Ok Intel seems to have decreed the removal of Legacy boot from Gemini Lake Platforms.
I just tried booting my T530 Thinkpad with that image, I usually use VBox to check images, and have the T530 set to boot in legacy mode. I had the same issues. I think it may be a kernel issue related to video in UEFI mode. Or maybe a grub thing, as I had an issue previously......it's mentioned somewhere earlier in the thread, and delayed the release of a RTAI iso. So the boot issue is confirmed, sorry about the issue and for not thoroughly checking and also thanks for the feed back and bringing it up.
I'm going to boot a RT_PREEMPT image and report back. In the meantime when you get the grub screen press e to edit the entry and add nomodeset to the kernel command line and if quiet & splash are there remove them. I'm not sure if this will work but lets rule it out anyway.
UPDATE:
Ok booted a RT_PREEMPT version with the T530 set to UEFI only mode, and am typing this from a Live Session. There is a new RTAI kernel mentioned on the forum. I'll have a look at the config and see if intel GPU driers are enabled in the kernel (which I'm thinking maybe the issue). Towards the end of the day I'll experiment and see what I can come up with.
But for the time being, my Beagle, known as The Butter Dog, needs time at the park.....and the Beagle must be obeyed.
