I'll start off by saying I'm new to this forum so if I break any rules as regards to threads and such I'm sorry. Okay, so I recently became the proud owner of an iMac G5 and decided it would be a good idea to install 10.5 Leopard. Now, I have faced several problems in attempting to do this. Since my iMac cannot read dual layer DVDs I decided to try firstly to make a bootable USB with the installer on it, however this proved to be a failure as the mac did not see the drive in the boot menu. I tried to use openfirmware to force the mac to boot from the USB drive but despite using the correct startup keys, the mac booted straight into the OS. Then I tried to reduce the installer to work on a single layer DVD using the most commonly suggested method online. I made several attempts at this but when restoring the final sparse image an error 22 occurs. I don't know what to do anymore. Any suggestions?