Am 01.06.23 um 15:40 schrieb Buddy Butterfly:

Hi Stefan,

yes, you can trust me, that I always have a "clear" apt installation with

apt update
apt dist-upgrade

And here's the issue.

a) You should not run "apt dist-upgrade". Never. "dist-upgrade" is not officially supported by "apt". (It is supported with "apt-get", as far as I know.)

b) The proper command to use instead is "apt full-upgrade", but ...

c) You should always run "apt upgrade" before attempting a more invasive command like "apt full-upgrade".

d) You should not use "-y" or a script containing the commands you listed, unless you are willing to risk breakage AND have a proper backup.

e) Read, Understand, and Think before you approve an update, especially if it indicates package removals (which an "apt upgrade" will never do, unlike an "apt full-upgrade").

apt autoremove --purge
apt autoclean
apt clean

This is how I usually run manual updates on machines, usually within a "screen" session when I'm logged in remotely, so a natwork issue won't interrupt any dpkg-configure calls:

apt update
apt full-upgrade -d -y # see explanation below
apt upgrade
apt full-upgrade # optional step
apt autoremove --purge
apt clean

# Explanation: I want all packages to be available locally before
# starting the upgrade, so that any transient network failures won't
# matter. It'll either fail at the download stage already, which won't
# break anything, or it will be able to access all packages even if
# the network fails inbetween.

Again, if any of these commands throw a warning/an error, do not blindly continue.

IF, AND ONLY IF YOU HAVE A BACKUP THAT YOU HAVE VERIFIED TO BE WORKING:

apt update && apt full-upgrade -d -y && \
apt upgrade -y && apt full-upgrade -y && \
apt autoremove --purge && apt clean

In your case, apt upgrade should have shown that it has some packages it cannot upgrade due to unresolved dependencies, but should have continued to work. The mess only starts after using dist-upgrade/full-upgrade, because with that, you are actually authorizing uninstalls. It is basically "Yes, do as I say!"'s little brother.

Kind Regards,
Stefan Baur