No FireWire drive of any kind is every bootable on a B&W under any circumstances or OS version. Ever. It isn't a problem with 10.2 or OWC or your firmware. It's not supposed to be bootable according to Apple's design and specs. Don't try this at home (or any where else). I don't get how your startup disk problem, at all. It should never have been an option in the preference panel. Was this drive formerly bootable when connected to the IDE bus, then moved to a FW enclosure?? 10.2.x doesn't play well with the built-in FW module on the B&W (and, probably, the Yikes/PCI Graphics G4s). I also had drive not recognized/file system corruption problems with both my FW DVD-R/W and hard drives when they were connected to the built-in ports. I've seen a number of reports of this on troubleshooting sites. I don't have any OWC FW components. My solution, as posted elsewhere, was to by a PCI card and run FW (and USB) off that. On Thursday, December 12, 2002, at 06:49 AM, Albert W D'Amanda wrote: > On Thursday, December 12, 2002, at 09:06 AM, Eugene Lee wrote: > >> Mercury Elite Pro from OWC, which uses the Oxford 911 chipset > > I have the same enclosure with an IBM 60GXP 40GB installed > > I used it connected to the FW port of my B&W Yosemite/ G4 upgrade CPU > / X.10.2 Jag > > Some things you should know > > * It is NOT bootable on my B&W FW port > > * No known problems with OS 9.2 > > *But two problems occurred with X.10.2 Jag