[Soekris] Newbie Mistake with net4526?

[Joshua ChaitinPollak]

Hello, I'm a bit of a newbie to single board computers, and I'm  
afraid I may have made a critical mistake.

I'm trying to install Gentoo linux onto my 4526, and have been able  
to get it to boot via DHCP/TFTP/NFS. I was trying to configure a file  
system for the flash rom, but apparently I don't know how it works.

I used fdisk /dev/hda and created a single partition using the whole  
drive. I tried to install grub, but it failed, so created a cramfs  
image and tried to install that to /dev/hda1 like this:

cat /cramfs.img > /dev/hda1

That seemed to work, so I tried to mount it, and saw this:

$ mount -t cramfs /dev/hda1 /mnt/
mount: Mounting /deva/hda1 on /mnt failed: No such device

Thinking I needed to have the kernel re-load the partition table, I  
power cycled the board. Now comBIOS Monitor counts down for 5  
seconds, but the PXE Bootloader doesn't start. I was under the  
impression that boot loader wasn't on the flash, but I guess I was  
wrong.

How can I recover my board? After I do, how do I get a bootloader and  
root file system onto it safely?

I hope someone can help!

Thanks a lot,

-Josh