View source for When a normal dnf update fails

Questions to [mailto:davrot@uni-bremen.de David Rotermund]

Let us assume the dnf update inbetween. You lost the remote connection to the computer where the update was running or systemd oom killed the dnf task.

Concerning systemd-oomd, you turn it off via:<syntaxhighlight lang="shell">systemctl disable --now systemd-oomd</syntaxhighlight>Now you are stuck in dnf limbo. How to get out of it with less effort as possible?

== Try 0 ==
If you can do this without an error then you are on a good way:<syntaxhighlight lang="shell">dnf -y remove --duplicates </syntaxhighlight>

== Try 1 ==
Well, if try 0 resulted in conflicts, we can try to solve them semi-autotamic:<syntaxhighlight lang="shell">dnf -y remove --duplicates 2> error.log
cat error.log | awk -F 'from install of|conflicts with file from package' '{print $2}' | sort -u | awk 'NF' | sed s/"^ "/"dnf -y reinstall "/g | sh
dnf -y remove --duplicates 2> error.log</syntaxhighlight>

== Try 2 ==
We end up here if errors after try 1 still remained:<syntaxhighlight lang="shell">cat error.log | awk -F 'from install of|conflicts with file from package' '{print $2}' | sort -u | awk 'NF' </syntaxhighlight>Now we need to deal with the remaining problem manually. This package is still broken:<syntaxhighlight lang="shell">darktable-4.4.2-1.fc37.x86_64</syntaxhighlight>This does not work:<syntaxhighlight lang="shell">[root ~]# dnf -y reinstall darktable-4.4.2-1.fc37.x86_64
Last metadata expiration check: 0:03:59 ago on Sat 09 Mar 2024 04:17:07 AM CET.
Package darktable available, but not installed.
No match for argument: darktable-4.4.2-1.fc37.x86_64
Error: No packages marked for reinstall.</syntaxhighlight>Okay, maybe we need to delete the old package manually:<syntaxhighlight lang="shell">cat error.log | awk -F 'conflicts with file from package' '{print $2}' | sort -u | awk 'NF'</syntaxhighlight>The problem lies with:<syntaxhighlight lang="shell"> darktable-tools-noise-4.0.1-2.fc37.x86_64</syntaxhighlight>We will remove it carefully(!!!). Don’t use -y and check the list if something important is on the to-be-deleted list:<syntaxhighlight lang="shell">dnf remove --noautoremove darktable-tools-noise-4.0.1-2.fc37.x86_64</syntaxhighlight>Now we should be able to do this:<syntaxhighlight lang="shell">dnf -y remove --duplicates </syntaxhighlight>

== Finalize ==
Now we can finalize the repair with:<syntaxhighlight lang="shell">dnf -y update --best --allowerasing --skip-broken</syntaxhighlight>or<syntaxhighlight lang="shell">dnf -y --enablerepo=* update --best --allowerasing --skip-broken</syntaxhighlight>Depending on if you want to include other non-default repos from your repo-list.

== Protected packages ==
If you get complaints about protected system packages, you can disable this protection by:<syntaxhighlight lang="shell">mv /etc/dnf/protected.d /etc/dnf/protected.d_xxx</syntaxhighlight>However, you should restore the protection later:<syntaxhighlight lang="shell">mv /etc/dnf/protected.d_xxx /etc/dnf/protected.d</syntaxhighlight>