SGI Indys require an SGI disk label in order to make the system bootable from hard disk. It can be created in the fdisk expert menu. The thereby created volume header(partition number 9) should be at least 3MB large. In order to be able to store several different kernels in it a size of 10MB is recommended. If the volume header created is too small, you can simply delete partition number 9 and re-add it with a different size. Note that the volume header must start at sector 0.