I have a file system on LVM inside LUKS on a 2nd SSD that I’d like to mount at boot time. The OS boots fine on the main (non-LUKS) SSD.

/etc/crypttab contains a line mapping a UUID to a name, with no keyfile.

/etc/fstab contains a line mapping /dev/LVMvg/volume to /home/special

But I’m not asked for the passphrase at boot.

I can do it manually once booted (cryptdisks_start asks for the passphrase, decrypts it, and then LVM picks up the volumes enabling me to mount /home/special.) But I’d like all this to happen early in the boot.

How can I make the early processes ask me for the crypt password?

Thanks!