On February 2nd, 2016, I did a fresh install of Kubuntu 15.10 64 bit on my laptop (Core 2 Duo, 2GB ram). Install was fine, restarted the system and Kubuntu loaded fine. On logging in, I was prompted by Muon to update the system. To my bad, I did not check the exact packages that it was proposing to change. Importantly, Muon did not inform me that packages were going to be removed. The update, on finishing, prompted a system restart. After that, the system hung during the boot. After some troubleshooting, and booting into recovery mode, I was able to check the apt logs, and I saw that the last entry removed a whole bunch of packages, including all Kubuntu desktop packages. On the advice of a user on the Kubuntu irc, I reinstalled Kubuntu desktop, and now, I'm my Kubuntu desktop is back. I have not run Muon update since. I'm attaching (check the url for paste) my log/apt/history.log . The last entry (Start-Date: 2016-02-05 15:32:18) is my Kubuntu desktop reinstall, and the one prior to that (Start-Date: 2016-02-05 11:20:07) is, I'm assuming, what Muon update did on restart. Reproducible: Didn't try
hi! Can't see no logs?
(In reply to EllisIsPfroh from comment #1) > hi! > Can't see no logs? It's in the URL field. http://paste.ubuntu.com/14991431/
Found logs :-) On 5.2.16 11:20 some packages were (for whatever reason - cleanup?) removed that are need for the function of Kubuntu. Muon won't give a feedback on removing these packages - it has a buitlin preview/simulation in case one is not sure what effects the removal of packages has. At this stage it's still possible to disregard the proceeding. ==== Reproducibility: Yes - from knowledge of helping in a Forum - there was once a person thinking she may not need Thai-Fonts and didnt check before. Was then only possible to repair system by analysis of apt-log in text-mode and reinstall teared-away packages. === <OT> From personal exerience stepping into every pitfall linux can offer - there's no need to clean up the system as it comes. When it comes to experiments it's much more reliable to do this in a testing environment like e.g. Virtualbox. It accelerates the curve of learning & doesn't endanger the stable working environment. Knowledge doesn't come from itself, but practice & experience. <OT>
Looks like a packaging issue in Kubuntu...