On Sun 04 Oct 2020 at 16:16:33 (+0200), john doe wrote: > I just installed Debian Buster with encrypted LVM. > > In my fstab file, I have: > # <file system> <mount point> <type> <options> <dump> <pass> > /dev/mapper/try02--vg-root / ext4 errors=remount-ro 0 > 1 > > I can't figure out what device I should pass to cryptsetup to avoid the > below error: > > $ cryptsetup -v luksAddKey /dev/mapper/try02--vg-root /etc/keys/root.key > --key-slot=1 > Device /dev/mapper/try02--vg-root doesn't exist or access denied. > Command failed with code -4 (wrong device or file specified). > > > How can I know what device cryptsetupt will accept?
It looks as if you're trying to add the key to the decrypted device, ie the /dev/mapper/ device that gets mounted as /. You add keys to the encrypted device, ie the device that contains the encrypted filesystem, the argument you used in the command # cryptsetup luksFormat <this-device> Cheers, David.
