error updating ubuntu 18.04.2 LTS
120
How do I restore the default repositories?
13970
Why am I not getting the Ubuntu 18.04 upgrade?
967
How can I avoid "please insert CD/DVD" error when updating Ubuntu?
1520
How to install software or upgrade from an old unsupported release?
4305
How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?
10023
'Some index files failed to download' while updating
24165
Upgrade to version newer than repositories
9322
Software Updater Issue 16.04
118978
Not all updates can be installed: partial upgrade
76241
"no public key available" while upgrading using update-manager
144507
No facility exists in Update Manager to upgrade to a new version, why?
117728
sudo apt update error
86777
Distribution upgrade problem "No new release found"
30068
Update: Failed to lock /var/cache/apt/archives/lock
77705
Unable to upgrade in ubuntu
100494
Update Manager asking me to update kernel but apt-get upgrade does not?
135383
Unable to update my system Ubuntu13.04: Getting message - requires installation of untrusted packages