Drag-and-drop the Mac OS X Install Drive disk into the Source box.Drag-and-drop the USB drive's partition into the Destination box.In the center of the window you'll see two boxes: one labeled Source and another Destination. Restoring the Mac OS X install DVD to the USB drive. In the Disk Utility window, click the Restore tab in the USB drive's menu.If you're using a disk image, mount it to the desktop.Locate a Snow Leopard disk image or DVD on the Mac.To format the USB drive drive, click the Apply button in the lower right-hand corner of the Disk Utility window.Click the Format drop-down menu and select Mac OS Extended (Journaled).īear in mind that this will erase all data from the USB drive, so backup any important files before proceeding.Under the Partition Layout header click on the 1 Partition option in the drop-down menu.Partitioning and restoring the USB drive. Locate the USB drive on the left-hand side of the window and click on its name, not its partition. To do this, you can either search for the application in Spotlight or find it in the Applications folder. Start by launching Disk Utility on the Mac. Grey DVDs that were included with a Mac at the time of purchase cannot be used to make USB boot drives as they do not include drivers for Macs other than the computer it was shipped with.Ĭreating a Snow Leopard USB Boot Drive Using Disk Utility Note: Before starting this tutorial, ensure that you have a USB drive with at least 8GB of storage as well as a Snow Leopard retail DVD or disk image. However, there is no automatic way to create this drive on your Mac, so I'll show you how to do so in this tutorial. Additionally, some older Macs stopped receiving updates after Snow Leopard, forcing IT departments to continue support.īecause of this, it's important to keep a bootable Snow Leopard install disk around if you have a Snow Leopard machine or manage them. Even though OS X Snow Leopard has been around for quite a few years, it remains a favorite for some Mac users with legacy software support.

Mac os how to format usb drive