See what's the block device
[yabbes@x220 ~]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 298,1G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 297,6G 0 part
└─lvm 254:0 0 297,6G 0 crypt
├─vg0-swap 254:1 0 4G 0 lvm [SWAP]
├─vg0-root 254:2 0 46G 0 lvm /
└─vg0-home 254:3 0 247,6G 0 lvm /home
sdb 8:16 1 3,8G 0 disk
└─sdb1 8:17 1 3,8G 0 part
We can try to mount it but it's not mountable as it is an encrypted container that we first need to unlock so let's unlock and mount
[yabbes@x220 ~]$ udisksctl unlock -b /dev/sdb1
Passphrase:
Unlocked /dev/sdb1 as /dev/dm-4.
[yabbes@x220 ~]$ udisksctl mount -b /dev/dm-4
Mounted /dev/dm-4 at /run/media/yabbes/usbstick.
See that it is really mounted and do some 'work'
[yabbes@x220 ~]$ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 298,1G 0 disk
├─sda1 8:1 0 500M 0 part /boot
└─sda2 8:2 0 297,6G 0 part
└─lvm 254:0 0 297,6G 0 crypt
├─vg0-swap 254:1 0 4G 0 lvm [SWAP]
├─vg0-root 254:2 0 46G 0 lvm /
└─vg0-home 254:3 0 247,6G 0 lvm /home
sdb 8:16 1 3,8G 0 disk
└─sdb1 8:17 1 3,8G 0 part
└─luks-fb31ca8e-808f-4405-a034-351ef13696ee
254:4 0 3,8G 0 crypt /run/media/yabbes/usbstick
[yabbes@x220 ~]$ cd /run/media/yabbes/usbstick/
[yabbes@x220 usbstick]$ echo "do some work"
do some work
[yabbes@x220 usbstick]$ touch newfile
[yabbes@x220 usbstick]$ cd # leave the device
# first unmount
[yabbes@x220 ~]$ udisksctl unmount -b /dev/dm-4
Unmounted /dev/dm-4.
# then lock
[yabbes@x220 ~]$ udisksctl lock -b /dev/sdb1
Locked /dev/sdb1.
# check that it's unmounted and locked
[yabbes@x220 ~]$ lsblk /dev/sdb
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sdb 8:16 1 3,8G 0 disk
└─sdb1 8:17 1 3,8G 0 part
[yabbes@x220 ~]$
# power-off the device
[yabbes@x220 ~]$ udisksctl power-off -b /dev/sdb