How to create a boot disk / flash drive to install the OS X Lion

Despite the fact that Apple is provided for the installation of the system from a hidden partition on your hard drive, do not neglect the opportunity to write the installation image to a DVD-ROM or USB flash drive and feel protected from any unforeseen situations. In addition, you will not have to spend at least $ 69 on the official USB-drive , which in August will go on sale.
To implement this plan, we need to downloaded from the Mac App Store Lion, blank DVD-ROM or USB flash drive, that exceeds 4 GB, and 30 minutes of free time. Also, always make sure that you choose to copy the stick all the important information (if any). Let's start. Go to the directory with the installed programs, we find there an application Installing Mac OS X Lion.app (if not, then will have to re-download from the App Store Mac ) and choose the shortcut menu, select "Show Package Contents". In the window that Finder should do the journey on the inner structure of folders and go to the folder SharedSupport . We are interested in the first file of 3.74 GB. If you want to create a bootable DVD, it suffices to take any application that knows how to write DMG-images, and use it to write InstallESD.dmg to disk (only first copy it at least to the desktop). Otherwise, double-click on the file left mouse button and wait until you will see the mounted image under the name of Mac OS X Install ESD: It's time to insert the stick into the computer and run Disk Utility, which is found in the Applications> Utilities . Now in the sidebar, select our flash drive, and right - Erase tab. In the Format box, select the file system type «Mac OS Extended (Journaled)" in the Name field enter something conscious and click Delete. Format operation will take some time (depending on the amount of flash). There remains little bit - to restore our image attached InstallESD.dmg the stick. This requires re-select the flash drive in the sidebar and click on the tab of the Restore. In the Source field, drag the icon image, called Mac OS X Install ESD, and in the appointment - our newly formatted USB flash drive. Several times, ensure that you are not confused field, and not chosen as the destination for any desired flash. If everything is correctly entered, feel free to press the Reset button and you can go for a walk: That's it! Now, when the need arises, it is enough to insert a stick in the USB-port on your computer and turn it on after you press and hold down the Option (Alt) to select the boot partition. You may be wondering if I should write DVD-ROM or a USB flash drive installation? I think the latter option is more appropriate, and the owners of MacBook Air and new Mac mini no choice at all