How to format with Mac OS X Snow Leopard using .dmg file?

I have run into this before.

Your easiest options are you can purchase a dual layer DVD and burn it to that - or - You can burn it to a flash drive, it need to be 8GB or larger (you could also do it to an external USB drive instead of the Flash Drive).

To load it to a USB drive -

* 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!

* Click OK to create the GUID partition (this will reformat the drive, ie: all data is lost)

* Next, click the “Restore” tab within Disk Utility

* Select your newly made Snow Leopard 10.6 Install DVD image and restore this image to the GUID partition you just created OR…

* Alternatively, you can select the Snow Leopard Install DVD and restore directly from the DVD to the GUID partition

* After the restoration is complete, your GUID partition will now be bootable by Mac OS X!

* Reboot the Mac holding down the “Option” key to pull up the boot loader, select the Snow Leopard install drive you just created rather than your default Mac OS hard drive

* Install Snow Leopard as usual!

The source link has pictures.

Good Luck!

Snow Leopard Dmg

You don't burn the DMG file to a DVD. You mount the DMG file as a disk by double-clicking it. Then you right-click (opt-click) the disk in a Finder window or on the desktop and choose "Burn". That will make a bootable DVD. All this has to happen on a Mac with a superdrive that can burn dual-layer DVDs. You forgot to mention if you put the HDD back in the Mac Pro. I suppose if you didn't, you would realize your mistake and put it back. Then you can boot the Mac Pro to the DVD and use Disk Utility to erase the HDD as "Mac OS Extended (Journaled)" file system. After that, it's a piece of cake. If the Mac Pro doesn't boot to the DVD, restart and hold the opt key for 30 seconds. You will get the Startup Manager screen where you can select the DVD icon and press the Return key to boot from the DVD. If what I just said has you scratching your head it's because of one of these two problems: * You thought you could install OS X on a hard drive/partition formatted for Windows. * You put the hard drive in an X86 PC and you think that's enough to allow you to make your PC become a hackintosh. If you are trying to make a hackintosh, tell us. Don't make us guess.

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RE:

How to format with Mac OS X Snow Leopard using .dmg file?

I already have the .dmg file of the Mac OS X Snow Leopard operationg system. The problem is that I only have it as one file and it is around 6.4 GBs, which makes it unable to burn to a DVD. But I want to format my MacBook using this operating system and file. Can you help me with it?