Kubuntu 24.04 Update Error Message

[marco07]

Hi Folk, today the latest update to my Kubuntu 24.04 included kernel 6.8.56-generic. Update was completed with the following error message.

....
dpkg: error processing package backport-iwlwifi-dkms (--configure):
 installed backport-iwlwifi-dkms package post-installation script subprocess returned error exit status 3
Errors were encountered while processing:
 backport-iwlwifi-dkms
E: Sub-process /usr/bin/dpkg returned an error code (1)
marco@t540p:~$​

However my wifi is connected and works fine. Do I need to remove something or else?
Thanks!

[marco07]

Hello:
Any comment or suggestion on my post above?
I still get the same error message after every update. I have googled and searched for this issue to no avail. Its sort of annoying .
Thanks!

[skyfishgoo]

if you run

software-properties-qt

and go to the Other Software tab do you see more than one item checked?

if there is one called backports, uncheck that.

you can also install synaptic and get to your repositories that way.

[claydoh]

if there is one called backports, uncheck that.

That has nothing to do with the problem, this is a normal package from the normal repos, not Ubuntu's Backports section.



if the backport-iwlwifi-dkms is failing to build the driver module for the new kernel (which is what DKMS does for you) and you have working wifi, then you probably aren't actually using that driver at all. You may be able to just uninstall that package, but it depends.

Messaging further above the final error would indicate which specific kernel it fails to build for. I believe DKMS will attempt to build the kernel module for all installed kernels if necessary, as well, so we do need to see more info. So we need to see which kernel you are running, as well as the one that fails to build -- scroll up a bit and see if you can spot it, or point you to the correct log file.


Ok, one of my initial thoughts is correct,
The driver in backport-iwlwifi-dkms is a backport for the original 6.8 kernel pulled from a newer kernel, and the current 6.11 kernel has this built-in now, so it is unnecessary. The build failure is a bug, still. But I suggest uninstalling the backport-iwlwifi-dkms if you are running the 6.11 kernel and have working wifi.

[marco07]

claydoh, i am running 6.8.0-58-generic in fully updated kubuntu 24.04 with a working wifi.
BTW, here is the entire generated error message;

[FONT=monospace][COLOR=#000000]Setting up backport-iwlwifi-dkms (11510-0ubuntu1.1) ... [/COLOR]
Removing old backport-iwlwifi-11510 DKMS files...
Loading new backport-iwlwifi-11510 DKMS files...
Error! DKMS tree already contains: backport-iwlwifi-11510
You cannot add the same module/version combo more than once.
[COLOR=#000000][B]dpkg:[/B][/COLOR][COLOR=#000000] error processing package backport-iwlwifi-dkms (--configure): [/COLOR]
installed backport-iwlwifi-dkms package post-installation script subprocess returned error exit status 3
Errors were encountered while processing:
backport-iwlwifi-dkms
[COLOR=#ff5454][B]E: [/B][/COLOR][COLOR=#000000]Sub-process /usr/bin/dpkg returned an error code (1)[/COLOR][/FONT]

​