Install ML from DVD takes forever

Discussion in 'iMac' started by Dr. McKay, Apr 6, 2013.

  1. Dr. McKay macrumors 6502a

    Jan 20, 2010
    Belgium, Europe
    I bought a used iMac (mid 2011 model, quad core i5 2.7, 21 inch). I had ML on a DVD so I wanted to do a clean install.
    Started up from the DVD, went into Disk utility and erased the drive. Then proceeded to install. Everything seems to be going well, and the progress bar is about 80% full, but the remaining time keeps increasing (was 6 minutes left, then kept increasing up to 12 minutes, where it is now).
    Is this normal ?
    Should I just wait until the installer finishes or is something wrong.

    Also, there was no 'boing' sound when I started up the Mac. Obviously, as long as OS X is not installed, I can't go into the sound settings, but shouldn't it have made a startup sound ?
  2. Macman45 macrumors G5


    Jul 29, 2011
    Somewhere Back In The Long Ago
    I'd leave it a while...You might have a problem DVD which the drive is having problems reading, but I'd say 30 mins tops.
  3. OllyW Moderator


    Staff Member

    Oct 11, 2005
    The Black Country, England
    The Mountain Lion installer isn't optimised for use with optical disks so it's recommended you create the installer on a USB stick instead.
  4. dangerly macrumors regular


    Oct 27, 2009
    European Dis-Union
    Correct, use a 8 GB USB stick and it will be much faster.

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