Bug#1102160: upgrade-reports: Bookworm to Trixie [amd64][EFI] initramfs unpacking failed invalid magic at start of compressed archive

[Martin-Éric Racine]

la 19.4.2025 klo 12.43 Pascal Hambourg (pascal at plouf.fr.eu.org) kirjoitti:
>
> On 19/04/2025 at 10:19, Martin-Éric Racine wrote:
> >
> > Will the release team publish Trixie fully knowing that btrtfs hosts
> > will no longer be bootable via UEFI?
>
> Not all btrfs hosts are affected. A fresh UEFI trixie btrfs virtual
> machine boots fine on bookworm QEMU+OVMF. IIUC you wrote that trixie
> installer is affected too on your host, but it does not use btrfs to
> boot so non-btrfs systems may be affected.

Point taken. Trixe d-i doesn't boot in UEFI on this host, which would
suggest that the filesystem type used for the root partition may well
be a red herring.

What googling the error shows is lots of people on Ubuntu derivatives
with hosts booting via UEFI to a btrfs root partition. Some of the
reporters claim that making a fresh install using ext4 for the root
partition solved it. This suggests that the error about unsupported
option (subvolume) may be the cause. Others report that it
reinstalling with an ext4 root partition did not solve it. This
suggests a larger issue with recent GRUB code changes.

Martin-Éric