This causes the Mac to display its built-in startup manager, where you select the device you want to boot from. Insert the bootable media or connect it to your Mac and then restart the Mac while holding down the Option key. This guide covers performing a clean install of Mountain Lion on a startup drive. A current backup.įor most people, this is Mac's startup drive. It contains a bootable system with utilities for performing basic disk repair, as well as the ability to reinstall the OS if necessary. A minimum volume size of at least 60GB provides sufficient room for the OS, user data, apps, and some free scratch space. You can squeeze Mountain Lion onto a smaller drive, but there won't be much space left for user data and applications. The target volume must be at least 8GB in size. Quit the installer and read the rest of this guide before starting the installation process. Bugs & Fixes: How best to restore an OS X Lion drive | Macworld!Īn avid technology enthusiast, Steve Gregory has been writing professionally since When you download Mountain Lion, the installer starts automatically.regarder nrj12 en direct gratuitement sur internet sur mac!.
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How to Unlock Recovery HD on Mac OS X Lion.Be Safe, Not Sorry: Learn about Recovery HD on Mac OS X Lion | MacProCleaner!.
For example, choose the hard drive you want to reinstall the operating system on and enter your Apple ID and password when prompted. Open the "Disk Utility" menu and choose "Quit Disk Utility" after the system displays the message that the disk has been successfully erased.
Be Safe, Not Sorry: Learn about Recovery HD on Mac OS X Lion | MacProCleaner The time for the process to complete depends on the amount of data on the disk. If you only have one hard drive, it will be the only disk available.
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