lsblk

sudo lsblk
NAME                    MAJ:MIN RM   SIZE RO TYPE  MOUNTPOINT
sda                       8:0    0 232.9G  0 disk
├─sda1                    8:1    0   512M  0 part  /boot/efi
├─sda2                    8:2    0   244M  0 part  /boot
└─sda3                    8:3    0 232.2G  0 part
  └─sda3_crypt          254:0    0 232.1G  0 crypt
    ├─gondor--vg-root   254:1    0 224.2G  0 lvm   /
    └─gondor--vg-swap_1 254:2    0   7.9G  0 lvm   [SWAP]
sdb                       8:16   1 235.8G  0 disk
├─sdb1                    8:17   1   200M  0 part
└─sdb2                    8:18   1 235.6G  0 part  /media/rjw/L256GB