I don't believe this is a duplicate. shim-signed was looking for the NVMe storage that was removed and inaccessible. Bug #1940723 has a similar mechanism of failure, but is related to cloud instances, rather than a missing device.
** This bug is no longer a duplicate of bug 1940723 shim-signed fails to install if grub disk config is incorrect -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939950 Title: shim-signed fails to upgrade when NVMe drive is moved into the VM as Virtio drive To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/shim-signed/+bug/1939950/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs