Can't upgrade OS Install (MATE); How to solve, please?
991
How can I fix apt error "W: Target Packages ... is configured multiple times"?
100494
Update Manager asking me to update kernel but apt-get upgrade does not?
7357
upgrade to 13.10 stalled and restart failed
134080
Still can't upgrade? Is there a new delay?
30747
Encountered "/usr/sbin/grub-mkconfig: 8: /etc/default/grub: 4: not found" error while updating
11166
"Require Installation Of Untrusted Packages" while upgrading with the update manager
64198
How to update grub on a dual boot machine?
59119
apt-get, unmet dependencies, ... "but it is not going to be installed"
63176
How can I update to Ubuntu 21.04?
25957
How do I apt-get -y dist-upgrade without a grub config prompt?
63772
I can't boot into a usable system after updates. What should I do?
110148
Why does `do-release-upgrade` skip a version?
120589
How do I install MATE (the desktop environment)?
85943
Can't update or install apps on Ubuntu Touch
131338
How do I deal with unknown installation error code -505?
74763
Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution)
14631
Can someone clarify Ubuntu (Debian) dist-upgrade for me?