I have a buildfile for QNX 6.1.0 which contains the following line for hard drive detection:
devb-eide blk automount=hd0t79:/,cache=2m,delwri=5 &

My hardware (x86) is quite recent though with Intel 82801HB SATA controller - vid 8086, did 2928. My BIOS is set to use 
the SATA in a "Compatible Mode". I can attach two SATA drives to my system.

Now it seems that 6.1.0's devb-eide version has problems when there are two SATA drives connected. If I disconnect one 
of the SATA drive, my 6.1.0 ".ifs" image boots fine. I got this hint after searching on one of the QNX forums here. It 
seems that there was some kind of bug when two SATA drives are connected.

Does anyone know how can I fix this problem of SATA detection in 6.1.0 without having to use a more recent version of 
QNX?