Public bug reported:
> do-release-upgrade -d
[…]
Änderungen werden berechnet
Es konnte nicht ermittelt werden, welche Systemaktualisierungen
verfügbar sind
Ein unlösbares Problem trat beim Ermitteln der Systemaktualisierung
auf.
[…]
> tail /var/log/dist-upgrade/main.log
2014-11-21 13:32:56,079 DEBUG blacklist expr 'ubuntu-desktop' matches
'ubuntu-desktop-next'
2014-11-21 13:32:56,079 DEBUG The package 'ubuntu-desktop-next' is marked for
removal but it's in the removal blacklist
2014-11-21 13:32:56,186 ERROR Dist-upgrade failed: 'Das Paket
»ubuntu-desktop-next« ist zum Löschen vorgesehen, wurde aber durch das System
gesperrt.'
2014-11-21 13:32:56,187 DEBUG abort called
Full logs attached.
Neither the GUI upgrade nor the command line told me why it failed nor did it
point me at the relevant log; I only found it by asking a helpful follow Ubuntu
user. Where then I discovered the ERROR.
** Affects: ubuntu-release-upgrader (Ubuntu)
Importance: Critical
Status: New
** Attachment added: "upgrade.fail.log"
https://bugs.launchpad.net/bugs/1395000/+attachment/4265107/+files/upgrade.fail.log
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https://bugs.launchpad.net/bugs/1395000
Title:
Dist-upgrade failed with no explanation (real reason: blacklisted
ubuntu-next)
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