![]() ![]() # Script to Update the High Sierra Recovery Partition Copy and paste the following code using TextEdit or Xcode etc and save the file as HSrecovery.sh into your Downloads folder: Right click on the file named "EmbeddedOSFirmware.pkg" and click Show Package Contents.Ĭopy RecoveryHDMeta.dmg into your Downloads folder.ģ. Open folder named "Expanded" on your Desktop. pkg from the Desktop into the Terminal window and type after a space Then type "~/Desktop/Expanded" (without the quotes) and hit Return. Type "pkgutil -expand" (without the quotes) Download the latest Security Update for High Sierra from Apple's website ( ). Put it into the downloads folder if it is not there already.Ģ. Method for Updating the High Sierra Recovery Partition:ġ. The method below should also probably work on Macs that natively support High Sierra but I would just download the Security Update from the Apple website and run it first before trying the method below. (Or you can download the Security Update from Apple's website, hack it as described hereĪnd then run the hacked installer for the Security Update). ![]() First update the Recovery Partition using my method below then install the High Sierra Security Update via the App Store. Unfortunately, most of the High Sierra Security Updates will fail when attempting to install them on unsupported Macs since they unsucessfully attempt to update the Recovery Partition.
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