Well I've got to the bottom of what's been causing the problem, but it still leaves some questions. At various stages during this ongoing saga I have checked the BIOS settings, and it has always showed the boot mode as Legacy BIOS. I've never changed this or messed with secure boot or anything else. However, it now transpires that 64 bit distros are automatically booting up in UEFI mode. Why or how I don't know, and I haven't found any way to stop this either.
So if the live USB has booted in UEFI it fol...
Well I've got to the bottom of what's been causing the problem, but it still leaves some questions. At various stages during this ongoing saga I have checked the BIOS settings, and it has always showed the boot mode as Legacy BIOS. I've never changed this or messed with secure boot or anything else. However, it now transpires that 64 bit distros are automatically booting up in UEFI mode. Why or how I don't know, and I haven't found any way to stop this either.So if the live USB has booted in UEFI it fol...
So if the live USB has booted in UEFI it fol...
