble:
  New
Status in update-manager source package in Noble:
  New
Status in gnome-shell source package in Oracular:
  Fix Committed
Status in gnome-software source package in Oracular:
  New
Status in update-manager source package in Oracular:
  New

Bug description:
  After running the Software Updater app, the GUI disappears and I only
  have terminal access. The cause seems to be gnome-shell-common
  42.9-0ubuntu2.2 being marked as incompatible with gdm3.

  cat /var/log/apt/history.log
  ```
  ...
  Start-Date: 2024-08-16  16:05:36
  Commandline: packagekit role='update-packages'
  Install: notification-daemon:amd64 (3.20.0-4build1, automatic), policykit-1-gnome:amd64 (0.105-7ubuntu3, automatic)
  Upgrade: gnome-shell-common:amd64 (42.9-0ubuntu2.1, 42.9-0ubuntu2.2)
  Remove: gnome-shell:amd64 (42.9-0ubuntu2.1), ubuntu-desktop:amd64 (1.481.3), gdm3:amd64 (42.0-1ubuntu7.22.04.4), gnome-shell-extension-desktop-icons-ng:amd64 (43-2ubuntu1), gnome-shell-extension-appindicator:amd64 (42-2~fakesync1), chrome-gnome-shell:amd64 (10.1-5), ubuntu-session:amd64 (42.0-1ubuntu2), gnome-shell-extension-manager:amd64 (0.3.0-0ubuntu2.1), gnome-shell-extension-ubuntu-dock:amd64 (72~ubuntu5.22.04.2.1), ubuntu-desktop-minimal:amd64 (1.481.3)
  End-Date: 2024-08-16  16:05:39
  ...
  ```

  apt-cache policy gnome-shell gnome-shell-common
  ```
  gnome-shell:
    Installed: 42.9-0ubuntu2.1
    Candidate: 42.9-0ubuntu2.1
    Version table:
   *** 42.9-0ubuntu2.1 500
          500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
          500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
          100 /var/lib/dpkg/status
       42.0-2ubuntu1 500
          500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
  gnome-shell-common:
    Installed: 42.9-0ubuntu2.1
    Candidate: 42.9-0ubuntu2.2
    Version table:
       42.9-0ubuntu2.2 500
          500 http://security.ubuntu.com/ubuntu jammy-security/main i386 Packages
   *** 42.9-0ubuntu2.1 500
          500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main amd64 Packages
          500 http://us.archive.ubuntu.com/ubuntu jammy-updates/main i386 Packages
          500 http://security.ubuntu.com/ubuntu jammy-security/main amd64 Packages
          100 /var/lib/dpkg/status
       42.0-2ubuntu1 500
          500 http://us.archive.ubuntu.com/ubuntu jammy/main amd64 Packages
          500 http://us.archive.ubuntu.com/ubuntu jammy/main i386 Packages
  ```

  apt install --simulate gnome-shell-common=42.9-0ubuntu2.2
  ```
  ...
  The following packages will be REMOVED:
    chrome-gnome-shell gdm3 gnome-shell gnome-shell-extension-appindicator gnome-shell-extension-desktop-icons-ng gnome-shell-extension-manager gnome-shell-extension-ubuntu-dock ubuntu-desktop
    ubuntu-desktop-minimal ubuntu-session
  ...
  ```

