Cannot get Ubuntu software update to work
6809
How do I fix the GPG error "NO_PUBKEY"?
133752
How can I update Visual Studio Code on Ubuntu?
59088
How to upgrade to a newer release of Ubuntu using the Live CD?
140470
How do I update kernel to the latest mainline version?
1632
How do I fix a "Failed to download package files" error?
94545
How to update ubuntu's python with latest version from source?
109409
Cannot update/install other software after failing to install LibreOffice
129101
Upgrading Ubuntu 9.04 to 9.10 when Update Manager doesn't let you
134080
Still can't upgrade? Is there a new delay?
117852
"Package dependencies cannot be resolved" error when installing software
13107
How to install updates via command line?
99687
update-alternatives --install says it needs link name path priority?
9723
How do I install software using the Ubuntu Software Center?
20077
Cant install via Ubuntu Software- "apt transaction returned result exit-failed"
121201
Why can't I update applications without upgrading the whole OS?
115421
Ubuntu 13.10 to 14.04 Lts does not upgrade, keeps showing error
107792
Update information outdated, "Failed to fetch cdrom"