[Bug 1953470] [NEW] VM fails to reach user session after dist upgrade from focal to jammy,

[Olivier Tilloy]

Public bug reported:

I just verified that bug #1951096 is fixed by dist-upgrading a fully up-
to-date focal amd64 VM to jammy, but after rebooting I'm getting a
completely blank (aubergine) screen, and I cannot even switch to a VT
using the usual key combinations (Host+F<n> in VirtualBox).

Fortunately that VM had an ssh server running so I was able to ssh into it and get the system journal, which I'm attaching here.
I'm also attaching the dist-upgrade log in case it's useful, and I can provide more info if needed (I'll keep a snapshot of the VM in that broken state).

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

** Attachment added: "journal-b0-focal-impish-dist-upgrade.txt"
   https://bugs.launchpad.net/bugs/1953470/+attachment/5545936/+files/journal-b0-focal-impish-dist-upgrade.txt

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https://bugs.launchpad.net/bugs/1953470

Title:
  VM fails to reach user session after dist upgrade from focal to jammy,

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

Bug description:
  I just verified that bug #1951096 is fixed by dist-upgrading a fully
  up-to-date focal amd64 VM to jammy, but after rebooting I'm getting a
  completely blank (aubergine) screen, and I cannot even switch to a VT
  using the usual key combinations (Host+F<n> in VirtualBox).

  Fortunately that VM had an ssh server running so I was able to ssh into it and get the system journal, which I'm attaching here.
  I'm also attaching the dist-upgrade log in case it's useful, and I can provide more info if needed (I'll keep a snapshot of the VM in that broken state).

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