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.
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.