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When I try and run sudo apt-get upgrade I get the following error:

root@FDPM:~# sudo apt upgrade
sudo: unable to resolve host FDPM: Name or service not known
Reading package lists... Done
Building dependency tree
Reading state information... Done
You might want to run 'apt --fix-broken install' to correct these.
The following packages have unmet dependencies:
libpam-modules : PreDepends: libpam-modules-bin (= 1.3.1-5ubuntu4.6)
                  Recommends: update-motd but it is not installed
E: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

This is preventing me from upgrading. Does anyone know how to debug?

Jos
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Dibin Jacob
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    Check your facts (esp. release tagged as 22.04) OR your sources, as libpam-modules-bin | 1.4.0-11ubuntu2.3 | jammy-security | amd64, arm64, armhf, i386, ppc64el, riscv64, s390x is the correct jammy or 22.04 package; so you've tried to install something from focal or 20.04 thus the issue. Your provided release is invalid; or your sources corrupted. libpam-modules-bin | 1.3.1-5ubuntu4.6 | focal-security is what your message shows; ie. 20.04 and not 22.04 – guiverc Jan 04 '24 at 11:38

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