You need (as I know) to use irix to prepare the disk.
But read the following links:
> OK I'm having some problems here.
> I recently received an SGI Indy (complete with all hardware except disk)
> and I installed a blank 1-GB scsi disk (no disk errors reported on bootup)
> but without sash I cannot netboot linux.
> My question is this: How can I netboot linux (using bootp, tftp, and nfs,
> all confirmed working)? I the kernel and the hardhat kit, but I can't get
> the Indy to load the kernel.
> I have no IRIX kits available, nor a CD-writer (although I have
> access to a CD-writer if needed). PLEASE help!
> Thanks in advance!
> Ian Cooper