Unable to update on Ubuntu 14.04lts
728
Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?
12164
How do I update my TeX distribution?
6913
Grub update warning in Ubuntu 14.04
24734
Google Chrome update won't install due to unmet dependencies
35243
Is it safe to do-release-upgrade from 12.04.4 to 14.04.1?
122588
Can't connect to ubuntu archive when using apt-get update
76241
"no public key available" while upgrading using update-manager
128471
How do I update from 9.0.10 to 9.1.0?
30754
Cannot update: "No available releases found"
46720
sudo apt update error: "Release file is not yet valid"
130118
Ubunutu 18.04 Updates 404 error
19288
Update manager doesn't offer an upgrade to the new release
80899
"no public key available" on apt-get update
5820
How to fix the “Unable to calculate upgrade” issue from command line when upgrading from 12.04 to 14.04?
12368
A "failed to fetch" error occurs when apt-get update is run. How do I fix this?
119169
Should I upgrade to 14.04 LTS?
4305
How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?