cannot install Mavericks/Yosemite on mid-2010 MBP

Discussion in 'macOS' started by mrjayviper, Apr 4, 2017.

  1. mrjayviper, Apr 4, 2017
    Last edited: Apr 4, 2017

    mrjayviper macrumors regular

    Jul 17, 2012
    so I'm trying to install either Mavericks or Yosemite on this MBP. But I keep on getting a message that says "my copy of the installer is corrupt or may have been tampered with during downloading".

    I'm trying to install the OS via a USB stick that was created using the "createmedia" command.

    Using this page

    - I found out my Mavericks installer is most likely corrupt
    - My Yosemite installer checks out fine

    I highly doubt the problem is the USB stick since I've recently used it to install Windows 10.

    Any ideas? Thanks

    update: just tried El Capitan and no issues installing it. the SHA1 for El Capital checks out fine.
  2. Fishrrman macrumors G5


    Feb 20, 2009

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