- #MAKE A COPY OF YOUR CURRENT OS X SYSTEM FOR LATER MAC OS X#
- #MAKE A COPY OF YOUR CURRENT OS X SYSTEM FOR LATER INSTALL#
Rename the mounted volume as Mac OS X Base System RW so it won’t get mixed up with the originalġ.Ĝopy over Calculator.app (or any 64-bit app) into either /Volumes/Mac OS X Base System RW/Applications or /Volumes/Mac OS X Base System RW/Applications/UtilitiesĢ.Ĝopy over /System/Library/PrivateFrameworks/amework/ from your main system into the same path inside the Base System RW disk image (I’ll explain this a bit more later).ģ.Double-click ~/Desktop/Mac OS X Base System RW.dmg to mount it.Mount the Read/write Base System to Make Customizations Right-click ~/Desktop/Mac OS X Base System RW.dmg.In case a mistake is made, it would be a good idea to make a copy of the read/write version of the. Double-click ~/Desktop/BaseSystem.dmg to mount it.Mount BaseSystem.dmg to Make A Read/write Copy of it Copy BaseSystem.dmg and BaseSystem.chunklist to the Desktop (both are hidden files).Double-click InstallESD.dmg to mount it.Run the command defaults write AppleShowAllFiles TRUE killall Finder.Mount InstallESD.dmg to Find The Recovery HD Image Copy SharedSupport/InstallESD.dmg to ~/Desktop.
#MAKE A COPY OF YOUR CURRENT OS X SYSTEM FOR LATER INSTALL#
Right-click Install OS X Mountain Lion.app.You will not be able to use Cmd+R to boot to your custom Recovery HD (unless you use the dmtest tool).Use a test machine for this as you will be overwriting data and possibly creating partitions.Familiarity with disk partitioning and mounting/un-mounting volumes.Ability and confidence to enter commands in the Terminal, adjusting them to suit your environment, if necessary.Xcode or another app to edit plist files.or skip a few steps and download dmtest ( Lion) ( Mavericks) from my Dropbox.Install OS X Mavericks.app or Install OS X Yosemite.app.Requirements For This Walkthrough Materials The example I use in this walkthrough is Calculator.app. However, this process seems to work for other 64-bit apps. At the end, I realized I probably wouldn’t be able to add this app to the Recovery HD until JAMF updates it to 64-bit. So this post is based off of this article and this feature request on JAMF Nation. Originally, I wanted to use Casper Imaging from the Recovery partition.
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