Hello all, I am having a very bizzare booting issue, and not entirely sure what direction to take for debugging it.

The platform is a compact PCI SBC made by EFK.  The hard disk is a SATA drive connected to a mezzanine card.  The SATA 
interface appears to be on the PCI bus.  This SBC doesn't have any PS2 connectors on the front panel, only USB.

When there is a USB keyboard connected to the system, it boots correctly.  However, if I disconnect the keyboard and 
power cycle, it no longer boots.  I get the QNX6 boot loader, I can select the boot image still, but diskboot fails to 
find the hard drive, and I get a ".diskroot could not be located on any filesystem" error message.

It seems to me like there is probably some resource competition or something strange going on, but I'm not sure which 
direction to look.

Thanks!

Benjamin Ness