Bug#1102604: rescue-mode: Provide rootfs subvolume selection menu
la 27.12.2025 klo 13.44 Cyril Brulebois (kibi@debian.org) kirjoitti:
> Martin-Éric Racine <martin-eric.racine@iki.fi> (2025-12-27):
> > I flashed this onto a USB stick and booted it in UEFI mode on a host
> > with a brtfs root. Selected Rescue mode. Went through hardware
> > detection and network configuration as usual. Selected the btrfs
> > partition as root. Rescue mode offered to mount the EFI partition
> > right after. I launched a shell and could verify that the correct
> > partitions appear.
> >
> > I think we're good to go for Bookworm now. Thanks again!
>
> Great, thanks.
>
> Just out of curiosity, since we support a number of scenarios, which
> one was that? In case someone else wants to chime in and test another
> one…
>
> Condensing the changelog:
>
> 1. The default installation to @rootfs (bullseye and later)
> 2. The default installation to subvolid=5 (buster or earlier).
> "subvolid=5" was chosen over "subvol=/" for maximum disambiguation.
> 3. Add support for rescuing btrfs systems installed via the Calamares
> installer found on Debian Live images: it uses subvol=@ (instead of
> subvol=@rootfs as seen with debian-installer).
This /etc/fstab says 'defaults,subvol=/@rootfs' which IIRC was setup
using a Bookworm installer.
Martin-Éric
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