Leopard Network Install?

I have the DMG provided by Apple of Leopard. My company bought it to run on all our iBook G4s, which don't have DVD burning drives. I have access to a Linux server and a bootable USB drive. I tried to do the install process from the bootable drive, but the iBook apparently does not recognize the option to boot from USB. The only kind of burner that I have that burns DVDs can only handle single layer, but I don't want to use what the pirates have been using and removing Xcode. Is it possible to upload the DMG to my server and do the install to the iBooks via the network? I'd appreciate any advice or instructions anyone can provide. Thanks in advance!