Public bug reported:
Binary package hint: grub2
I'm trying to migrate my LVs over to a Luks volume (prompt on password
at boot). Unfortunately, as soon as I add my luks-encrypted physical
volume to my volume group, I'm no longer able to update my grub
configuration.
I've created and unlocked my encrypted partition with the following:
$ sudo cryptsetup -c aes-cbc-essiv:sha256 -y -s 256 luksFormat /dev/sdb1
$ sudo cryptsetup luksOpen /dev/sdb1 crypto_agilityssd
My /etc/crypttab looks like this:
# <target name> <source device> <key file> <options>
# cryptswap1 /dev/dm-2 /dev/urandom swap,cipher=aes-cbc-essiv:sha256
crypto_agilityssd /dev/sdb1 none luks
So far so good. The device is accessible in /dev/mapper. I've created a
physical volume on the device, as shown:
$ sudo pvs
PV VG Fmt Attr PSize PFree
/dev/dm-4 lvm2 -- 46.00g 46.00g
/dev/sda4 vg_thinkpad lvm2 a- 184.69g 31.66g
At this point, I can run `sudo update-grub` successfully. However, if I add
vgexpand, I can no longer run update-grub:
$ sudo vgextend vg_thinkpad /dev/mapper/crypto_agilityssd
Volume group "vg_thinkpad" successfully extended
$ sudo update-grub
Generating grub.cfg ...
/usr/sbin/grub-probe: error: Couldn't find PV pv1. Check your device.map.
** Affects: grub2 (Ubuntu)
Importance: Undecided
Status: New
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update-grub fails when LVM PV exists on an encrypted partition
https://bugs.launchpad.net/bugs/667060
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