6.0 BETA2: SATA HDD not detected

[victor cruceru]

Hi all,
I've just tried to install 6.0 BETA2 on a PC with a SATA HDD.
I have no issue installing and running 5.4 - RELEASE on the same hardware.
Here it is what is detected by the 5.4 installation:
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atapci1: <SiS 964 SATA150 controller> port 
0xef90-0xef9f,0xefe0-0xefe3,0xefa8-0xefaf,0x
efe4-0xefe7,0xeff0-0xeff7 irq 17 at device 5.0 on pci0

ad4: 76319MB <ST380817AS/3.42> [155061/16/63] at ata2-master SATA150
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While the SiS 964 SATA150 controller is also detected by the 6.0 BETA2 
install, the ad4 HDD is not detected.

Any help is greatly appreciated.
Thanks,
victor cruceru