MP 1,1-5,1 Booting off from NVME, works great... now trying to set up time machine, and it won't show up as an option

[ADDvanced]

5.1 Booting Mojave from NVME, works great

I have a 1tb External Backup Drive.

Want to time machine my Mojave NVME Drive to the external 1tb drive. Go to setup... it shows all my disks as options EXCEPT my boot disk.

I have another NVME drive as a working disk, that shows up. Only one missing is my boot drive.

 

[jbarley]

Time Machine setup will never show you the boot drive because it only lists drives available to backup to (destination).
You cannot back up your boot drive to itself, hence it's not shown in the list.

 

[ADDvanced]

Lol. I guess I was confused. It would be a lot cooler if they had a source and destination type setup. So the boot drive is AUTOMATICALLY included, and I just have to pick the disc to where the backup is GOING? Alrighty. I guess I'm an idiot.