404 not found - error while updating using aptitude
1520
How to install software or upgrade from an old unsupported release?
100494
Update Manager asking me to update kernel but apt-get upgrade does not?
13107
How to install updates via command line?
4305
How do I fix a "Problem with MergeList" or "status file could not be parsed" error when trying to do an update?
93942
How to fix "Failed to download repository information" error while updating?
63176
How can I update to Ubuntu 21.04?
24603
apt-get upgrade gives "403 forbidden" error
107638
update-alternatives: error: alternative path /lib/plymouth/themes/MIB-Ubuntu/MIB-Ubuntu.plymouth doesn't exist
38476
How do you open Apt links in Ubuntu?
113379
Updating the repository isn't working
12368
A "failed to fetch" error occurs when apt-get update is run. How do I fix this?
122588
Can't connect to ubuntu archive when using apt-get update
44683
Problem with sudo apt update in Ubuntu 18.04: Post-Invoke-Success if /usr/bin/test -w /var/lib/command-not-found/
86777
Distribution upgrade problem "No new release found"
30754
Cannot update: "No available releases found"
51350
While updating the ubuntu 16.04 does not have a Release file Error
19288
Update manager doesn't offer an upgrade to the new release