Comment 0 for bug 1649153

I upgraded (or tried to) from 15.10 to 16.04.

After a few errors as per bug 1561467 and a few crash-report popups which I don't know whether were related or not, I finally got the error message:

"Could not install the upgrades
The upgrade has aborted. YOUR SYSTEM COULD BE IN AN UNUSABLE STATE. A recovery will run now (dpkg --configure -a)"
(emphasys added).

By clicking "Close", I expedted the "recovery" to run and hopefully recover something, but nothing happened.
Almost immediately, the upgrade window with the checklist ("download stuff", "install stuff", ... "cleanup", "restart computer") disappeared (without prompting me to restart the computer) and I got a message like "Upgrade complete. The system was updated but there were errors" or something like that. (obviously this is all unacceptable: you tell me my system could be unusable and don't give me a clue about what the fuck happened and what I am supposed to do?!?)

So, I tried running "dpkg --configure -a" in a terminal, but I only got a very long series of almost identical errors regarding dependency problems for many many packages, which ended more or less like "Aborting, too many errors".

After a bit of googling, I tried this which I seemed to understand could maybe fix the issue:
  sudo apt-get -f install
(or "sudo apt-get install -f", can't remember now)

This seems to have worked. I could reboot (got a couple of crash reports, I hope they won't pop up at every reboot), my system is now 16.04 and tried some random stuff which seems to work.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: apt 1.2.15
ProcVersionSignature: Ubuntu 4.4.0-53.74-generic 4.4.30
Uname: Linux 4.4.0-53-generic x86_64
NonfreeKernelModules: nvidia_uvm nvidia
ApportVersion: 2.20.1-0ubuntu2.2
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Dec 11 23:17:12 2016
InstallationDate: Installed on 2013-10-11 (1157 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
SourcePackage: apt
UpgradeStatus: Upgraded to xenial on 2016-12-11 (0 days ago)