No. In fact that release is now too old to complete this task.
So you definitely want 22.04
Ah, OK. My bad. I failed to point out …
the package uuu is in “universe” but in the Live Boot environment only “main” and “restricted” are configured by default.
So you need to do
sudo vi /etc/apt/sources.list
(add the following line)
deb http://archive.ubuntu.com/ubuntu/ jammy universe
sudo apt update
sudo apt install uuu
which uuu
and you finally get
/usr/bin/uuu
Yay!
NB: I have just done this myself (and am posting this from the Live Boot). So it definitely works.
I would imagine that any of these changes to the Live Boot environment will be lost on reboot. So best to see whether you can actually get Jumpdrive booted on the Librem 5 without further rebooting of the host computer.
Edit: Update …
The above issue applies only to certain versions of Ubuntu. The above definitely applies to Ubuntu 22.04 (jammy).
The above doesn’t apply to Ubuntu 23.10 (mantic).
I don’t know which version of Ubuntu made the change.