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

Martin-Éric Racine <[email protected]> Sun, 6 Apr 2025 10:00:45 +0300

Newsgroups	gmane.linux.debian.user.testing
Message-ID	<CAPZXPQddHF=5wed4B-p5pejzqm=uPBebjV3+owmsT6mYvPvDyw__48147.0134736568$1743923006$gmane$org@mail.gmail.com>

On Sat, 05 Apr 2025 22:56:46 +0300 =3D?utf-8?q?Martin-=3DC3=3D89ric_Racine?=
=3D
<[email protected]> wrote:
> Package: upgrade-reports
> Severity: important
> X-Debbugs-Cc: [email protected]
>
> After upgrading an amd64 host from Bookworm to Trixie (2025-04-05 EEST), =
on reboot, the host gets a kernel panic with:
>
> initramfs unpacking failed invalid magic at start of compressed archive

I just checked whether I can rescue the host using the Trixie mini.iso
on a USB stick:

Debian GNU/Linux 13 (trixie) amd64 - netboot mini.iso 20241227

I get the same kernel panic as soon as GRUB loads the kernel.

If I try with the Bookworm mini.iso, the kernel boots just fine and
gets me to the rescue menu.

Debian GNU/Linux 12 (bookworm) amd64 - netboot mini.iso 20230607+deb12u9

However, using the Bookworm rescue mode is a PITA, because it doesn't
know how to mount brtfs sub-volumes (not even with Debian's default
@rootfs) so even just chroot'ing myself in using the above recipe
requires a LOT of command typing inside the rescue mode's shell.

Martin-=C3=89ric