On 11/1/22 14:37, Robert McBroom via users wrote:
No mention of MBR as the drive is GPT. Totally UEFI system, four
drives
three OS. I was suspecting a problem with the boot sector, but on
removal of all drives but the one, it boots. Adding the drives one by
one to see the point of digression.
UEFI doesn't use a boot sector.