After that choose to install Lion from the menubar. Once your Mac has booted from the recovery partition/usb you may have to pass a setup for your language preferences first. Upon boot you hold ⌥ and choose the recovery disk. Using this method, an install of Lion requires an internet connection.
The recovery partition exists on every Mac that came shipped with Lion or had Lion installed as a clean install. In order to directly boot into the recovery partition. The OS X Lion download is about 4 GB large. OS X Lion isĭownloaded over the Internet from Apple when Lion Recovery is used for The Internet via Wi-Fi or an Ethernet connection. Reinstalling OS X Lion via Lion Recovery requires broadband access to Lion Recovery (requires internet connection) You can boot into your DVD or flash drive from there. Reboot into OS X and hold the option key when you hear the startup chime. Hit the “Apply” button and it will create your bootable USB drive. Hit the “Apply” button when you’re done to format your drive (note: it will erase everything on the drive).Ĭlick on the “Restore” tab, choose the InstallESD.dmg file as the source and your flash drive as the destination. It may take a few minutes to boot into recovery mode.
Mac os x lion reinstall software#
2 Select Recovery HD when prompted and click the arrow below it to boot into recovery mode. Creating a bootable USB drive and using it to reinstall macOS is a bit of a lengthier process compared to simply updating macOS from the Software Update. This will allow you to select one of multiple booting options. You’ll need this to make the drive bootable on a Mac. 1 Hold down the Command and R keys while your Mac is booting.
Mac os x lion reinstall how to#
How to reinstall Mac OS X on an older Mac. Hit the “Options” button under the partition table and choose “GUID Partition Table”. Internet Recovery was added to macOS in Mac OS X 10.7 Lion in 2011, but older Macs may be able to get Internet Recovery Mode as a firmware update.Choose “Mac OS Extended (Journaled)” on the left. Go to the Partition tab and select “1 Partition” from the dropdown menu. First, make sure your USB drive is formatted for use with a Mac, then download the OS X Lion installer from the App Store and copy it to your flash drive. If you want to burn Lion to a USB flash drive, plug it in and click on it in the left-hand sidebar in Disk Utility.If you’re burning it to a DVD, insert your DVD, select the disk image in the sidebar, and hit the “Burn” button. Open up Disk Utility and drag the DMG file into the left-hand sidebar. Can’t reinstall Lion os I'm trying to use recovery to reinstall my Mac OS X Lion, but I get the following message: 'Can't download the additional components needed to install Mac OS X.' Posted on 1:37 PM Reply Me too (49) All replies 3 replies D.I.Step 2: Check your startup disks SMART status with Disk Utility. Navigate to Contents/SharedSupport and look for a file called InstallESD.dmg. on Mac Step 1: Restart in Internet Recovery Mode. Right-click on the installer and hit “Show Package Contents”.The installer should show up in your Applications folder. Buy and download Lion from the Mac App Store.Create a bootable OS X Lion USB stick or DVD based on the Mac App Store download
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