Trying to load QNX through GRUB


I am trying to adjust GRUB to load QNX 6.3SP2. I have installed Linux Suse 10.1 and I am attempting to load through GRUB the qnx OS. When I type the following at the command line:

rootnoverify (hd0,1)
chainloader +4

nothing happens. After each command, there is no error message, however, after typing ‘boot’, the computer freezes. This is the result of fdisk -l /dev/hda:

Device Boot Start End Blocks Id System
/dev/hda1 * 1 406 3069328+ 4f QNX4.x 3rd part
/dev/hda2 407 5168 36000720 f W95 Ext’d (LBA)
/dev/hda5 407 474 514048+ 82 Linux swap / Solaris
/dev/hda6 475 2355 14220328+ 83 Linux
/dev/hda7 2356 5168 21266248+ 83 Linux

Any ideas?

makeactive parameter before chainloader +4
rootnoverify (hd0,1)
chainloader +4

and it seems that rootnoverify should be (hd0,0)