hd not booting

[Jeremy]

is one not allowed to run a hard disk on one system, plug it into another, and go well? My friend ran a 6GB HD in his 1700+ with no problems. When we plugged it into a lowly 100MHz Pentium, the BIOS autodetected it with no problems (i think 8.4Gb is max). But the POST hangs after the floppy, indicating "no os found". Is it because it's fat32? can i not use it on a 100MHz system? Do i have to fdisk it?

[aagiants]

Umm When u say, it boots find on the 100 MHZ system.. Is this when u make it a slave??

Is nething installed in the HDD?

On the primary System, Is this the master? if so then you have to install a OS on it