Comments on: Quick tip: Create a USB installer for Mountain Lion

By: Geoffrey Goetz

Geoffrey Goetz — Fri, 05 Oct 2012 17:40:22 +0000

This technique is to create a USB installer. The reason you would want to do such a thing is to re-install Mountain Lin on a drive that has been erased (what is know as a clean install).

If you have never used the Disk Utility application before, then you should be fully backed up before doing so. Any time you are working with Disk Utilities and Operating System installers is a good time to back up everything you’ve got.

As a general rule, if you have to ask, should I perform a backup before doing this, then you should perform a backup before doing this.

By: GroundLazy

GroundLazy — Fri, 05 Oct 2012 12:25:48 +0000

Just to be 100% sure: this technique won’t erase startup disk? it’s just an upgrade, right? I don’t need any backup, right?

By: asare

asare — Tue, 02 Oct 2012 18:51:41 +0000

how can i do this for snow

By: Mk Don

Mk Don — Fri, 24 Aug 2012 11:43:56 +0000

Same issue as the guys above.

By: Doroke

Doroke — Mon, 20 Aug 2012 17:22:46 +0000

Hey Wyred, I’m having the same problem with you

By: wyred

wyred — Thu, 16 Aug 2012 05:51:57 +0000

Hello GEOFFREY, I have trouble in opening my mac. The OS X is missing I guess, I am only seeing the OS X UTILITIES menu and nothing more, so what I did, I downloaded OS X Mt. Lion dmg (from Torrent), is there a way that i can install this? Please advise, is so pls provide me the steps, I am a newbie to mac..Thank

By: Andrea Parisi

Andrea Parisi — Tue, 07 Aug 2012 13:25:37 +0000

@Chris, why can’t you store other files?
The usb drive works like a normal usb drive that contains stratup files for OSX installation.
I did it with OSX Lion. I think it’s possible also with OSX Mountain Lion.

By: Chris

Chris — Mon, 06 Aug 2012 23:54:20 +0000

Steve, no, you cannot use the drive for anything else

By: Steve

Steve — Sun, 05 Aug 2012 03:19:47 +0000

Can you fit additional information on the USB Thumb drive (such as a Time Machine backup) or is the entire USB Stick closed?

By: Geoffrey Goetz

Geoffrey Goetz — Thu, 26 Jul 2012 20:44:45 +0000

The Lion USB Stick from Apple had a capacity of 4.19 GB and used 3.82 GB of available space. I was able to create a 5 GB Mountain Lion Install partition on a 16 GB USB Thumb Drive. The Mountain Lion Installer Partition took up 4.38 GB of space. So yes, Mountain Lion should fit on a 8 GB USB Thumb Drive.