What you WILL need the entire time though is an external Firewire or USB drive that you don’t mind formatting, so that you can make the device bootable and upgrade to Snow Leopard from it.As some readers pointed out, this step isn’t required.If you have a Mac without a functioning DVD drive (or a Mac Book Air), you’ll need to find another way to upgrade to Snow Leopard, thankfully this is very easy, all you’ll need is an external firewire or USB hard drive.You’ll need access to a DVD drive *somewhere* so that you can make a disk image of the Snow Leopard install disk with the Disk Utility tool, but once you have the disc image you won’t need the DVD drive again.mac OS comes with an entire suite of beautifully designed apps.It works hand in hand with i Cloud to keep photos, documents, and other stuff up to date on all your devices.If you get a call on your i Phone, you can take it on your Mac.
* Launch Disk Utility * Select the Snow Leopard DVD within Disk Utility * Click the “New Image” button at the top * Name the image and put it somewhere you can find it easily (Desktop) * Click OK and wait for the image to be created Easy enough right?
It’s also where you’ll find your Today view, which you can customize with helpful widgets or handy information pinned from Siri searches.
Your Mac works with your other Apple devices in ways no other computer can.
Ok so here’s how you create a bootable Snow Leopard installation drive out of your external firewire or USB hard disk.
* Launch Disk Utility * Select the External Firewire/USB device that you want to use as the boot drive for the upgrade * Click “Partition” from the menu options * Select 1 Partition, then click “Options” below the partition scheme * Select the top option for “GUID Partition Table” – it MUST be GUID to be bootable!