It looks like 'dkms uninstall' is removing the built tree, instead of just removing the files from /lib/modules, leaving the driver in state "added", not the "built" state that shim-signed is expecting. If the manpage is to be believed, this is a bug in dkms.
It looks like 'dkms uninstall' is removing the built tree, instead of just removing the files from /lib/modules, leaving the driver in state "added", not the "built" state that shim-signed is expecting. If the manpage is to be believed, this is a bug in dkms.