I made a breakthrough this morning after reading the "Support for EFI" thread 794, where one guy said he was able to successfully install by invocation of xen.efi directly from a shell.
When I used the efi shell override I was able to launch the xen.efi with: fs0: cd EFI\BOOT xen.efi placeholder qubes I made sure the BIOS boot mode was UEFI and not EFI+Legacy, and I booted from the USB key. I previously partitioned the SSD using a GParted Live CD and I could see all of those partitions. However I elected to delete them all and let Qubes "autopart" the drive instead. The installation was generally straightforward. There was a very long pause when the progress bar reached 790 out of 900ish, but it finally completed and gave me the Successfully Installed message. I have 2 drives but I was only asked for a passphrase once that I recall. If I was asked for one a second time I used the same value, that I'm absolutely positive of. I still have 2 major hurdles to resolve: 1) The system will not boot Qubes automatically, I must use the efi shell override to boot off the SSD. 2) Once booted I get the gray screen with a Q in the middle, and a prompt for a disk password. It doesn't accept the passphrase I was asked for during installation. If I hit the ESC key it switches to text mode and asks for a password / phrase for each drive. Entering the same value I provided during installation doesn't work, and suggests to use systemctl with a very long arg. At first I thought #1 was caused by not providing a hard disk boot option, but after adding it as the only option I am directed to setup. I noticed that there are 2 devices that seem to point to the same EFI partition. Only 1 will start the OS using: fs0: cd \EFI\Qubes xen.efi I used no args. I presume it gets the details from the xen.cfg file. So here I am at the next hurdle to overcome. Time to google again, and should I not find any help from that will try: Re: Great difficulty 1) Using recovery/rescue option of installer 2) Going through installation once more Any and all suggestions welcome. -- You received this message because you are subscribed to the Google Groups "qubes-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to qubes-users+unsubscr...@googlegroups.com. To post to this group, send email to qubes-users@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/qubes-users/a5786a4c-33db-4153-96b2-9361fb287462%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.