On 2020-07-27 21:05, Peter King via talk wrote:
Well, no joy in Mudville.
I disabled Secure Boot by deleted the PK key, which did indeed result in the motherboard BIOS recognizing that Secure Boot was disabled. And, it recognizes the NVMe drive as the boot device, indeed the only boot device, which is good.
But ... despite all that, it still does not boot. I tried it with CSM on and CSM off, still no boot. Efibootmgr this time *did* list the NVMe drive as an EFI option (after the USB flash drive), but still no boot. Tried it with various options enabled and disabled, still no joy.
Damned if I can figure it out. I feel like I'm getting closer ... but no way forward seems obvious. Any ideas? Any reason to think that another motherboard might be less difficult to get up and running?
Try installing rEFInd to a USB stick, then boot from it. It will (hopefully) autodetect your various EFI partitions and build a list of target systems that you can boot. The USB image is available here: https://sourceforge.net/projects/refind/files/0.12.0/refind-flashdrive-0.12.... Since you managed to boot from a USB stick before, this might be enough of a bodge to get you going. Cheers, Jamon