Public bug reported:
Regression caused by
https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/1778848
Steps to reproduce
1) Install ubuntu-18.04-desktop-amd64.iso in a VM using QEMU and OVMF
2) Reboot the VM
3) See GRUB shell instead of GDM
The system can be rescued by running
configfile (hd0,gpt2)/boot/grub/grub.cfg
at the GRUB shell
Installing grub-efi-amd64 in the rescued system then makes it bootable.
Previously grub-efi-amd64-signed depended on grub-efi-amd64, and the system was
bootable immediately after installation.
Additionally, the removal of this dependency has resulted in a very
sparse /etc/default/grub after installation.
I've attached a simple script for installation with QEMU and OVMF.
I suspect that installs are broken on actual hardware with SecureBoot
disabled, but I'm not able to test that right now.
** Affects: grub2-signed (Ubuntu)
Importance: Undecided
Status: New
** Tags: regression-update
** Attachment added: "test.sh"
https://bugs.launchpad.net/bugs/1780897/+attachment/5161759/+files/test.sh
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https://bugs.launchpad.net/bugs/1780897
Title:
Installation failure on UEFI systems with SecureBoot disabled
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