Create a USB Stick Lion Installer

Follow these quick steps to create a GUID USB stick. Firstly - open Disk Utility from Applications/Utilities.

1. Select your desired disk or USB stick
2. Select the Partition tab
3. Select 1 Partition
4. Name your disk to "Installer"
5. Click Options
6. Select GUID Partition Table
7. Click OK
8. Click Apply

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Transferring the Installer to the designated disk:

1. Show package contents on "Install Mac OS X Lion.app"

2. Navigate to "Contents/Shared Support"

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3. Mount InstallESD.dmg

 
If you run into problems mounting this image, excute from terminal:
#sudo chmod -R 770
Leave a space after 770 and drag the image InstallESD.dmg to the terminal.

4. Copy and paste the following code into terminal to mount the hidden BaseSystem.dmg file:

Code:

open "/Volumes/Mac OS X Install ESD/BaseSystem.dmg"

5. Restore the Mac OS X Base System volume to your designated disk using Disk Utility by dragging the volumes into the designated boxes as shown below:

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6. Unmount the DMG mounted Mac OS X Base System volume to avoid confusion between the two:

7. Navigate to your designated partition/disk/usb stick (that should be now named Mac OS X Base System) and go into the System folder, and then the Installation folder. Find the Packages alias and delete it:

8. Copy the Packages folder from the Mac OS X Install ESD volume to the Installation folder where you just deleted the Packages alias.

9. Copy mach_kernel from Mac OS X Install ESD to your partition/disk/usb stick by pasting the following into a terminal window:

Code:

sudo cp /Volumes/Mac\ OS\ X\ Install\ ESD/mach_kernel /Volumes/Mac\ OS\ X\ Base\ System\ 1/

IF that line gives you a does not exist error, copy/paste this one:

Code:

sudo cp /Volumes/Mac\ OS\ X\ Install\ ESD/mach_kernel /Volumes/Mac\ OS\ X\ Base\ System/

10. (optional) Rename Mac OS X Base System volume to whatever you like ie Lion Installer