- #Install mac os mountain lion from usb mac osx
- #Install mac os mountain lion from usb install
- #Install mac os mountain lion from usb update
- #Install mac os mountain lion from usb download
To show it so you can see it in the finder – go to Terminal – and after you have mounted the Recovery Drive: cd /Volumes/Recovery HD/ sudo chflags nohidden BaseSystem.dmg Now it will be visible in the Finder. If you have the latest models from Apple that came already shipped with OSX 10.7, then you may not have the “BaseSystem.dmg” but instead see a “BaseSystem.chunklist”, the “BaseSystem.dmg” is there it’s just hidden.
#Install mac os mountain lion from usb update
Update For Newer Models – hidden BaseSystem.dmg - BaseSystem.chunklist That’s why the guide here can get you out of trouble.
#Install mac os mountain lion from usb install
Start-up-system-preference If you have downloaded the OSX 10.8 Mountain Lion App from the App Store then you can also make a full bootable image of OSX 10.8 to a disk/drive, you need to make the boot drive/disk before you install the Mountain Lion App, as the installer is deleted after running it.
![install mac os mountain lion from usb install mac os mountain lion from usb](http://apple.mercenie.com/wp-content/uploads/sites/6/2014/01/mac-os-x-lion-wallpaper.jpg)
Now to boot from it just select it as the Start Up disk in System Preferences or hold down option key on boot and select it from the choice of bootable devices. Restore-volume-osx-usb 7) Click Restore – 10 minutes later – One bootable USB drive Your bootable USB drive will be called “Mac OS X Base System” after the restore is complete. Usb-format-osx-extended-lion 6) Finally in still in Disk Utility, select the “Restore” tab - drag the mounted volume “Mac OSX Base System” into the Source field and drag the USB drive “Volume” (mine is called SuperBootUSBDrive) to the Destination.
![install mac os mountain lion from usb install mac os mountain lion from usb](https://www.maciverse.com/wp-content/uploads/2011/06/OS-X-Lion-USB-Install.jpg)
The USB drive needs to be formatted as Mac OS Extended Journaled, if its not, its time to format it in Disk Utility… Macosx-basesystem 4) Open Disk Utility in /Applications/Utilities 5) Put in a 2GB+ USB drive, let Disk Utility load it.
#Install mac os mountain lion from usb mac osx
This will mount the volume ” Mac OSX Base System” Recovery-finder-osx-lion 3) Doubleclick BaseSystem.dmg to mount it also in the sidebar. That’s it one external bootable Recovery Drive – this works on both OSX 10.7 and 10.8ġ) Launch Terminal from /Applications/Utilities and run: diskutil list The main drive in this list is No.2 with the “Identifier” of disk0s2, the boot Recovery HD drive is disk0s3ĭisk-util-list-drives We can also identify the Recovery drive by the name and the size – set at 650mb 2) Mount the drive by its Identifier:ĭiskutil mount /dev/disk0s3 Output should be: Volume Recovery HD on /dev/disk0s3 mounted Now the Recovery HD is mounted in the Finder and you can see it in the sidebar under Devices Navigate to it from the sidebar – Recovery HD//BaseSystem.dmg
#Install mac os mountain lion from usb download
You can make a bootable USB drive or disk from the Recovery Partition 2 ways – the easy way and on the Terminalġ) Download OSX Recovery Disk Assistant and uncompress and launch it 2) Attach the USB drive that you want to copy the Recovery Partition to.ģ) Select the drive and continue (All contents on it will be erased)
![install mac os mountain lion from usb install mac os mountain lion from usb](https://media.idownloadblog.com/wp-content/uploads/2012/09/OS-X-Mountain-Lion-USB-Boot-Disk-Teaser-e1346692878765.jpg)
From the Recovery Partition Hard Drivr you can run Disk Utility, access the command line, get online help and do a restore from a Time Machine backup and re-install Mountain Lion leaving all your other files intact – it just replaces the core operating system. If you bought a new machine from Apple you have OS X 10.8 already installed – but no back up disk! and since you haven’t bought the OSX Lion 10.8 App from the App store you can’t re-download it – so thats why you have the recovery drive as a partition in your main hard drive, to boot from it you need to restart the machine and when it starts to boot hold down “command” + “r” keys. On every OS X 10.8 Mountain Lion there is a hidden partition to enable a method for Mountain Lion OS to be reinstalled on the machine, it is known as the Recovery Partition or drive and is 650mb in size. Make a Bootable USB Drive of OS X 10.8 Mountain Lion from the Recovery Hard Drive