Yosemite on startup SSD, Mavericks on HD?

Discussion in 'OS X Yosemite (10.10)' started by wmmfcr, Jan 13, 2015.

  1. wmmfcr macrumors newbie

    Joined:
    Nov 6, 2014
    #1
    Hello, all,

    I have an early 2009 Mac Mini and a couple of years ago I replaced the optical drive with a small SSD to use as the startup drive, leaving the original HD for media files, libraries, etc. They work great together, without quite being a homemade Fusion Drive.

    Tonight I was looking at the Startup Drive option under System Preferences and realised that when I upgraded to Yosemite last year, it only upgraded the SSD, leaving the HD still listed as running Mavericks. I don't perceive any problems in daily use, but I just wondered if it was preferable to have both running the same OS, and if so, how to do that.

    I ask here because I can't seem to find the right Google terms to get an answer. Thanks in advance for your help.
     
  2. simonsi macrumors 601

    simonsi

    Joined:
    Jan 3, 2014
    Location:
    Auckland
    #2
    What is on the HDD is only relevant if you want to be able to boot from it.

    I have a backup bootable Yosemite partition on my Media HDD but primarily boot from Yosemite on my SSD. When I upgrade the SSD OS then that gives an easy regression path if anything doesn't work well enough.
     

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