You may want to see what spare parts you can find on ebay to see if you can drag it back into operation.
I am using an old Powerbook G4 ***. that has a bad motherboard that will no longer power an internal HD. The firewire port is also gone.
I want to install Linux on a CF card in the PCMCIA slot and boot to Linux from it.
The PCMCIA device and USB devices to not appear in the list of available devices in Open Firmware.
It appears I need to figure out some way to mount the devices first so that I can boot to them. Can anyway help?

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