Assuming that your PC0 is in Storage/DosDrivers, move it to Devs/DosDrivers to mount it automatically on boot-up.
BTW, why did you call it PC0 ? PC0 is for the internal floppy disk drive. I would have called it CF0 or something like that. Or MY_BELOVED_COMPACT_FLASH_DRIVER. But not PC0.
Bye,
Thomas
