This question has probably been asked numerous time on this site but does anyone know if I can run OS9 or classic natively on any of the G4 MD macs.
I have a dual 1.47 and a single 1.25 ~ well actually I have four of the latter.
I did manage to pick up some original install DVD's for these computers and I get the impression that I cannot run the classic mode natively ? It seems to run in emulation ?
Does anyone know how to get OS9 on these computers without installing OS X ?
Jeremy, Mac OS 9 will run natively on any G4 MDD with FireWire 400 ports. Models with FireWire 800 ports are OS X bootable only. You can download a copy of OS 9 for these machines via Macintosh Garden:
I was watching a video on You Tube where the guy says things like he crashed the firmware rom from a G4 1.25 on to a G4 1.42 dual firewire 800 and he gets OS9.2.2 to boot ?
I have no idea what he is talking about as he talks in street slang.
Have a look at this video and see if you know what he means or he's talking about.
It may well be possible to overwrite the ROM on a dual-800 to boot OS 9, I've never tried it. It's also a really good way to brick your machine if something goes wrong. G4 MDDs with FW400 are easy to find, personally I'd recommend sticking with supported configurations.
I wouldn't know how to do it or even go about overwriting rom's
I have both machines and I do have a processor dual processor upgrade that will work on the single 1.25 so I much stick with that.
It only because I need to get rid of some of my macs and I wanted the fastest machine capable or running OS9.
All G4 Macs run OS 9 very well, a single 1.25GHz G4 will be quite zippy. Mac OS 9 itself doesn't use the second processor, but it's available for third party software. OS X does take advantage of multiple CPUs.