Re: LUKS encryption help

[Marco Möller <talby@debianlists.mobilxpress.net>]

On 29.08.21 07:09, detrito@tuta.io wrote:
> (...)
>
> Before:
>
> NAME FSTYPE FSVER LABEL UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
> sda
> ├─sda1
> │    vfat   FAT32       A2BD-D233                              70,8M    26% /boot/efi
> ├─sda2
> │
> ├─sda3
> │    ntfs               2AD4C9CED4C99C87
> ├─sda4
> │    ntfs               584044B640449C9E
> └─sda5
>       ext4   1.0         15dd568a-ec98-4470-8812-a82b15d44995  212,2G    60% /
>
>
> After:
>
> NAME   FSTYPE      FSVER LABEL UUID                                 FSAVAIL FSUSE% MOUNTPOINTS
> sda
> ├─sda1 vfat        FAT32       A2BD-D233                              70,8M    26% /boot/efi
> ├─sda2
> ├─sda3 ntfs                    2AD4C9CED4C99C87
> ├─sda4 ntfs                    584044B640449C9E
> └─sda5 ext4        1.0         15dd568a-ec98-4470-8812-a82b15d44995  212,2G    60% /
> sdb
> ├─sdb1 ext2        1.0         a066ddce-69d9-47df-9030-ccbb8305fd1b
> ├─sdb2
> └─sdb5 crypto_LUKS 2           992108a2-0a0c-4dfc-9482-ce86cbfdfa98
>
> >    cryptsetup --version
>
> cryptsetup 2.4.0
>
> > cryptsetup -v isLuks --type luks1 /dev/sdb
>
> Device /dev/sdb is not a valid LUKS device.
> Command failed with code -1 (wrong or missing parameters).
>
> > cryptsetup -v isLuks --type luks2 /dev/sdb
>
> Command failed with code -1 (wrong or missing parameters).
>
> (...)


The device name in your command should be for the specific situation as 
indicated by you lsblk command the string:   /dev/sdb5

Thus, you are supposed to run this command (as root, or using sudo):
cryptsetup -v isLuks --type luks1 /dev/sdb5
cryptsetup -v isLuks --type luks2 /dev/sdb5

If the partition could be recognized to be of type LUKS version 1, or 
LUKS version 2, the respective command instead of any error message 
would answer:
"Command successful."

---
Good Luck!
Marco.