Hello,
These two draft patches make devmapper set up LUKS2 cryptomount
properties when pulling, as well as report LUKS2 cryptomounts as
having GRUB_DEV_ABSTRACTION_LUKS. This makes grub-probe and
grub-install behave properly wrt. LUKS2 drives: `grub-probe -t
abstraction /` reports all the needed modules for the GRUB image, and
grub-install leads to a working GRUB without manually adding modules.
One small part that I am unsure about, although I have tested it and
it does seem to work properly: if I understand correctly, all dm
devices have a 512 sector size, however LUKS2 lets one choose up to
4096 for the encryption sector size. Which of these two should be
used as cryptodisk->sector_size? I put 512 here since we're reading
through a cheated mount, but I'm not so sure.
Best,
Josselin Poiret
Josselin Poiret (2):
devmapper/getroot: Have devmapper recognize LUKS2
devmapper/getroot: Set up cheated LUKS2 cryptodisk mount from DM
parameters
grub-core/osdep/devmapper/getroot.c | 59 ++++++++++++++++++++++++++---
1 file changed, 54 insertions(+), 5 deletions(-)
--
2.34.0
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