[Bug 1912264] [NEW] Provide grub 2.04 EFI backport on bionic

[Launchpad Bug Tracker]

You have been subscribed to a public bug by Dimitri John Ledkov (xnox):

[Impact]

 * Provide grub 2.04 backport to bionic for improved TPM support.

[Test Case]

 * Boot to bionic EFI amd64 or arm64

 * If /boot/efi/EFI/ubuntu does not exist, execute

 on amd64 $ sudo grub-install --target x86_64-efi --uefi-secure-boot
 on arm64 $ sudo grub-install --target arm64-efi --uefi-secure-boot

and reboot

 * Install grub2.04-signed on bionic amd64 or arm64

 * Reboot, check that echo ${package_version} shows 2.04

 * Upgrade to focal

 * Observer that upgrade is correct and grub2.04-signed is now a dummy
transitional package

[Where problems could occur]

 * One must be able to remove grub2.04-signed & downgrade back to grub
2.02 based -bin and -signed packages. And binaries in /boot must be
updated.

 * One must be able to mix&match userspace grub packages tooling from
release/security/updates/proposed, whilst keeping grub2.04-signed
installed.

 * One must be upgraded to stock grub2.04 -bin / -signed packages upon
dist-upgrade to focal.

[Other Info]

 * Targetted to be installed by default on some cloud images.

Test packages available from this bileto PPA https://launchpad.net/~ci-
train-ppa-service/+archive/ubuntu/4413/+packages

NEW queue:
https://launchpad.net/ubuntu/focal/+queue?queue_state=0&queue_text=grub2.04-signed


https://launchpad.net/ubuntu/bionic/+queue?queue_state=0&queue_text=grub2.04-signed

** Affects: grub2 (Ubuntu)
     Importance: Undecided
         Status: Fix Released

** Affects: grub2 (Ubuntu Bionic)
     Importance: Undecided
         Status: In Progress

** Affects: grub2 (Ubuntu Focal)
     Importance: Undecided
         Status: In Progress

-- 
Provide grub 2.04 EFI backport on bionic
https://bugs.launchpad.net/bugs/1912264
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