How do I temporarily mount an Ubunutu OS drive to pull data from it?

[protectron]

Below is the error I am experiencing. I cannot install LVM2 package due to lack of 'apt'.
How do I mount the drive?

 

[jgreco]

You don't. I'm pretty sure LVM2 is not installed because TrueNAS uses ZFS. Put your disk into a PC, mount the filesystem, and then mount the NAS share or use netcat to bap it across the net.