Question: I have a server with only a CD Rom drive. From what I can tell the bios doesn't allow booting to USB devices. I want to load an OS which is red hat linux. I have the bootable DVD for the OS/Software, but like I said I only have a CD Rom. I have created an ISO of that DVD.

Earlier I was given advice from members to do a pxe boot or network boot.

I have used bart PE to build a boot CD for purposes of ghosting. Can I build a bart PE disk that will point to a usb drive that has an ISO on it and kick it off?

Or what would be your best advice and directions for doing a network boot? I have never done that before, so there will be a learning curve for me.

I would like to do it with the least amount of effort, as this is just a side self training project I am doing.

The server is a DL320 G1 I believe, so it isn't the newest by any means, but it is just for testing and lab purposes so I don't need high end performance. I tried finding an updated bios for it to see if it would support booting to USB, but wasn't able to find one that would update the bios.

Looking for any advice that might help me out.

Answer: 
The quickest and easiest way to do this would be to just go out and buy a 20$ USB DVD drive. I've booted all sorts of servers off of those devices when there was only a normal CDROM drive installed.
Doesn't Red Hat have a CD Version you could download and burn to CD? I haven't installed it in a long time so I don't know off hand.