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I have a Mac Pro 1.1 with OS X 10.10 Yosemite and Piker Alpha bootloader. I’m trying to download OS X 10.11 El Capitan from the Mac App Store and get the following error message:

Your Purchase Could Not Be Completed.

This version of OS X 10.11 can't be installed on this computer.

Is there a workaround for this problem? I have no other compatible Mac at home.

I only want to download the dmg file to edit it manually.

marked as duplicate by bmike Oct 24 '15 at 3:49

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  • See apple.stackexchange.com/questions/208660/… for a near duplicate question. – Graham Miln Oct 2 '15 at 13:59
  • the answer is: change SystemVersion.plist – MaCXyLo Oct 2 '15 at 18:39
  • 1
    Perhaps you could answer your own question. What key(s) did you change to what value in /System/Library/CoreServices/SystemVersion.plist ? – user90735 Oct 2 '15 at 19:52
  • It wasn't the complete answer... if you start the mac app store and edit in the SystemVersion.plist, you can josh the mac app store: <!-- language-all: lang-html --> /usr/libexec/PlistBuddy -c "Set :ProductUserVisibleVersion '10.09'" /System/Library/CoreServices/SystemVersion.plist /usr/libexec/PlistBuddy -c "Set :ProductVersion '10.09'" /System/Library/CoreServices/SystemVersion.plist For Example. Correct it after the josh, otherwise your system would be corrupted. – MaCXyLo Oct 3 '15 at 16:39
  • so i still search for a posibility... i mean chameleon can do this, but is there a buildin way? – MaCXyLo Oct 3 '15 at 16:45

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