Select the flash drive device (not the volume name) in the Disk Utility window.

How to Create a Bootable Flash Drive for Installing OS X Lion.

Tom Nelson is an engineer, programmer, network manager, and computer network and systems designer who has written for Other World Computing,and others.

Dmg Software And Switched

Starting with OS X Lion, Apple did away with DVDs and other media as a method of installing software and switched to a download model instead.

Even so, its still easy to create a USB installation disk for OS X Lion if you want to install Lion on a freshly formatted hard drive, if youre in an emergency booting situation, or if you need to repair your Macs hard drive.

Heres how to create a bootable flash drive using the OS X Lion installer.

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.

Finally, use your bootable flash drive to install Lion on your Mac.

If your USB drive doesnt specifically state that its Mac-compatible, youll have to erase and format your drive for use with a Mac.

Heres how.

In the Disk Utility window, select your flash drive in the list of attached devices.

Use the Volume Scheme drop-down window to select 1 Partition.

Enter a name for the volume youre about to create, for example, Mac OS X Install ESD.

Make sure the Format drop-down menu is set to Mac OS X Extended (Journaled).

Select the Options button, choose GUID as the Partition Table type, and then select OK.

Disk Utility will ask if youre sure you want to partition your USB flash drive.

Your USB flash drive is prepared for the OS X Lion installer process.

Now that your USB flash drive is prepared, move on to downloading OS X Lion and copying the installer to the drive.

Dmg Code For The

Apple will email you a redemption code for the Mac App Store.

When you receive the email and code, youll be able to download OS X Lion to your Mac.

Once downloaded, go to the Applications folder and find the copy of Lion.

Right-click on the downloaded file and select Show Package Contents.

Within the SharedSupport Folder is an image file called InstallESD.dmg.

Right-click the InstallESD.dmg file and select Copy from the pop-up menu.

Youve now created a copy of the InstallESD.dmg file on the desktop.

Install Dmg For Mac Os X