How do we unlock multiple disks with one password prompt at CentOS-7 bootup? In Debian, I can do it using decrypt_keyctl & initramfs in /etc/crypttab (which I see is described here).
Right now, I'm using Nethserver, and crypttab looks like:
luks_root UUID=<uuid1> none luks_swap UUID=<uuid2> none
How do I add another disk, which I want to decrypt via a (the same) password?
Perhaps that will also clear up the mystery of how it is that the present bootup happens with only one password prompt and without a keyfile.