Slightly alarmingly today, the push out of this fix resulted in shim being marked to be autoremoved.
Start-Date: 2021-08-03 09:32:20 Commandline: apt dist-upgrade Requested-By: uccaoke (1000) Upgrade: shim-signed:amd64 (1.40.4+15+1552672080.a4a1fbe-0ubuntu2, 1.40.6+15.4-0ubuntu7), shim:amd64 (15+1552672080.a4a1fbe-0ubuntu2, 15.4-0ubuntu7) End-Date: 2021-08-03 09:32:23
Start-Date: 2021-08-03 09:32:37 Commandline: apt autoremove Requested-By: uccaoke (1000) Remove: shim:amd64 (15.4-0ubuntu7) End-Date: 2021-08-03 09:32:37
I'm not sure if this would result in a non-booting system so I manually reinstalled shim to make sure but you might want to check.
(as per comment 23 I've opened this as bug #1938774)
Slightly alarmingly today, the push out of this fix resulted in shim being marked to be autoremoved.
Start-Date: 2021-08-03 09:32:20 15+1552672080. a4a1fbe- 0ubuntu2, 1.40.6+ 15.4-0ubuntu7) , shim:amd64 (15+1552672080. a4a1fbe- 0ubuntu2, 15.4-0ubuntu7)
Commandline: apt dist-upgrade
Requested-By: uccaoke (1000)
Upgrade: shim-signed:amd64 (1.40.4+
End-Date: 2021-08-03 09:32:23
Start-Date: 2021-08-03 09:32:37
Commandline: apt autoremove
Requested-By: uccaoke (1000)
Remove: shim:amd64 (15.4-0ubuntu7)
End-Date: 2021-08-03 09:32:37
I'm not sure if this would result in a non-booting system so I manually reinstalled shim to make sure but you might want to check.
(as per comment 23 I've opened this as bug #1938774)