upgrade from 16.04 to 17.04 failed "Could not calculate the upgrade"
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ubuntu-release-upgrader (Ubuntu) |
Invalid
|
Undecided
|
Unassigned |
Bug Description
Running 16.04, trying to upgrade to 17.04. Error during the second step "Setting new software channels". Error dialog says:
```
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
This can be caused by:
* Upgrading to a pre-release version of Ubuntu
* Running the current pre-release version of Ubuntu
* Unofficial software packages not provided by Ubuntu
If none of this applies, then please report this bug using the command 'ubuntu-bug ubuntu-
```
No idea what could cause this...
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: ubuntu-
ProcVersionSign
Uname: Linux 4.4.0-87-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: XFCE
Date: Thu Aug 3 09:11:34 2017
EcryptfsInUse: Yes
InstallationDate: Installed on 2016-07-11 (387 days ago)
InstallationMedia: Xubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
PackageArchitec
SourcePackage: ubuntu-
UpgradeStatus: Upgraded to xenial on 2017-08-03 (0 days ago)
VarLogDistupgra
mtime.conffile.
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. Thanks.
[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]