Public bug reported:
During the routine upgrade grub-efi-amd64-signed
(1.93.15+2.02-2ubuntu8.14) returned an error:
Setting up grub-efi-amd64-signed (1.93.15+2.02-2ubuntu8.14) ...
Installing for x86_64-efi platform.
Could not delete variable: Invalid argument
grub-install: error: efibootmgr failed to register the boot entry: Block device
required.
dpkg: error processing package grub-efi-amd64-signed (--configure):
installed grub-efi-amd64-signed package post-installation script subprocess
returned error exit status 1
Errors were encountered while processing:
grub-efi-amd64-signed
E: Sub-process /usr/bin/dpkg returned an error code (1)
Linux server 5.0.0-36-generic #39~18.04.1-Ubuntu SMP Tue Nov 12 11:09:50 UTC
2019 x86_64 x86_64 x86_64 GNU/Linux
** Affects: grub2-signed (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1855574
Title:
grub-efi-amd64-signed (1.93.15+2.02-2ubuntu8.14) failed to upgrade
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