Installing Mavericks on a partition

Discussion in 'OS X El Capitan (10.11)' started by larn555, Dec 11, 2015.

  1. larn555 macrumors newbie

    Dec 2, 2015

    I've run into a few problems with some pro audio applications on 10.11.2, so I decided to make a partition and install an older OS X on there, so I downloaded Mavericks, but when I try to open the installer it says:

    This copy of the "Install OS X" appication is too old to be opened on this version of OS X.

    Any ideas?
  2. simon lefisch macrumors 6502a

    simon lefisch

    Sep 29, 2014
    Try making a USB installer with Mavericks, shut off your comp, press and hold Option and power up the comp and choose to boot from the USB installer. From there you should be able to choose the correct partition to install Mavericks to. Here's a link on how to make a USB installer:
  3. dianeoforegon macrumors 6502a


    Apr 26, 2011
    Use DiskMaker X to create the installer on a USB drive or create a small partition on your external drive. DiskMaker X will copy the Mavericks installer without having to launch it.
  4. larn555 thread starter macrumors newbie

    Dec 2, 2015

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