package shim-signed 1.28~16.04.1+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Thomas Klaus]

don't know

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: shim-signed 1.28~16.04.1+0.9+1474479173.6c180c6-1ubuntu1
ProcVersionSignature: Ubuntu 4.8.0-54.57~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-54-generic x86_64
.proc.sys.kernel.moksbstate_disabled: 0
.sys.firmware.efi.efivars.MokSBStateRT-605dab50-e046-4300-abb6-3dd810dd8b23: Error: [Errno 2] Datei oder Verzeichnis nicht gefunden: '/sys/firmware/efi/efivars/MokSBStateRT-605dab50-e046-4300-abb6-3dd810dd8b23'
.sys.firmware.efi.efivars.SecureBoot-8be4df61-93ca-11d2-aa0d-00e098032b8c: 

[Steve Langasek (vorlon)]

The error in your log is:

Setting up shim-signed (1.28~16.04.1+0.9+1474479173.6c180c6-1ubuntu1) ...
Installing for x86_64-efi platform.
efibootmgr: Could not delete Boot0001: Invalid argument
efibootmgr: Could not delete boot variable: Invalid argument
** Warning ** : Boot0001 has same label ubuntu
efibootmgr: Could not set variable Boot0002: No such file or directory
efibootmgr: Could not prepare boot variable: No such file or directory
Installation finished. No error reported.
Running in non-interactive mode, doing nothing.
dpkg: error processing package shim-signed (--configure):
 subprocess installed post-installation script returned error exit status 1

You clearly have a UEFI system, but for some reason the UEFI variables cannot be modified from the OS. This looks like a firmware problem to me. Do you still have problems applying updates if you reboot your system and try again?

[Launchpad Janitor (janitor)]

[Expired for shim-signed (Ubuntu) because there has been no activity for 60 days.]