Similar Firewire Issues Under Snow Leopard 10.6.8
I'm posting this to see if it helps anyone with the FW issues they have been having under Lion. I'm not running Lion, I'm running SL 10.0.8.
I have two Macs, an iMac4,1 and a MacBookPro5,2. I also have a G-Tech 320MB FW 800/400 drive. If I connect the drive to the MBP, no mounting issues. If I connect it to the iMac with the supplied 800>400 cable, it will not mount, BUT if I sleep the iMac and wake it up, it mounts every time. This is with the same drive.
So, I don't know if sleeping and then waking is a workaround for anyone here.