Contribute
Register

Solved > Dell Optiplex 790 - Can’t get Catalina to Boot from External Drive.

Joined
Jun 7, 2020
Messages
3
Motherboard
None yet
CPU
None yet
Graphics
None yet
Hi all,
This is my first build so forgive me if I miss any info you need.
I managed to get as far as installing Catalina onto an external 500GB USB drive. Trouble is I cant get it to boot from it.
I installed UNIBEAST in Legacy which was the only way to get it to start up and install.
Installing Catalina onto the external USB drive went smoothly.
Now I’m not sure how to get it to boot from the external USB drive.
In the BIOS that last thing I tried was moving USB Storage Device to the top of the Boot Sequence. Any help would be awesome.

Side Notes: Not that it matters but when I boot in Windows 10 it doesn’t see the 500GB external USB at all.
I’m currently waiting for delivery of the following SSD - Crucial 120GB and a GPU - 1GB AMD RADEON HD 6450.
Maybe I should wait until I get the SSD.

Any help would be awesome.

Cheers
Alex
 
Joined
Jun 7, 2020
Messages
3
Motherboard
None yet
CPU
None yet
Graphics
None yet
I missed a step in the installation. I am also installing again onto the Main C drive. Which mean no more windows. So sad.
 
Top