  apt install --simulate -o Debug::pkgProblemResolver=true gnome-shell-common=42.9-0ubuntu2.2
  ```
  ...
  Starting pkgProblemResolver with broken count: 9
  Starting 2 pkgProblemResolver with broken count: 9
  Investigating (0) ubuntu-session:amd64 < 42.0-1ubuntu2 @ii mK Ib >
  Broken ubuntu-session:amd64 Depends on gnome-shell:amd64 < 42.9-0ubuntu2.1 @ii pmR > (>= 3.37.91)
    Considering gnome-shell:amd64 8 as a solution to ubuntu-session:amd64 14
    Added gnome-shell:amd64 to the remove list
  Investigating (0) gnome-shell-extension-appindicator:amd64 < 42-2~fakesync1 @ii mK Ib >
  Broken gnome-shell-extension-appindicator:amd64 Depends on gnome-shell:amd64 < 42.9-0ubuntu2.1 @ii pmR > (>= 3.33)
    Considering gnome-shell:amd64 14 as a solution to gnome-shell-extension-appindicator:amd64 5
    Removing gnome-shell-extension-appindicator:amd64 rather than change gnome-shell:amd64
  Investigating (0) gnome-shell-extension-desktop-icons-ng:amd64 < 43-2ubuntu1 @ii mK Ib >
  Broken gnome-shell-extension-desktop-icons-ng:amd64 Depends on gnome-shell:amd64 < 42.9-0ubuntu2.1 @ii pmR > (>= 3.38)
    Considering gnome-shell:amd64 14 as a solution to gnome-shell-extension-desktop-icons-ng:amd64 5
    Removing gnome-shell-extension-desktop-icons-ng:amd64 rather than change gnome-shell:amd64
  Investigating (0) gnome-shell-extension-ubuntu-dock:amd64 < 72~ubuntu5.22.04.2.1 @ii mK Ib >
  Broken gnome-shell-extension-ubuntu-dock:amd64 Depends on gnome-shell:amd64 < 42.9-0ubuntu2.1 @ii pmR > (< 43)
    Considering gnome-shell:amd64 14 as a solution to gnome-shell-extension-ubuntu-dock:amd64 5
    Removing gnome-shell-extension-ubuntu-dock:amd64 rather than change gnome-shell:amd64
  Investigating (0) gdm3:amd64 < 42.0-1ubuntu7.22.04.4 @ii mK Ib >
  Broken gdm3:amd64 Depends on gnome-shell:amd64 < 42.9-0ubuntu2.1 @ii pmR > (>= 3.37.90)
    Considering gnome-shell:amd64 14 as a solution to gdm3:amd64 5
    Removing gdm3:amd64 rather than change gnome-shell:amd64
  Investigating (0) ubuntu-desktop-minimal:amd64 < 1.481.3 @ii mK Ib >
  Broken ubuntu-desktop-minimal:amd64 Depends on gdm3:amd64 < 42.0-1ubuntu7.22.04.4 @ii mR >
    Considering gdm3:amd64 5 as a solution to ubuntu-desktop-minimal:amd64 3
    Removing ubuntu-desktop-minimal:amd64 rather than change gdm3:amd64
  Investigating (0) ubuntu-desktop:amd64 < 1.481.3 @ii mK Ib >
  Broken ubuntu-desktop:amd64 Depends on gdm3:amd64 < 42.0-1ubuntu7.22.04.4 @ii mR >
    Considering gdm3:amd64 5 as a solution to ubuntu-desktop:amd64 1
    Removing ubuntu-desktop:amd64 rather than change gdm3:amd64
  Investigating (0) chrome-gnome-shell:amd64 < 10.1-5 @ii mK Ib >
  Broken chrome-gnome-shell:amd64 Depends on gnome-shell:amd64 < 42.9-0ubuntu2.1 @ii pmR >
    Considering gnome-shell:amd64 14 as a solution to chrome-gnome-shell:amd64 0
    Removing chrome-gnome-shell:amd64 rather than change gnome-shell:amd64
  Investigating (0) gnome-shell-extension-manager:amd64 < 0.3.0-0ubuntu2.1 @ii mK Ib >
  Broken gnome-shell-extension-manager:amd64 Depends on gnome-shell:amd64 < 42.9-0ubuntu2.1 @ii pmR >
    Considering gnome-shell:amd64 14 as a solution to gnome-shell-extension-manager:amd64 0
    Removing gnome-shell-extension-manager:amd64 rather than change gnome-shell:amd64
  Investigating (1) ubuntu-session:amd64 < 42.0-1ubuntu2 @ii mK Ib >
  Broken ubuntu-session:amd64 Depends on gnome-shell:amd64 < 42.9-0ubuntu2.1 @ii pmR > (>= 3.37.91)
    Considering gnome-shell:amd64 14 as a solution to ubuntu-session:amd64 14
    Removing ubuntu-session:amd64 rather than change gnome-shell:amd64
  Done
  ...
  ```

  lsb_release -rd
  ```
  Description:	Ubuntu 22.04.4 LTS
  Release:	22.04
  ```

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