First I made my disk into fat32 form using the software PQ, and then I can find it in qnx OS, it was displayed as “/dev/hd1"and “/dev/hd1t12”, I mount it using the command"mount -t vfat /dev/hd1t12 /mnt/hd1”, and failed.
Then I give up the fat32 form, I made it to qnx4 form using the command “fdisk /dev/hd1” and “fdisk /dev/hd1t12”, and I restarted my machine, it was dispalyed as “/dev/hd1” and “/dev/hd1t77”, I mount it using the command “mount -t qnx4 /dev/hd1t77 /mnt/hd1”, failed too!