Can't update, can't install from SC 18.04
13107
How to install updates via command line?
72695
Can't connect to Windows Update
48809
"The upgrade has aborted" error, how to proceed?
158145
A software update is required to use this startup disk - does not update
102559
How to install package from newer distribution?
149245
What to do about "the disk drive for /dev/mapper/cryptswap1 is not ready yet or not present"?
249
How do I fix this "E: Type '*' is not known on line * in source list ..." update error?
30754
Cannot update: "No available releases found"
11166
"Require Installation Of Untrusted Packages" while upgrading with the update manager
12614
Upgrade problem
127852
How do I update a program installed from a manually-downloaded deb package?
65099
Unable to install any updates through update manager/apt-get upgrade
10633
software updater failed to download repository information
100494
Update Manager asking me to update kernel but apt-get upgrade does not?
78518
Windows 7, update.packages problem: "unable to move temporary installation"?
9322
Software Updater Issue 16.04
50810
No upgrade available for 19.04 from 18.10