[Parted-maintainers] Bug#743353: libparted0-udeb: broken encrypted LVM autopartioning in d-i

[Cyril Brulebois]

Package: libparted0-udeb
Version: 2.3-17
Severity: serious
Tags: d-i
Justification: see $subject

Hi,

thanks to Sebastian Beyer for his report on #debian-boot, here are the
details for the regression I've just tracked down: trying to select auto
partitioning with encrypted LVM no longer works in the Debian Installer.

I've reproduced the issue using this image (dated 2014-03-31 08:09):
  http://cdimage.debian.org/cdimage/weekly-builds/amd64/iso-cd/debian-testing-amd64-netinst.iso

and wasn't able to do so with Jessie Alpha 1:
  http://cdimage.debian.org/cdimage/jessie_di_alpha_1/amd64/iso-cd/debian-jessie-DI-a1-amd64-netinst.iso

That was in kvm, using a single disk (qemu-img create…) in addition to
said images as cdrom.

Looking at the diff between relevant package lists in ../list-cd/,
parted looked like a good candidate, so I've built (using debian-cd)
a new netinst amd64 image, using deb/udeb built from parted 2.13-6, and
couldn't reproduce the issue; I've then confirmed that by rebuilding an
image using deb/udeb built from parted 2.13-7, and I was then able to
reproduce the issue again.

The syslog isn't very verbose, one can only see:
| partman-lvm: Device /dev/mapper/sda_crypt not found (or ignored by filtering).

Looking at /dev/mapper, there's only:
 - control
 - sda5_crypt

Since using patched udebs can be a bit tricky, please let me know if
I can help you with testing patches. Please keep debian-boot@ in the
loop when replying, too.

Mraw,
KiBi.