Do I need an existing OS before booting UNRAID?

[dperk11]

I have a brand new PC that I'm going to put UNRAID on.  It doesn't have an OS yet, but I plan on putting Linux on it.  I created the USB drive and it won't boot UNRAID.  What am I missing?

[trurl]

Unraid IS the OS. 

 

What happens when you try to boot? 

[Ystebad]

Did you go into bios and change boot order - you have to put the USB drive as first.

Edited May 27, 2021 by Ystebad

[dperk11]

Yep, drive inserted, turn computer on----boots to bios.  Bios shows the UNRAID flash drive as the boot priority.  Hit save, reboot, boots back up to BIOS.

[JorgeB]

Enable legacy boot on the board BIOS or enable UEFI boot on Unraid by renaming EFI- to EFI on the flash drive, this can also be enable when creating the flash drive with the USB tool, but default is disable.

[dperk11]

I've tried all of those things.  Still Nada

[Frank1940]

Try looking at this tutorial from someone who has a lot of knowledge in this area:

 

     

 

IF this does help (or you haven't figured the solution), post up more info about your MB.   I seem to recall that there are a few MB's whose boot options are not quite what is normally found.   You might also post a picture of the boot option BIOS screen.  Please make sure that it is readable. Please attach the picture and don't post a link to a third party site where you have stored the picture.  (A lot of folks are a bit gun sly about these type of links.)  

[micro-nerd]

Is it a new computer build? If so, it is possible that you may need to update the BIOS on the motherboard. I know I had to do that with a B550 board and my Ryzen 5 5600X. Nothing would boot. It would go straight to BIOS everytime

[Gragorg]

Did you run the make_bootable batch file on the USB.  Last time I had to restore my USB I had to.