Hi, I've enabled focal-proposed and I'm still having the problem, on a fresh install of kubuntu 20.04. Something I didn't notice in the above bug report is the contents of the failed build logfile, which indicates there's a compiler version issue and not a kernel source version mismatch, and the build is attempting to use some warning flags that the installed version of gcc doesn't support. I've attached my make.log in the hopes that this helps someone figure out the root cause to be fixed.
Also, here is the error I get while running apt install nvidia- driver-460-server: ERROR: Cannot create report: [Errno 17] File exists: '/var/crash/nvidia-dkms-460-server.0.crash' Error! Bad return status for module build on kernel: 5.8.0-50-generic (x86_64) Consult /var/lib/dkms/nvidia-srv/460.73.01/build/make.log for more information. dpkg: error processing package nvidia-dkms-460-server (--configure): installed nvidia-dkms-460-server package post-installation script subprocess returned error exit status 10 Setting up libgl1-mesa-dri:i386 (20.2.6-0ubuntu0.20.04.1) ... Setting up libxext6:i386 (2:1.3.4-0ubuntu1) ... Setting up libxxf86vm1:i386 (1:1.1.4-1build1) ... Setting up libnvidia-gl-460-server:i386 (460.73.01-0ubuntu0.20.04.1) ... Setting up libnvidia-decode-460-server:i386 (460.73.01-0ubuntu0.20.04.1) ... Setting up libxfixes3:i386 (1:5.0.3-2) ... dpkg: dependency problems prevent configuration of nvidia-driver-460-server: nvidia-driver-460-server depends on nvidia-dkms-460-server (<= 460.73.01-1); however: Package nvidia-dkms-460-server is not configured yet. nvidia-driver-460-server depends on nvidia-dkms-460-server (>= 460.73.01); however: Package nvidia-dkms-460-server is not configured yet. ** Attachment added: "make.log" https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-460/+bug/1925386/+attachment/5496587/+files/make.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1925386 Title: Upgrade from 460.32.03-0ubuntu2 to 460.73.01-0ubuntu1 fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-460/+bug/1925386/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs