Bind mounts on Ubuntu & Docker?

[4r5hw45twh]

The easiest thing to do is open up the Disks app. Find your hard drive. Select the largest partition and it will have the UUID number there.

You'll see
Size:
Contents:
Device:
UUID:
Partition Type

So I should use that UUID and not the one from Terminal? When I use Terminal, it spits out one (that was posted here already) and looks just how the guide's looks. On Disks app, it's only 16 characters total.