1. Install any out-of-tree dkms packages (like bbswitch-dkms)
2. Un-enroll keys from MOK, ensure `mokutil --test-key /var/lib/shim-signed/mok/MOK.der` command returns "/var/lib/shim-signed/mok/MOK.der is not enrolled"
3. Ensure SecureBoot is enabled
4. Install any linux-headers-${version}-generic packages that is currently not installed, verify if it stucks at configurating state
@juliank
To trigger the bug:
1. Install any out-of-tree dkms packages (like bbswitch-dkms) shim-signed/ mok/MOK. der` command returns "/var/lib/ shim-signed/ mok/MOK. der is not enrolled" ${version} -generic packages that is currently not installed, verify if it stucks at configurating state
2. Un-enroll keys from MOK, ensure `mokutil --test-key /var/lib/
3. Ensure SecureBoot is enabled
4. Install any linux-headers-