I have tried multiple times to upgrade from 18.04 to 20.04 but it fails everytime
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ubuntu-release-upgrader (Ubuntu) |
New
|
Undecided
|
Unassigned |
Bug Description
Could not calculate the upgrade
An unresolvable problem occurred while calculating the upgrade.
This was caused by:
* Upgrading to a pre-release version of Ubuntu
This is most likely a transient problem,
please try again later.
If none of this applies, then please report this bug using the
command 'ubuntu-bug ubuntu-
you want to investigate this yourself the log files in
'/var/log/
Specifically, look at 'main.log' and 'apt.log'.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-
ProcVersionSign
Uname: Linux 4.15.0-51-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.24
Architecture: amd64
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Wed Jul 14 12:24:46 2021
PackageArchitec
SourcePackage: ubuntu-
UpgradeStatus: Upgraded to bionic on 2021-07-14 (0 days ago)
Thank you for taking the time to report this bug and helping to make Ubuntu better.
I see a number of 3rd party packages, esp. from https:/ /launchpad. net/~oibaf/ +ppa-packages
For best results with a release-upgrade, you should remove all 3rd party packages (bringing your system back to a pure Ubuntu one, ie. no 3rd party packages) then perform the upgrade. The tool ppa-purge can assist with this.
Likely related to https:/ /bugs.launchpad .net/ubuntu/ +source/ ubuntu- release- upgrader/ +bug/1069133
(following from https:/ /bugs.launchpad .net/ubuntu/ +source/ ubuntu- release- upgrader/ +bug/1922546/ comments/ 2)
[The use of oibaf ppa] will prevent the upgrade as that PPA contains package version numbers greater than the release to which you are upgrading. You can revert the PPA by installing the ppa-purge package from the official Ubuntu archive and then running 'sudo ppa-purge ppa:oibaf/ graphics- drivers' . After that you can try upgrading again and if it still fails open a new bug report. Thanks and good luck!