This is what the retail Leopard DVD sees (or so far anything that ISN'T the USB enclosure):
I plugged the OWC Electra 3G SSD in to the external USB enclosure at the request of @phunguss :
The drive mounts to the desktop, appears in Disk Utility and in System Profiler successfully. There is my 17.4GB partition with Sorbet Leopard installed to it and the remaining disk space. So far, this has been the only way I have seen the PowerMac G5 mount the drive and access its contents:
I plugged the OWC Electra 3G SSD in to the external USB enclosure at the request of @phunguss :
The drive mounts to the desktop, appears in Disk Utility and in System Profiler successfully. There is my 17.4GB partition with Sorbet Leopard installed to it and the remaining disk space. So far, this has been the only way I have seen the PowerMac G5 mount the drive and access its contents: