![]() So I can just reboot the Mac and hold Command-R to get into recovery mode. And if OS X Recovery encounters problems, it will automatically connect to Apple over the Internet. You can even use Safari to get help from Apple Support online. It lets you choose from common utilities: You can run Disk Utility to check or repair your hard drive, erase your hard drive and reinstall a fresh copy of OS X, or restore your Mac from a Time Machine backup. Just hold down Command-R during startup and OS X Recovery springs into action. And you don’t have to search through original packaging to find install DVDs to get your Mac back up and running. Even if you don’t need it, it’s good to know it’s there. Since OS X Recovery is built into your Mac, it’s always there when you need it. ![]() OS X Recovery lets you repair disks or reinstall OS X without the need for a physical install disc. Mac OS X 10.8 Has a Built-in Recovery Partition Please burn '~/Desktop/Mountain Lion DVD Image.dmg' to a DVD using Disk Utility."Ģ. Rm -f /private/tmp/Mountain\ Lion\ DVD\ Image\ read-write.dmgĮcho "Image Creation Complete. Hdiutil convert /private/tmp/Mountain\ Lion\ DVD\ Image\ read-write.dmg -format UDZO -o ~/Desktop/Mountain\ Lion\ DVD\ Image.dmg Hdiutil detach /Volumes/Mac\ OS\ X\ Install\ ESD Hdiutil detach /Volumes/Mac\ OS\ X\ Install\ ESD\ 1 Hdiutil attach -nobrowse /private/tmp/Mountain\ Lion\ DVD\ Image\ read-write.dmgĮcho "Copying Mountain Lion to new image."Ĭp -pRv /Volumes/Mac\ OS\ X\ Install\ ESD/* /Volumes/Mac\ OS\ X\ Install\ ESD\ 1/ Hdiutil attach -nobrowse ~/Desktop/InstallESD.dmg Hdiutil create -size 4.2g -volname "Mac OS X Install ESD" /private/tmp/Mountain\ Lion\ DVD\ Image\ read-write.dmg -fs HFS -layout SPUD Rm -f /private/tmp/Mountain\ Lion\ DVD\ Image\ read-write.dmg # Remove any old copies of the DVD image before we begin. Burn OS X Mountain Lion installer to single-layer DVDįrom the bottom link (Mac OS X hints), here is a snippet of the code that can accomplishes our goal:.How To Create a Bootable Mountain Lion (OS X 10.8) Installation DVD.Resize OS X Mountain Lion installer to fit on a single layer 4.7 GB DVD.The instructions on how to accomplish that are here: The 10.8 Installer is downloadable via App Store and even though it’s doesn’t fit on a regular DVD you just have to copy the contents into a smaller image. Resize OS X Mountain Lion installer to fit on a 4.7 GB DVD Since I was on Mac OS 10.8 there are a couple of other options for recovery media. Here is the size information of an empty hdiutil makehybrid -iso -joliet -o MAC_OS_10_6_Custom.iso image.sparseimageīoth can be burned by using the ‘hdiutil burn’ command or with any burning software. That is not going to fit on a Single Layer DVD. You can see that the total size is 6737006592 bytes (about 6.3Gib). Resize limits (per hdiutil resize -limits): URL: file://localhost/Users/kelatov/OS_X-10.6.dmg Format Description: UDIF read-only compressed (zlib)
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