I am trying to back up the LUKS header and LUKS FAQ recommend using the cryptsetup luksHeaderBackup command. Cryptsetup man page has the following format
"luksHeaderBackup <device> --header-backup-file <file>" the following example is taken from the LUKS FAQ. cryptsetup luksHeaderBackup --header-backup-file h /dev/mapper/c1 i just want to confirm if I am reading this example right. cryptsetup luksHeaderBackup --header-backup-file > I understand the options but the following operands are a bit confusing. h > is the backup file name/location in the example /dev/mapper/c1 > I am guessing c1 here means the hard disk partition with luks. Right? I only have one partition that uses LUKS, sda4. It's a GPT disk and the partitions are as follows sda1 = ESP sda2 = EF02 sda3 = /boot sda4 = luks = rest of the disk. On my system, there is just /dev/mapper/sda4, I am guessing this is the devise I need to back up or is it the whole hard drive just like backing up a MBR. I am guessing the command I need to use on my system is: cryptsetup luksHeaderBackup /dev/mapper/sda4 --header-backup-file /media/USB_stick Is this interpretation right? -- Kind regards, Yudi -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/caco--mv78xerd3q_jtylkfuxlw3d+gdv01g0oezxwu1khgu...@mail.gmail.com
