Skip to main content
Home▸ Forums▸ 68kMLA▸ Internal floppy drive on iMac G3 - Firmware downgrade — #51
Post #51 by dougg3
Source Forum68kMLA
CategoryTroubleshooting
Post DateSun, 2 Jun 2013 - 17:46
Original URLhttps://68kmla.org/bb/threads/internal-floppy-drive-on-imac-g3-firmware-downgrade.28166/
Post
Well, I extracted the .Sony and .MFMFloppy drivers out of the Mac OS ROM file version 1.1.5. I'm pretty sure they're complete anyway...can't 100% guarantee it because I don't totally know how to parse the ROM resource list. Anyway, interestingly enough they appear to be written with 68k code rather than PowerPC.

I guess at some point we could try to figure out how to load drivers and see if loading them would re-enable the floppy drive in a newer OS version. Could probably be done from an extension or something rather than patching the Mac OS ROM file. It could also fail miserably though :-) If you're ever interested in trying it, let me know and I can try to figure out how to manually load the drivers from an extension.