Lubuntu 24.10 desktop enviroment does not start after upgrade

I upgraded Lubuntu from 24.04 to 24.10 and now I can not login. After I enter password screen chances to black for a second and then comes back to login window.

I think during upgrade there was an error message that some check sum does not match during download, but I could not read it before it disappeared.

The only idea I tested so far was to make sure that there is enough space on the drive. Any suggestions where and how to locate a problem?

Is there sufficient space in $HOME to allow a GUI login?

I think during upgrade there was an error message that some check sum does not match during download, but I could not read it before it disappeared.

Even if an error message quickly scrolls by, and you don’t get time to read it, at the end of the process you’ll have most of that detail repeated allowing you to review it again, or at least get a summary of it (also allowing you to scan backwards too, if your buffer is large enough to go backwards). I’d want to explore that, and what message you actually saw.

If there was an error message I’d not yet fully researched & ensured it was of no value; I wouldn’t likely attempt to login via a GUI, but limit myself to text terminal, and explore the state of your system. If you login at terminal, how does your system report itself? as 24.04 (noble)? or as 24.10 (oracular)? If you sudo apt update are all expected lines present? none missing? and no warnings or error messages? (don’t forget to look for missing lines). If that output looks good and exactly as I expect it to appear, I’d likely sudo apt full-upgrade and see what happens there? Are any packages reported as being available to upgrade? (as there should be none if processes completed) If there are, or any other error, the messages you get should provide clues as to where to go (eg. you might get told to run apt -f install, or dpkg-reconfigure.. etc, if so do as you’re told) and repeat until sudo apt update and then sudo apt full-upgrade report nothing more is required… After which you can reboot & try a normal/GUI login.

If you see any error message(s) or anything that looks wrong, I’d likely not proceed further forward, until you’ve ruled out potential problems, as I’d prefer to resolve issues before doing anything that could complicate things (a GUI login is more involved & can thus create extra issues, even if only minor - text terminal is rarely risky unless you’re careless with your commands). My first login after a release-upgrade is usually text terminal anyway.

2 Likes

Version is 24.10 oracular
apt-get update runs properly
apt-get upgrade has only 1 message
occt-misc kept back
No error messages.

I installed freecad some time ago. This can be one of possible reason for the desktop environment not working. I removed it together with package occt-misc. Now I no longer get even login window.

Fixed:
apt-get reinstall lxqt --fix-missing

2 Likes

Congratulations for solving the log-in loop issue!
For readers of this thread also having this problem the following article may be helpful:

1 Like