On 2025-02-25 15:03, Pascal Hambourg wrote:
Control: reassign -1 partman-efi

On 25/02/2025 at 14:36, Ralf Bergs wrote:

it would be great if d-i would advise users that an ESP created as a
logical volume within LVM will (likely?) not be accessible to the UEFI.

I recently had this issue, and it caused me quite some effort to
understand why Grub couldn't properly register itself in UEFI -- it
was due to the above. ;-)

I remember you on IRC.
Is that good or bad? ;-)

This is a known issue, not specific to LVM; partman-efi should not allow to create an ESP where UEFI firmware cannot read it (LVM, crypto, most software RAID levels, partition tables other than DOS/MBR and GPT...).
Of course. I should have phrased it more generic, you're right.

A couple of years ago I submitted a bug report and a patch:

<https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=995091>
<https://salsa.debian.org/installer-team/partman-efi/-/merge_requests/4>

However it appeared later that some users create an ESP on RAID1 v1.0 which can be read as independent partitions by UEFI firmware.
True. I have this setup on one of my servers. :-)

So maybe just warn the user is an option. It requires a new debconf template and will involve translation effort, so it I guess is too late for trixie.
I can help with German, but I guess you want more translations than just that. ;-)

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