I tested an upgrade today from Ubuntu 16.04 (with plymouth packages from
xenial-proposed and xserver-xorg-core-hwe-16.04 installed) to Ubuntu
18.04. There were no errors during the upgrade process and I was able to
log into a functioning Ubuntu desktop environment after rebooting when
the upgrade was complete.
** Changed in: ubuntu-release-upgrader (Ubuntu Bionic)
Status: Triaged => Fix Released
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https://bugs.launchpad.net/bugs/1749688
Title:
16.04 HWE -> 18.04 = xorg held back (+ partial breakage because of it)
Status in ubuntu-release-upgrader package in Ubuntu:
Fix Released
Status in xorg-lts-transitional package in Ubuntu:
Fix Released
Status in ubuntu-release-upgrader source package in Bionic:
Fix Released
Status in xorg-lts-transitional source package in Bionic:
Fix Released
Bug description:
When upgrading from a 16.04 installation which had HWE (later point
releases) xorg is getting held back as apt is having trouble resolving
the path from xserver-xorg-core-hwe-16.04 to xserver-xorg-core.
In at least one instance I've seen a system from a user POV completely
break because of that as it failed to get any keyboard input. Forcing
xorg to get properly installed fixes any and all issues as expected.
- devel upgrade from xenial to bionic
- restart
- xorg not upgraded
- try to get a hold of tty or repair mode
- sudo apt install dist-upgrade && sudo apt install xorg
- restart
- working system
I am going to attach logs for an ubuntu-desktop system, but I've also
seen this with kubuntu-desktop and the derived neon-desktop. It's a
bit unclear to me why apt is having trouble with the resolution, it
does seem like a fairly serious problem though.
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