Cannot load SD with RC2 or RC1

[SWAT]

Most of custom BIOSes not pass the Holly (ASIC chip in DC) protection checking, it's means the G1 devices can't works.
For now, from custom BIOSes, protection passes only sd_loader_with.bios. But this BIOS have some problem, see comment for it.
Once somebody can break down the BIOS protection checking, we will not have problem with the BIOS for any device on the G1 bus.
But so far, the situation is not good for IDE+BIOS mod users