Hello, I put my report in closed issue: https://github.com/LINBIT/drbd/issues/87#issuecomment-2076358337
DKMS repors: Cleaning build area... make -j32 KERNELRELEASE=6.8.4-2-pve -C src/drbd KDIR=/lib/modules/6.8.4-2-pve/build..........(bad exit status: 2) Error! Bad return status for module build on kernel: 6.8.4-2-pve (x86_64) Consult /var/lib/dkms/drbd/9.2.8-2/build/make.log for more information. Error! One or more modules failed to install during autoinstall. Refer to previous errors for more information. dkms: autoinstall for kernel: 6.8.4-2-pve failed! run-parts: /etc/kernel/postinst.d/dkms exited with return code 11 Failed to process /etc/kernel/postinst.d at /var/lib/dpkg/info/proxmox-kernel-6.8.4-2-pve-signed.postinst line 20. Best regards, Michał Szamocki Cirrus