Comments on: Create an OS X Mountain Lion Installation Boot DVD or USB Drive with LionDiskMaker

By: inca

inca — Wed, 23 Jan 2013 21:50:33 +0000

if something happens to our computer and we need to format it, how do we use this bootable ML disc?

Will I need to first go back and install 10.6.7 from my dvd, then upgrade to 10.6.8, and only then use this Mountain Lion? Or can I install it on a formatted it drive in the first place?

By: Jim

Jim — Mon, 06 Aug 2012 14:54:31 +0000

The installer will delete itself upon completion. If you go the app store again and view your previous purchases, you can download it again. Then follow the steps above.

By: Craig

Craig — Fri, 03 Aug 2012 11:40:25 +0000

I’ve already installed Mountain Lion (before reading this article). So now how can I find the right file for making a bootable disk?

By: Alan

Alan — Tue, 31 Jul 2012 17:18:45 +0000

Mountain Lion does not auto-install. Once downloaded, you are faced with a box on the screen with a button. Do not click it and shut the window down. You will find the Mountain Lion Installer in your Applications folder, just drag a copy or two out to your desktop or folder elsewhere.

By: Dave

Dave — Fri, 27 Jul 2012 06:45:08 +0000

Aren’t all apps supposed to install themselves after you download them from the mac app store? How can you stop mountain lion from doing this?

By: TheMoose

TheMoose — Fri, 27 Jul 2012 04:23:14 +0000

DIY Option: Use OS X’s Built-in Disk Utility

The steps for burning Mountain Lion to disk are essentially the same as the ones for Lion:

Download Lion from the Mac App Store—but don’t install it yet, because of the disappearing installer issue noted above.
Find the installer in your Applications folder and right-click on it then select “Show Package Contents.” Head to Contents > SharedSupport and look for the file called “InstallESD.dmg”
Open up Disk Utility from your Applications > Utilities folder and drag the DMG file into the sidebar on the left.
If you’re burning to DVD: insert your disk, select the DMG file in the sidebar, and hit “Burn.” Skip to step 6.
If you’re burning to USB, you’ll need to first format the drive properly:
Insert the disk and select it in the sidebar in Disk Utility. Select the Partition tab, select “1 Partition” from the dropdown menu and choose “Mac OS Extended (Journaled)” for the format type.
Click the Options button and choose “GUID Partition Table”—this will make the drive bootable and formatted correctly for the Mac. Hit Apply to format—which will completely erase—the drive.
Now click the Restore tab and choose the DMG file as your source and the USB drive as the destination. Hit the Apply button to make it happen.
Finally, to boot from your install disk/drive and install Mountain Lion, restart your Mac and hold the Option key down when you hear the startup chime.

By: jan

jan — Thu, 26 Jul 2012 21:40:44 +0000

http://i50.tinypic.com/ehxf2e.gif

im getting this message when i try to use it install into my 8gb usb thumb drive.

By: JG

JG — Thu, 26 Jul 2012 17:41:49 +0000

I’m having trouble creating the boot disk once I’ve installed Lion Diskmaker. Anyone know why?

By: mackie8i

mackie8i — Thu, 26 Jul 2012 07:32:37 +0000

why when creation the boot with

LionDiskMaker

the result is so different from the result that comes out from the

Disk-Utilities restore function
?

the size of the bootable usb content is about 7gb with LionDiskMaker and with Disk-Utilities it’s about 3.5gb..

also the content look a bit different..

By: vassagus

vassagus — Thu, 26 Jul 2012 00:40:39 +0000

Restore from mounted DMG to USB, not from the dmg file itself.

By: Björn Lindström

Björn Lindström — Wed, 25 Jul 2012 22:46:59 +0000

What to if Disk Utility gives this error message: “Could not restore – Invalid argument”?

By: mike v

mike v — Wed, 25 Jul 2012 18:50:17 +0000

Ha Ha
LinoDiskMaker would be an excellent application
Not sure if Lino is understood on the western side of the Atlantic?
mike

By: Paul

Paul — Wed, 25 Jul 2012 17:39:20 +0000

Correct

By: Jaco

Jaco — Wed, 25 Jul 2012 17:11:43 +0000

Pab

I would think both.

Jaco

By: pabugeater

pabugeater — Wed, 25 Jul 2012 16:39:36 +0000

So you can boot from the flash drive to do an *upgrade* from Lion to Mountain Lion, right? (Not just a clean install.)