grub install problem on usb floppy

[gm c]

I have a new laptop that I have installed 3 linux distros on
partitions above win xp. I am trying to install grub to usb floppy to
boot from. I am using mepis live cd. I get a root terminal and type
grub to get grub prompt. I have previously copied stage1 and stage2
to floppy at /dev/sda--/mnt/floppy. grub> find /grub/stage1 works ok
but 
grub> setup (sd0) wont find device. I tried (fd0) , (sd0,0)
,/dev/sda.

To boot from the hda I made a small partition (hd3) below 1024
sectors and installed grub to it and change the active partition to
(hd3) but some thing seems to force (hd1) to be active. 
Any thoughts??
mike 


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