My motherboard is GA-78LMT-S2 (rev. 1.2), latest BIOS. This problem applies to both 6.0-release and -current.
I attempted to boot with install60.fs dd(1)'d to a USB key, but when I turned on the computer with it plugged in, the BIOS panics at first sight. Can't even get into the BIOS menu, before actual boot of anything. By panic I mean the screen freezes, and keyboard inputs are ignored. This does not happen when I plug it in after a proper OS has booted, only during the initial pre-boot stage. After many, many hours of trial and error, I was able to pinpoint the cause of my BIOS choking to the BPB of the VBR of install60.fs. So, quite literally, the solution was to open install60.fs with a hex editor and manually zero out the bytes in the range 0x80003 to 0x8003d (note that the partition offset happened to be 0x80000), and magically the thing will now boot. My guess is that the BIOS "under-the-hood" will see that a valid BPB exists in the VBR, and tries to do some sort of processing assuming that the underlying FS is some FAT,variant or whatever the case may be. But, being that the data is actually UFS, the BIOS simply bugged out. Proposed solutions: 1) simply zero out the BPB within biosboot.S (do we even need it in the first place?) 2) provide an option to do that in installboot(1)
