Can't get repository information in order to upgrade 10.10 to 11.04
1520
How to install software or upgrade from an old unsupported release?
104906
Unable to connect to repository in MiKTeX 2.9
155918
What information do I need to solve an APT dependency issue?
110896
Package installation - Outdated repository
8204
apt-get update only for a specific repository
128471
How do I update from 9.0.10 to 9.1.0?
82035
Debian: The repository does not have a Release file
4305
How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?
66915
How to request a package upgrade in the next Ubuntu release
151605
upgrading from 15.10 to 16.04 apt not installed
64509
Can't update from official repositories [Error 409]
26745
Skipping acquire of configured file 'contrib/binary-i386/Packages' as repository ... doesn't support architecture 'i386'
80899
"no public key available" on apt-get update
24165
Upgrade to version newer than repositories
140893
Error when using apt-get update
109539
How can I perform an offline upgrade using Ubiquity on the installation disc?
12578
How do I upgrade to a newer version of Ubuntu?