Leopard on G3

Discussion in 'Mac OS X Server, Xserve, and Networking' started by walsh1996, Jan 17, 2011.

  1. walsh1996, Jan 17, 2011
    Last edited: Jan 6, 2014

    macrumors newbie

    Jan 17, 2011
    Gallatin, Tennessee
    I need a patched or hacked osinstall.mpkg file for the leopard installer, so I can put it on my iMac. Any help would be strongly appreciated.
  2. macrumors 68030


    Oct 15, 2008

    You don't want to go there. Leopard runs bad enough on G4 Macs (it CRAWLS on 1GHz G4s/1GB RAM), so even if it were possible, you wouldn't want to use it on weaker hardware.

    Seriously, don't waste your time on this. You'd be better off installing Linux on that machine. And PowerPC Linux on Apple hardware is not very convincing either, especially not if you have an nVidia graphics chip in your Mac.
  3. macrumors 6502


    Dec 8, 2009
    That's complete trash! My 733 MHz Quicksilver tower ran leopard great, and it only had 512 mb ram! My 1 GHz eMac runs it just fine too!
  4. macrumors 68000

    Feb 13, 2009
    United Kingdom
    The G3 CPU cannot install or run Mac OS X Leopard. 10.4.11 is the highest your machine can go to (I run 10.5.8 on a 450Mhz G4, and while tolerable, I wouldnt want to have it full time) - on a G3, if it did run it would be useless - but it wont run, the OS physically requires the AltiVec unit of the PowerPC G4 processor.
  5. macrumors P6


    Jan 24, 2010
    10.5 can run on a G3, but it is very, very, slow and very hard to do. You have to get one of the developer betas and get the kexts out of it, then mod them to work on the retail version. Then get it onto the G3's hard drive. Its just not worth it, because it'll run very slow, even on the most powerful G3's ever made.
  6. macrumors regular

    Dec 17, 2008
    Not only that, but...

    I realize this is in the eye of the beholder, but I think OS Tiger was the most beautiful OS Apple ever made. After that they went more and more minimalist/retro.

    Why not stick with the best? There aren't that many features you really miss from Leopard are there?
  7. macrumors 6502


    Dec 10, 2008
    Tiger was good, with two exceptions:

    - Leopard's Finder is a lot better.
    - Brushed metal.

    On topic, I contemplated doing this with my 600MHz G3 iMac (1GB RAM). I decided it wasn't worth the hassle (and I have a degree in computing science) and kept Tiger on it.

    Incidentally, G3's can only run iTunes 8.2.1, aka the last version before Apple ballsed up the interface.
  8. macrumors G4

    Mar 4, 2006
    Panther is the best OS for a G3 IMO. After that everything felt a bit sluggish.
  9. macrumors 68000

    Feb 13, 2009
    United Kingdom
    Evidence please - I have done all that to get it to run on a "g3" (B&W with G4/450 upgrade) - but with the original G3 CPU it refused to boot - it stayed at the loading screen for 4 hours, after which point I got bored and turned it off.
  10. macrumors P6


    Jan 24, 2010
    I'm unable to find the sources right now. But I assure you Leopard can run on a G3 Mac. You just have to do massive file modding, such as replace the kernal, swap out "newer" drivers with WWDC 2006 versions, and get it on the G3 Mac. My guess is you missed some steps or didn't swap the drivers correctly.
  11. macrumors 6502a


    Dec 22, 2004
    Huber Heights, OH
    installing leopard on a g3

    What i have been able to do is use another ppc mac (g4-g5) and install leopard using a firewire encolsure (or the like), popping that drive out of the enclosure and into the g3 mac. However, i would agree with the rest of the posters, that leopard is SUPER sluggish on a g3, Panther was great for that line of processors!
  12. macrumors regular

    Jan 18, 2011
    Surely that just left you with the white screen/apple logo once you tried to boot it?
    For what it's worth, you can run itunes 9.2.1 (I think, double check on lowendmac.com though) on a G3, which gives you a few more features (like home sharing)
    I think someone got leopard running on a beige G3, via numerous hacks involving the beta version. Can't recall if I saw it on modmac, or macmod, or something, or http://www.xlr8yourmac.com/
    But, as has been said, Tiger is probably your best bet
  13. macrumors 68040


    Mar 4, 2005
    .. London ..
    Leopard is the oldest OS I'll seriously consider using. Why? Time Machine. Worth it all.

    Old macs used hard drop like flies - I've seen 5 iBooks die through motherboard / hard drive failures. Not a problem with Time Machine running. They were used hard though - daily use for 5 years.

    Another iBook lastweek just semi-died - battery shot, and dvd drive died. It was mainly used for watching DVDs so I may be able to rescue it by swapping out a DVD player and battery from one of the dead iBooks tomorrow.

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