Left over "OS X Base System" disk image

Discussion in 'OS X Mavericks (10.9)' started by yippi, Feb 19, 2015.

  1. yippi macrumors member

    Nov 16, 2013
    I am on Mavericks now but before I switched, I installed OS 9.5 on a USB stick to see how I like it.

    After this try-out installation (and the MP still on OS 8.5) I discovered that when starting up with option pressed, I see my usual start-up disks but ALSO a "OS X Base System" that is obviously a left-over from my earlier Mavericks installation trial.

    Now on Mavericks I could see this disk image even in Disk Utility when on the recovery partition. There it appeared as "disk6" disk image containing 1.25 GB.

    I searched for this disk image in the invisible files, but didn't find it. I want to erase this left-over stuff as it takes space and does who-knows-what. How can I erase this thing?

  2. grahamperrin macrumors 601


    Jun 8, 2007
    Please use Terminal to run the following command. Paste the output to this topic.

    diskutil list
    Hint: use the advanced editor, and # to format as code.

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