Instead of getting the Press F2 or F3 to run from Live CD or Install thing when I boot from the QNX install cd, I get the “No QNX 6.1 or above filesystems to mount” error. Why is this happening? It works fine on another computer I have, but not my desktop.
Is this by any chance a serial ATA machine? What version of QNX?
Most probably the CD is connected an unsupported disk controller.
You could try pressing ESC at boot time to run a non-dma version of the drivers.
HD are IDE, CD ROM is SATA.
There is your problem
QNX has updated their driver to support more sata controler but it’s not on the CD I beleive they only support Intel chipset.
Is it possible to install from a USB stick?
I think it might, from memory the CD was changed for 6.3.2 so it could install from a CD-rom connected via USB so maybe, I said maybe.