I'm attempting to upgrade from Ubuntu 23.04 to 23.10, but it fails every time, likely because of ppa problems. I've attached an image that shows the errors I get when I execute "sudo apt update" prior to running the upgrade. I've tried unchecking the offending ppa in the "Software Sources" app, and I've also commented out the ppa in etc/apt/sources.list. But nothing has worked so far. Any ideas?

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I was able to make a little progress by adding the missing pubkeys, so at least that error is gone. But...now I have an "unresolvable problem", see image. It's telling me to use ppa-purge to remove software from a Launchpad PPA. But the only ppa I have checked is this one: https://ppa.launchpadcontent.net/ubu...unar/InRelease

I can certainly remove it, but it seems add to need to remove an official ubuntu ppa. Any thoughts?

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PPA's are hardly official. Just because it's from an official flavor doesn't mean it will work flawlessly. In this case backports are always a risk no matter how much one thinks they shouldn't be. A repository is a cohesive whole that works well together. A backport is outside of that normal repo so it isn't guaranteed to work. In the case of not following the LTS release you have more chances for stuff to go sideways. You need to rethink using backports on a point release, or use LTS and cautiously keep using backports.

You shouldn't need backports for point releases anyway. They aren't very far ahead if at all than the current point release will be at. People get the idea they need the newest stuff. 9 times out of 10 they can't name why. they just want the shiny new version. bites them in the ass most of the time for little to no tangible reason.

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Thanks jmgibson1981. I did try to use ppa-purge to get rid of the offending ppa. But, I got this warning message: "Warning: Could not find package list for PPA: launchpadcontent.net/ubuntubudgie/backports/ubuntu/dists/lunar InRelease". The upgrade to 23.10 still fails.

Got distracted and left this alone for a while. Back at it now, still can't upgrade. Took a look at the apt.log and main.log files.

apt.log
"Broken budgie-desktop-environment:amd64 Depends on budgie-desktop:amd64 < 10.7.1-1ubuntu3 @ii mR > (>= 10.5.2)"

main.log
"ERROR Dist-upgrade failed: 'The package 'update-manager' is marked for removal but it is in the removal deny list.'"

Have googled both of these messages and don't see much regarding 23.04 - 23.10 upgrade. Any thoughts?

Hi, Are you using apt-get, command line?

apt upgrade, updates packages

apt dist-upgrade, inteligently installs system packages (mindfully)

I could be completely wrong, but it won't hurt to try.

Ooops! I'm way off base. I posted before finishing reading. Sorry for the noise.

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Hi GlennsPref, I have tried from the software updater (it reminds me to upgrade) and also from the command line using both apt-get and apt dist-upgrade. I seem to be making some progress, as the mantic repositories now show up in the software updater. The software updater is now telling me I can do a partial upgrade, but it still aborts with an unresolved error.

Just tried sudo apt dist-upgrade and for the first time it showed an immediate error: "The following packages have unmet dependencies:
gnome-remote-desktop : Depends: libmutter-12-0 (>= 44~) but it is not going to be installed
E: Broken packages"

OK...I think I finally beat it into submission by purging a ppa and removing broken packages. It's about 40% installed at the moment, let's see if I can get this thing finalized.

I should have been more precise in my descriptions....I have used "sudo apt upgrade" to successfully update packages. Budgie control center shows that I am running Ubuntu 23.10 and Budgie Desktop 10.7.1 (it did not upgrade to 10.8.2).

But....running "sudo apt dist-upgrade" still results in the following error: "The following packages have unmet dependencies:
gnome-remote-desktop : Depends: libmutter-12-0 (>= 44~) but it is not going to be installed
E: Broken packages"

Tried to update the libmutter dependency, it failed.

I eventually did get Ubuntu 23.10 and Budgie 10.8 installed but then on reboot/login got the "Failed to start session" message. Did Ctrl-Alt-F1 to command line and tried multiple things, including re-install of the budgie desktop. Nada. But a common theme emerged: "Unable to locate package" was a result of almost everything I tried.

That finally pierced the void between my ears and I re-added Main, Univers, Restricted and Multiverse repositories. Ran a re-install of budgie-desktop and Viola! Started without a hitch on reboot and my old desktop is back, all is good. I'm running 23.10 and 10.8. Thanks for your help!

When you are updating to a new release you should comment out any ppa entries in the /etc/apt/sources.list file and also check the sources.list.d directory for additional ppa software. If this is not done, it is likely a user will see a message indicating no release file for that specific software.