I have the same identical error (obviously I downloaded the beta 8 dmg). I tried every single variation. I even tried to merge my efi with the one included in the premade one and/or the one in the bs package, but the error is always the same
Hi, I receive this error: adding agdp mode validate property, it remains stuck for a while, then rapidly writes 4 lines but they are too fast to read them. Then all disappear and the screen becomes black and no more signal of activity