help: failed to use qemu

[PowerMan]

I do it as the follow steps:
1. download QEMU from  http://bellard.org/qemu/qemu-0.9.1-i386.tar.gz
2. install it
    tar xfz qemu-0.9.1-i386.tar.gz -C /
3. download rtems floppy image from ftp server :
    ftp://ftp.rtems.com/pub/rtems/qemu/i386-pc/rtems-boot.img
4. download ftp://ftp.rtems.com/pub/rtems/qemu/i386-pc/rtems-grub.cfg
    and copy it to my root directory /
5. mkdir /capture
   cp hello.exe /capture/capture.exe
6. run qemu
    qemu -fda rtems-boot.img -boot a -hda /dev/sda
but the capture.exe (which is actually helloworld I build with rtems-4.7.3)
does not run as I excepted.
This capture.exe could run on my host by modifying /boot/grub/menu.lst

I type the following commands in grub:
grub> set root=(hd0,0)
grub> set kernel=/capture/capture.exe
grub> boot

then grub told me:
error: no loaded kernel

I type the following commands in grub:
grub> set root=(hd0,0)
grub> multiboot /capture/capture.exe

then grub told me:
error: Couldn't open file

Could somebody help me?

My host is openSUSE 11.1, my disk information is:
/dev/sda1              3091312    516528   2417752  18% /
udev                    252876      5428    247448   3% /dev
/dev/sda8              3605268    153972   3268160   5% /home
/dev/sda7              1130540    221192    851920  21% /tmp
/dev/sda9              6412052   3541120   2545216  59% /usr
/dev/sda6              1130540    193556    879556  19% /var

I type the following commands in grub:
grub> ls

then grub told me:
(fd0) (hd0) (hd0,0) (hd0,4) (hd0,5) (hd0,6) (hd0,7) (hd0,8)

they didn't match my host disk partition number
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