Finally I found a shop in 298 selling bootable SATA adapter, the shop keeper is a 4x years old man but he is very experienced computer guru, we talked a bit on adapter too.
The adapter is very cheap, only $105 with 2 SATA port, the chipset is Initio 1622, with a boot ROM supporting RAID0 and 1, when I plugged in the adapter and boot, wow! I saw the RAID BIOS, which means it should be a bootable adapter.
Normally a bootable adapter costs nearly $200 as I saw those Magic Pro adapter featuring Silicon Image chipset.
Although the Linux kernel driver said it is HIGHLY EXPERIMENTAL, looks like it is ok to boot and use at the moment, so happy.
