[nmglug] UUID

[Brian O'Keefe]

Hello All

I'm revisiting an issue I expressed many months (if not years. I have an 
ASUS laptop in which I wanted to install a 500GB SSD in the vacant bay. 
I said at the time that the motherboard is up side down so I can't 
remove the existing drive (a SSD PLUS M.2 NVMe^TM SSD,) and replace with 
the 500GB SSD drive. I was able to get the regular SSD into the bay and 
plug it in. It shows up in the BIOS as two separate UUIDs (I have a 
bootable 313 GB partition and a free space 193 GB partition. When I 
choose to try and boot the 313 GB partition the computer reverts to the 
drive stick. I checked the UUIs and the 313GB has a different UUID than 
the internal stick drive but the same as the 193 SSD. So for some 
reason, even though I change the boot order so the 313GB boots, the 
computer reverts to the onboard UUID and boots that. I don't know how 
the 193 GB drive got the same UUID but it did.

When I boot the computer I get the option of booting Ubuntu 20.04 but 
16.04 is also listed. That is the 313 GB which I was planning to wipe 
and install 25.04. Perhaps I can wipe it with GParted and try installing 
25.04 on it.

Sorry about the long screed! I'd love to get the 313GB to boot 25.04 so 
I can see if it works on the old cloned 313GB drive with 16.04. If that 
worked I'd have a current back-up (I have one, the unbootable 313GB 
drive which won't boot). I would then upgrade the 313 GB drive after 
cloning the onboard drive. If the cloned 313GB drive updated then I 
would have my current mountains of data on the 313GB drive. But if it 
won't boot now why would it boot later, after all of the work?

Many thanks if anyone wants to help. If not I completely understand

Best

Brian
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