(sorry Malcom, you get 2-copies, I forgot to change the reply-to address :) On 11/07/2016 05:42 PM, Malcolm wrote:
Hi Won't boot with disk gpt, unless it's set as hybrid?
Use gdisk with gpt;
gdisk -l /dev/sda
Wipe the gpt and set the disk to dos, plus clean out the mbr (can do this with gdisk x and z keys, destructive so if no data wanted on the disk reset the disk to dos and then use legacy boot.
Thanks Malcolm, I've actually got 2 disks I'm messing with (laptop has 3 disk bays - 1 holding the CD/DVD and 2 hard drive bays). The MBR disk has the full install, the GPT disk has just the minimal install to work with the different boot setups to find one that works.
Maybe UEFI is troublesome because the UEFI defaults to "Windows Boot Manager" and doesn't respect the UEFI boot order... there are ways around this if only single booting. Check for a BIOS update as well if want to stick with UEFI.
UEFI was incorporated by HP as 'Experimental' on this laptop (2011-2012) and disabled by default. That is what has me so confused. Win10 boots fine in Legacy mode (UEFI has always been *completely* disabled in the bios until I turned it on to test the UEFI boot) An then you get a big warning screen about the experimental state of the UEFI implementation. I've confirmed the legacy setup windows uses via both bcdedit /enum as well as msinfo32, UEFI should not be involved at all in the boot process. What concerns me is the quasi (or part) implementation that may be following some stray path set by windows that prevents grub from being seen (I know virtually nothing about the modern windows side of things) But without UEFI active in the bios, I don't see how any of the UEFI NVRAM settings could derail grub (but something is doing it). Further, if that was the case, how is it that it boots from USB flawlessly. I'll keep picking away at this one, but if anyone has any other ideas or other diagnostics that may shed light on this, I would appreciate your input as well. -- David C. Rankin, J.D.,P.E. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org