OK, so I finally managed to boot the 12th's snapshot on an EFI only T430. Weirdly enough one time it just worked, but when I tried again I got the same results as the 9th's snapshot installer.
It seems that sometime the bootblocks get loaded, sometimes not, 9 times out of 10 I get http://i.imgur.com/Apfoe8r.jpg, then suddenly it will just work. Any idea why a successful boot appears to be so random? Also, is it normal that the resolution is a tiny cropped box in the middle of the screen? Anyway, once I'd apparently (and very much obliviously) cast the right mystical invocations to successfully boot the installer, I followed Chris' very clear and useful instructions, with some slight alterations, to do my usual encrypted softraid0 setup on one disk. One point I should note is that the newfs_msdos command was not available in the installer's path, I had to wait until after install and then call the binary from the installed sets - ie) /mnt/sbin/newfs_mkdos. Anyway, apart from that tiny hiccup, everything else worked as expected. However when I tried to boot the new install I ended up almost immediately at the ddb prompt, as pictured below: http://i.imgur.com/1sfqYQ8.jpg http://i.imgur.com/OcRNUyI.jpg I'm not a developer and don't know how to use ddb, so is there anything else I could do to provide you guys information and help debug the issue? When I rebooted again it seemed the process hung in a slightly different way: http://i.imgur.com/1Am1qNB.jpg Hope some of that might be helpful to some of you EFI wizards, and if not, I haven't nuked the disk yet, so if there's any ddb poking you'd like me to do, let me know. Cheers! -- 0x2b || !0x2b