Installing OS 9.1 Update on old G3

Discussion in 'Mac Apps and Mac App Store' started by Arielle, Jan 12, 2004.

  1. Arielle macrumors member

    Oct 2, 2003
    Columbia University
    Help- I've downloaded from 3 different sources the OS 9 to 9.1 updater for my trusty old G3. It gets to a certain point in installation, then claims a checksum data error! I DID everything suggested before installation, including turning off all 3rd party extensions.

    What now?? I need to upgrade to OS 9.1 to run an important program.

  2. crazzyeddie macrumors 68030


    Dec 7, 2002
    Florida, USA
    OS 9.1 isnt supposed to be a free upgrade... where exactly are you downloading it from?
  3. joker2 macrumors 6502a


    Feb 19, 2003
    DC area
    Did you upgrade it to 9.0.4 first?

    edit: seems that you don't need to do that step first. See ASU #75288 for the downloads, and yes, 9.1 is downloadable.
  4. MacsRgr8 macrumors 604


    Sep 8, 2002
    The Netherlands
    I would try to download it again.....

    9.1 is a MUST update over 9.0.
  5. Arielle thread starter macrumors member

    Oct 2, 2003
    Columbia University
    Yeah, it's free...

    So, I tried d/l from and 2 other sites. Think I got 2 diff. disk img versions. Both bombed mid-install. I will try the 9.04 earlier update first, but I am no longer at parent's place Upstate. Next weekend I will do this one first, to see ifI can "ease" the computer to taking it. Funny thing is, I had it installed on there before, no problemo. But I wiped the disk and re-installed from 9.0 disk. Back to square 1.

    I'll post back in a week and let ya know how it turned out.

Share This Page