The Tips - Mac Kung Fu - page 162

2. When the download has finished, find it within the Applications list of

Finder; then right-click it, and select Show Package Contents. Navigate
to the SHAREDSUPPORT folder, and you'll see a file called INSTALLESD.DMG . This file
is the entire Mountain Lion installation—you can ignore all the other files
in the package. Leave the Finder window open showing the file while you
perform the next few steps.

3. Insert the USB stick you intend to use to make the installation stick.

Remember that this will be blanked during the follow steps, so ensure no
valuable files are on it.

4. Open Disk Utility, which you'll find in the UTILITIES folder of the Applications

list within Finder.

5. In the Disk Utility window, locate the USB stick in the list of drives on

the left of the window. Select the USB stick itself, and not the partition,
which will be slightly indented beneath it.

6. Click the Partition tab in the upper middle of the window. From the Par-

tition Layout drop-down, select 1 Partition. From the Format drop-down,
select Mac OS Extended (Journaled). In the Name field, type something
like OSXINSTALL —this is what will appear in Finder whenever the USB stick
is inserted.

7. Click the Options button. In the dialog box that appears, ensure the GUID

Partition Table radio button is selected. This makes the USB stick bootable.
Click the OK button when done; then, in the main Disk Utility program
window, click the Apply button at the bottom right. Formatting the USB
stick will take a few seconds, and you'll see a progress display at the
bottom of the program window.

8. When it's finished, click the Restore tab. Return to the Finder window

you opened later, which is browsing the installation package, and drag
the INSTALLESD.IMG file to the Source text field. This will add it as the source
from which you're going to write the USB stick.

9. Drag the entry for your USB memory stick from the left of the Disk Utility

window to the Destination field. Then select the USB stick's partition (that
is, the entry indented beneath the main entry for the stick in the listing
on the left of the Disk Utility window), and click the Unmount button on
the toolbar.

10. Click the Restore button at the bottom right of the window and then the
Erase button on the warning dialog telling you that the USB stick will be