After the update of "grub-efi-amd64-signed 1.93.16+2.02-2ubuntu8.15" ubuntu doesn't boot (Block device required error)

[tormec]

After the installation of the new version of this package, the system doesn't boot. I have to enter in "Recovery Mode".

$ lsb_release -rd
Description: Ubuntu 18.04.4 LTS
Release: 18.04

$ apt-cache policy grub-efi-amd64-signed
grub-efi-amd64-signed:
  Installed: 1.93.16+2.02-2ubuntu8.15
  Candidate: 1.93.16+2.02-2ubuntu8.15
  Version table:
 *** 1.93.16+2.02-2ubuntu8.15 500
        500 http://it.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1.93+2.02-2ubuntu8 500
        500 http://it.archive.ubuntu.com/ubuntu bionic/main amd64 Packages

[tormec (tormec)]

"Secure Boot" was already "disabled.
Apparently, setting also "LegacySupport" to "disabled" has solved the problem.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[dabfus (dabfus)]

The issue may be related to an update of "linux-firmware" package.
Laptop is a Latitude E7450 (062E) with Dell BIOS A13 version in Secure Boot mode.

lsb_release -rd
Description: Ubuntu 18.04.4 LTS
Release: 18.04

Update of grub-efi-amd64-signed package:
Paramétrage de grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Installation pour la plate-forme x86_64-efi.
Could not delete variable: Invalid argument
grub-install : erreur : efibootmgr n'a pas réussi à enregistrer l'entrée de démarrage: Bloc de périphérique requis.
(translation: efibootmgr failed to register the boot entry: Block device required.)

@tormec: when you say you have to enter "Recovery Mode", is it a suggested option following a reboot?

[tormec (tormec)]

@dabfus: yes, because I did it a reboot after I installed the upgrades but the screen remains completely black. So I restarted with "Alt + Stamp + B", then "Advanced Option for Ubuntu" and finally "Ubuntu, with Linux *.*.*-*-generic (recovery mode)". In the next "Recovery Menu" I choose "Resume Normal Boot" (which gave me the possibility to save all my files!).

[dabfus (dabfus)]

@Tormec: thanks for the advice! I'll wait in the hope of an update but I'm afraid the issue is related to my old BIOS version ...

[tormec (tormec)]

@dabfus: in #4 you wrote that "Secure Boot" is "enabled" and since I managed to solve the problem with "Secure Boot" and "Legacy Support" (or whatever it's called under your Bios) both "disabled" have you tried to do the same (with all the necessary precautions)?

[tormec (tormec)]

@dabfus: I mean this option https://www.dell.com/support/article/it-it/sln306176/xps-13-9365-slow-post-and-poor-performance-in-bios?lang=en

[dabfus (dabfus)]

@tormec: I havn't reboot yet but be sure I will give a report after if I have to try things

[Alin Trăistaru (alindt)]

I'm also affected (Dell PowerEdge R720xd):

# dpkg --configure grub-efi-amd64-signed
Setting up grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Installing for x86_64-efi platform.
Could not prepare Boot variable: Invalid argument
grub-install: error: efibootmgr failed to register the boot entry: Input/output error.
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

[dabfus (dabfus)]

@Alin: This is probably not the same issue:
"gerror: efibootmgr failed to register the boot entry: Input/output error"

The problem described here is:
"error: efibootmgr failed to register the boot entry: Block device required"

Other (maybe too old) bug entries on LaunchPad seem more specific to the problem you're experiencing:
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/1772374

[dabfus (dabfus)]

I finally ended up rebooting and there was no problem (the efibootmgr entries were good).

The message after running apt-get upgrade :
Paramétrage de grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Installation pour la plate-forme x86_64-efi.
Installation terminée, sans erreur

Translation:
Setting up grub-efi-amd64-signed (1.93.16+2.02-2ubuntu8.15) ...
Installation for the x86_64-efi platform.
Installation complete, no errors.