Comments on: Install OS X from DMG File

By: InDaWild

InDaWild — Sat, 21 Nov 2009 08:31:40 +0000

The program that does it is named “diskimages-helper”, not “dd”. I guessed it was “dd” myself, but after I examined the process a bit, I saw that it's not :)

It's good to know that restoring to a USB Flash Drive will take more time, so be patient!

Thanks for the tip – I, like many others, couldn't see the obvious…

By: terrywang

terrywang — Wed, 02 Sep 2009 05:23:41 +0000

Something different when restoring the Snow Leopard DMG to a flash disk.

You need to mount the dmg 1st, then use disk utility to restore the actual Mac OS X Install DVD (inside the DMG) to the flash disk, instead of specifying the DMG as source.

Then the 8G USB flash disk is loaded with Snow Leopard bootable, I think it's just UNIX command dd? Keep pressing option key until you see the option to choose the boot device;-)

By: sallyfingers

sallyfingers — Tue, 01 Sep 2009 16:49:21 +0000

You may need to use HTS (Mac OS) file system format for this to work. I tried using FAT and had errors. Then obviously realized that FAT cannot support files over 2GB. I reformatted to HTS and rock on….

By: shafique

shafique — Tue, 25 Aug 2009 08:19:01 +0000

plz send me how i can dow dmg to osx fils

By: fizgig

fizgig — Mon, 06 Apr 2009 18:16:31 +0000

Just a couple notes – some Macs cannot read burned Double Layer DVD+Rs. Also, oder Macs (PowerPCs) cannot boot from USB drives. Therefore, if you have an old iMac G5 like me you are basically screwed. :D Also, 10.3.9 could not “restore” a DMG to an external disk (got an error every time) but 10.5.5 could. Not that it matters for me.

By: James

James — Fri, 20 Feb 2009 07:08:36 +0000

I think you can later use the erase in disk utlity to reformat it again

By: Ryan

Ryan — Wed, 03 Dec 2008 17:06:35 +0000

Hey, I have a question.

If I restore the dmg to an external device, will I still be able to use that device? I mean, will it be able to do it's intended purpose once this is all said and done?

I'm only asking because I was going to use my digital 8-track recorder as the device, but I want to still be able to record my music with it after. Restoring a dmg to it isn't going to make it inoperable afterwards, will it?

Thanks for any help

By: qdideas

qdideas — Wed, 19 Nov 2008 23:36:10 +0000

Sounds like your DMG of leopard is corrupted.

By: Nick

Nick — Wed, 19 Nov 2008 20:57:54 +0000

I’m having a bit of a problem, maybe you will be able to help.

I have two hdds installed and a dmg of leopard.

I go into the disk utility, and try to use the restore feature with no luck.

I get either an error one, or an error 16, both telling me the copy failed.

Today, I purchased a 500gb firewire drive to try to get it to work. No luck, same error.

When I try to do the same think on my macbook, (I am trying to install leopard on my powermac running osx 10.3 )
When I do it on my macbook, it begins to copy files, and works for several minutes, and then I get an error stating: could not restore, operation not supported.

What am I doing wrong? Any insight?

I have a dl burner available to me.

I have my original osx leopard install disks that came with my macbook.

Any suggestions?

By: davak

davak — Wed, 05 Nov 2008 10:10:58 +0000

You will have to use another computer to either burn the dmg to a DVD or an external hard drive.