Ubuntu
grub2 package

  1. Bug #1813126
  2. Comment #3

Comment 3 for bug 1813126

Revision history for this message
Mathieu Trudel-Lapierre (cyphermox) wrote : Re: [19.04] GRUB_ENABLE_CRYPTODISK=y ignored

If you manage to boot off a USB key or something else and discover the drives, can you then run grub-probe on the device to check if grub correctly identifies the disk as a crypto disk?

Running the following command:

sudo grub-probe --device=/dev/mapper/<your crypto device> --target=abstraction

Should get you output a bit like the following:
cryptodisk
luks
gcry_rijndael
gcry_rijndael
gcry_sha256

If not, then the device is not getting recognized properly.

At a glance, my first guess would be that the format changes in LUKS that happened in 19.04 are causing an issue, but I'm not sure. I would not have expected this to be a problem on upgrade.

Please report with the output for the command above if possible, so we can dig in more into what is happening in grub's probing.