Easily Install Mac OS X Leopard on an MBR Formatted Disk

Ugh, eff a GUID formatted disk! This is by far the easiest way to get OS X Leopard (Retail/Vanilla) to install on an MBR formatted disk. I’ve gone through about 400 other tutorials and most were so complex. This method, which consists of about 20 simple steps has worked like a charm so far. I suggest reading the tutorial, but it’s pretty much as easy as this:

Create a temp 6 gig partition. Then, in a Terminal window, run:

  • cp -R /System/Installation/Packages/* /Volumes/TempPart
  • cd /Volumes/TempPart
  • mkdir temp
  • mv OSInstall.mpkg temp/
  • cd temp
  • xar -x -f OSInstall.mpkg
  • cat Distribution | sed “s/eraseOptionAvailable=’true’//g” > Distribution2
  • mv Distribution2 Distribution
  • rm -Rf OSInstall.mpkg
  • xar -c -f OSInstall.mpkg *
  • mv OSInstall.mpkg ../
  • cd
  • rm -Rf temp
  • mount
  • cd /
  • umount /Volumes/TempPart
  • mount -t hfs /dev/diskXsX /System/Installation/Packages

Getting Windows 7 and OSX Leopard to dual-boot on a Hackintosh/Hackbook has not been easy. I’ll be posting how I did it once I’ve successfully booted into both.

Chrissy is a PowerShell MVP who has worked in IT for nearly 20 years, and currently serves as a Sr. Database Engineer in Belgium. Always an avid scripter, she attended the Monad session at Microsoft’s Professional Developers Conference in Los Angeles back in 2005 and has worked and played with PowerShell ever since. Chrissy is currently pursuing an MS in Systems Engineering at Regis University and helps maintain RealCajunRecipes.com in her spare time. She holds a number of certifications, including those relating to SQL Server, SuSE Linux, SharePoint and network security. She recently became co-lead of the SQL PASS PowerShell Virtual Chapter. You can follow her on Twitter at @cl.

Posted in OS X & iPhone
6 comments on “Easily Install Mac OS X Leopard on an MBR Formatted Disk
  1. کیر says:

    Thanx very Much
    کیرم تو کست

  2. Claudiu says:

    ◦mount -t hfs /dev/diskXsX /System/Installation/Packages

    error not found

  3. Chrissy says:

    You aren't supposed to use it literally. It's likely disk0s3 but read the linked article to see exactly which one you'll be using.

  4. Zuff says:


    I see that you can directly "edit" the mpkg file, which is very impressive and cut down a lot of headache, however is it possible to edit the path it point to read the data?
    like in http://www.projectosx.com/forum/index.php?showtop
    I trying to get it work in Snow Leopard, will update if i get it done.

    Thanks !

  5. Zuff says:

    I cant get this method to work on a SL.
    Any suggestion?
    I read need to change /System/Library/PrivateFrameworks/Install.framework/Frameworks/OSInstall.framework/Versions/A/
    but not sure how to go abt doing it

  6. Tim says:


    I would also like it very much, if you could make this work on a Snow Leopard retail DVD.


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