On 2026-04-30 at 09:23, Eric S Fraga wrote: > Hello all, > > for Debian stable, I'm trying to update (having done an apt > dist-upgrade) and get the following error: > > --8<---------------cut here---------------start------------->8--- > Setting up linux-image-6.12.74+deb13+1-amd64 (6.12.74-2) ... > /etc/kernel/postinst.d/dkms: > Sign command: /lib/modules/6.12.74+deb13+1-amd64/build/scripts/sign-file > Signing key: /var/lib/dkms/mok.key > Public certificate (MOK): /var/lib/dkms/mok.pub > > Autoinstall of module rtl88x2bu/5.13.1 for kernel 6.12.74+deb13+1-amd64 > (x86_64) > Building module(s).....(bad exit status: 2) > Failed command: > ./dkms-make.sh > > Error! Bad return status for module build on kernel: 6.12.74+deb13+1-amd64 > (x86_64) > Consult /var/lib/dkms/rtl88x2bu/5.13.1/build/make.log for more information. > > Autoinstall on 6.12.74+deb13+1-amd64 failed for module(s) rtl88x2bu(10). > --8<---------------cut here---------------end--------------->8--- > > Any suggestions on how to fix this? Everything else is fine.
Where does that module come from? I don't find any reference to the string 'rtl88x2bu' in my currently configured/available source repositories (current Debian testing and stable), so my reflex is to suspect that this is a third-party module you've gotten from somewhere outside Debian. If that's correct, most likely that module is not compatible with some change that's included in the kernel (or build chain) in question, and you'll need to either update it from where you got it, or remove it. If you want to troubleshoot beyond that, I'd suggest starting by looking at the log file indicated in the error message; there's not a lot we can do to figure out the cause of the build failure without access to that log. -- The Wanderer The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw
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