Store your Lion install DVD somewhere safe. Always proceed with caution, knowing that a clean install is just that - it completely erases all drive contents. If you like, use Disk Utility from the installer to perform a clean installation of Mac OS X Lion. All you have to do is wait for your new OS X Lion install disk to pop out. The process burns the InstallESD.dmg image to the DVD, verifies it and completes. Make sure you drop it right into the left-most windowpane inside of Disk Utility.Ī prompt appears, asking you to insert the destination disc for the installESD.dmg disc image burn. Now move the ESDInstall.dmg file from your Finder desktop to Disk Utility, as shown below. Open the Disk Utility by double-clicking its icon. Double-click on the Utilities folder to open it. You risk damaging the OS X Lion install application. Righ-click it and select copy "InstallESD.dmg".Ĭaution: Do not drag this file. This is the OS X Lion installer disk image you need to burn to disc. Double-click it to open it.įind the “InstallESD.dmg” inside the ShareSupport folder. Inside the Contents folder, find the SharedSupport folder. Open it by double-clicking the Contents folder.
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