i have finished upgrade ubuntu to 20.04 after uninstall mutter.
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https://bugs.launchpad.net/bugs/1917104
Title:
do-release-update from 18.04 to 20.04 failed
To manage notifications abo
> (You mentioned removing "every ppa repository", but did that most
importantly include packages that were installed from those
repositories?)
yes, i don't uninstall those packages that were installed from those
repositories.
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Public bug reported:
I cannot upgrade because of non-official software but I removed every
ppa repository and nothing has changed.
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: ubuntu-release-upgrader-core 1:18.04.42 [origin: unknown]
ProcVersionSignature: Ubuntu 5.4.0-67.75~18.04.1-gener
