system upgrade it might not be possible with some packages
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ubuntu-release-upgrader (Ubuntu) |
Invalid
|
Undecided
|
Laszlo Koroknai |
Bug Description
The update failed Preparation
Unsolvable problem occurred during the update.
This could have been caused as follows:
* Updates to Ubuntu a pre-release version
* To run the Ubuntu version of a pre-release
* Unofficial packages that are not in the Ubuntu provides
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: ubuntu-
ProcVersionSign
Uname: Linux 4.2.0-35-generic i686
ApportVersion: 2.19.1-0ubuntu5
Architecture: i386
CrashDB: ubuntu
CurrentDesktop: Unity
Date: Sun Apr 24 21:07:16 2016
InstallationDate: Installed on 2011-10-26 (1641 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
PackageArchitec
SourcePackage: ubuntu-
UpgradeStatus: Upgraded to wily on 2016-04-24 (0 days ago)
Reviewing the files from your upgrade attempt you seem to have enabled a PPA that provides Xorg packages. This will prevent the upgrade as that PPA contains different versions of packages essential to Ubuntu. The page, https:/ /launchpad. net/~xorg- edgers/ +archive/ ppa, contains details on to how to revert to the official Xorg packages for the xorg-edgers PPA. Instructions for reverting to official Xorg packages should be similar for the PPA that you have enabled.