Can't reinstall OS X on 2008 MBP

Discussion in 'macOS' started by Fzang, Jan 19, 2017.

  1. Fzang macrumors 65816


    Jun 15, 2013
    First I tried upgrading to Yosemite. It hung during the installation, so I rebooted. Now it insists on continuing the installation, and is unable to boot into Snow Leopard that was installed before.

    The Cmd L log says something about disk permissions, but the Cmd R recovery is unable to repair them.


    I made a bootable El Cap USB, which boots but DOESN'T give me any option to launch disk utilities. It goes directly to the OS install sequence... and also fails.

    So I can't repair the disk, can't wipe it, can't update it.

    What to do?
  2. CoastalOR macrumors 68000


    Jan 19, 2015
    Oregon, USA
    Boot from your 2008 MBP Install CD to "wipe" (format) it before a installing the OS.
  3. Fzang, Jan 19, 2017
    Last edited: Jan 19, 2017

    Fzang thread starter macrumors 65816


    Jun 15, 2013
    In the unfortunate case that I don't have said 8 year old CD still?

    Edit 1: Managed to wipe the disk with the disk utility, alongside the installer running. I don't even know why that's possible. Booting from USB now to see what's happened...

    Edit 2: It's actually doing something that resembles an install now! Hope it works.

    Edit 3: It works!

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