I have been trying this all day, following every advice on differrent threads, but I can't seem to boot in legacy mode.
- originally created an UEFI compatible USB and installed unraid 6.10
- using unraid for 3 months, without a problem
- when trying to boot to unraid OS GUI mode (using external monitor), I get the famous black screen with black cursor
- when passing through a GPU in W10 VM, it doesn't work - famous error 43 or something....
So, naturally I tried changing the boot from UEFI to Legacy:
- CSM was already enabled in BIOS
- added "-" to EFI folder on the USB - but been getting "not bootable disk" message on startup, no matter if I select the USB as a first boot device, or pressing F11 and manually selecting the USB to boot (not UEFI USB)
- ran "Make bootable.bat" as administrator in Windows - same result on next boot (not bootable disk)
- tried all USB ports on the motherboard (sadly all usb 3.0) and USB 2.0. front port on the case - same error
- changed back EFI- to EFI, changed primary boot to UEFI USB, boots normally. Went to flash setting in unraid and unticked UEFI support (I know it does the same, but figured there may be something more to it). Same thing (disk not bootable) - either with 1st boot order USB device or hand picked USB boot device from F11. Ran make bootable again - same thing.
I'm slowly loosing it. Renaming the USB folder back from EFI- to EFI and setting UEFI USB as 1st boots device works like a charm.
Any Ideas?
If the USB is corrupted somehow - wouldn't it be corrupted for UEFI boot also? I haven't done any modifications (or backup/restore) to the USB otherwise in between...