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Mac mountain lion recovery usb

How to Clean Install Mac OS X Mountain Lion

The creation time varies by the speed of the USB flash drive, but plan on 30 minutes to over an hour. All data on the USB flash drive will be erased.

A note on installer compatibility

In the Disk Utility window, look for the flash drive in the list of attached devices. Look for the device name, which usually appears as the drive size followed by the manufacturer's name, such as 16 GB SanDisk Cruzer. Select the drive not the volume name , which may appear below the drive manufacturer's name , and click the Partition tab.

Use the Volume Scheme drop-down window to select 1 Partition. Enter a name for the volume you're about to create. Click the Apply button. Disk Utility will display a sheet asking if you're sure you want to partition your USB flash drive. Click Partition to continue. Open the Contents folder.

Open the SharedSupport Folder. Right-click the InstallESD. Close the Finder window.


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This will create a copy of the InstallESD. Launch Disk Utility , if it's not already open. Click the flash drive device not the volume name in the Disk Utility window. Then, of course, just to be save, Time Machine backup my Mac again, just to be absolute certain I […]. Thanks for the info, I forgot to mount the Mountain Lion image and then I get a error, but with this info I resolved the issue, thanks!

Nope, you are safe. Which is a whole another story. Thanks for this. I first used the leopard installer dvd to do a time machine restore back to Mountain Lion because I had bought a new SSD. I was VERY annoyed at Apple to let me get all the way through it 6 hours with computer going to sleep every 10 minutes just to get a Kernel error at bootup. This helped because: Thanks a bunch. Also, just a quick comment: Does this method not work with the The USB boots but the install fails immediately.

Creating a Bootable Flash Drive With OS X Lion

However, when I try to actually boot from the thumb drive via pressing alt key during startup , I get to choose which drive to boot from, I select the USB and then it tries to load. And the nothing happens, I need to force-reboot…. I have the same problem. After restart, the system never give me a chance to boot from USB at all. Can any one please give me help. I am so tired now, have been trying and getting stressed now. Please please help! Great tip!


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I was able to get a Mountain Lion image onto a thumb drive, and will use it for future. OK… so I made a bootable flash drive with the installer. Now, I need to move that bootable image to an SD card so I can reclaim my thumb drive. Can someone explain how I might accomplish this? Hi all. Can anyone help?

How to Make a Bootable Mac OS X Mountain Lion 10.8 USB Thumb Drive

Thanks a lot! I was searching to reinstall the OS for last 2years but could never do that.

How to Make a Bootable OS X 10.8 Mountain Lion USB Install Drive

Just reinstalled every time. With the same apps coming automatically! But your advice helped a lot… But I just wonder that why apple wants its users to be so computer savvy? Anyway, thanks to you buddy! There are pink lines thought my screen… When I boot from the usb blue lines show through out the screen.


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An old article for sure, but really useful and worked perfectly! Name required. Mail will not be published required. All Rights Reserved. Reproduction without explicit permission is prohibited.

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Enter your email address below: Posted by: Marcos says: February 17, at 4: Christopher says: February 17, at 6: Gaymerguy says: November 12, at 2: Pedro says: Armin says: February 17, at 7: February 18, at 9: Aaron says: February 17, at 8: February 18, at 1: DeeN says: February 18, at 2: July 26, at 7: February 18, at 7: Paul says: February 18, at Albert says: February 19, at 6: Yousif Anwar says: February 19, at June 14, at 4: Mauro says: February 20, at 9: Jazz Bansal says: February 20, at 4: UT says: February 20, at 6: April 9, at 1: May 11, at 5: July 20, at 9: February 21, at 1: As of version You can use Disk Utility's Restore screen to create a bootable flash drive or hard drive.

Using Carbon Copy Cloner Version 3. Carbon Copy Cloner can create a bootable Mountain Lion installer in a few easy steps. As with using Disk Utility, the process takes roughly five to ten minutes. One difference here: You can now boot any Mountain Lion-compatible Mac from this drive: However, unlike recovery mode, your bootable installer includes the entire installer. He now has many, many bootable install drives.

Updated 7: Updated The latest version of OS X, But before you rush to install Mountain Lion, you'll Mountain Lion OS X Though you can install Mountain Lion directly from your Mac's hard drive, a bootable installer Some Mac users prefer to do a "clean install" of each major new version of OS X, erasing their How to install Mountain Lion over Leopard. Installing Mountain Lion: What you need to know. Our complete Get your Mac ready for Mountain Lion What you need How to make a bootable Mountain Lion Should you do a "clean install" of How to install Mountain Lion over