Comments on: Install Snow Leopard from External Firewire or USB Hard Drive, or How to Upgrade to 10.6 Without a DVD Drive

By: mmiikkee

mmiikkee — Tue, 23 Feb 2010 14:18:37 +0000

More specifically “Macintosh HD” is a volume (partition) on the Hard Disc Drive. The Hard Drive itself can only have one set of disc drivers, no matter how many volumes you create on it. The choice of Apple Partition Map Scheme or Global Unique Identifier (GUID) is decided once for the entire Hard Disk Drive. Intel Macs Boot from GUID and PPC Macs use APMS.
On Intel Macs it is possible to boot from the disk image of Snow Leopard Installer. If the disk image is on an external drive and you launch the installer app within the disk image, then your Mac will attempt to boot from the disk image. Therefore it is not necessary to clone the contents of the Leopard Installer disk image to another drive and run from that.

If you found that your disk image will not boot then perhaps it’s not authentic, perhaps someone tried to download it via windows or use another image tool to create it.

My way of doing this:
I happen to use Mac OSX Server’s Netboot and have every Mac OS X Installer version that I can boot from via my network.

There are ways to setup a netboot server on a client Mac without OS X Server.

By: Installare Snow Leopard senza un lettore dvd | BASIC TRADING MULTIMEDIA

Tue, 19 Jan 2010 14:15:57 +0000

[...] A questo punto seguire al procedura guidata di aggiornamento.La guida originale in inglese [...]

By: Presto

Presto — Mon, 18 Jan 2010 14:45:41 +0000

Here are some points to consider if you still don’t succeed, even with the excellent step-by-step advice of the experts:

Remember that “Macintosh HD” or “My Mac” is NOT your internal hard drive – its only something on the drive. Now, if you try to install osx 10.6 and it says it can’t install on “Macintosh HD”, it probably means you simply have to reformat the DRIVE with the GUID option ticked. The GUID option will appear in Disk Utility ONLY when you choose to reformat the Toshiba or whatever drive. The option is NOT there if you try to reformat “Macintosh HD” because Macintosh Hard Drive is not a hard drive

Just before reformatting, don’t forget to check that you really have backed up your disk on the external HD (borrow one if necessary). If you are using Time Machine don’t be afraid if you only see a folder called Backups.backupdb The backup(s) are in there in another folder that might be called “Admin’s Imac” – even if you’re on a MacBook

To summarise:
- Macintosh HD” is not a hard drive
- Your MacBook disk backup might be called Imac

By: Happy New Year from OS X Daily! - OS X Daily

Happy New Year from OS X Daily! - OS X Daily — Fri, 01 Jan 2010 08:02:00 +0000

[...] Install Snow Leopard from an External Firewire or USB Hard Drive / How to Upgrade to Mac OS X 10.6 w… [...]

By: David

David — Sat, 28 Nov 2009 19:55:46 +0000

BECAREFUL WHEN YOU ARE DOING THIS. This is a very risky way of doing this. I have accidentally restored my whole hard drive in 1 second. If you messup one time, you will have your HDD restored. There’s an alternate and safer method, please google around.

By: sionie's me2DAY

sionie's me2DAY — Fri, 27 Nov 2009 17:25:50 +0000

Lindsey의 …

Install Snow Leopard from External Firewire or USB Hard Drive, or How to Upgrade to 10.6 Without a DVD Drive…

By: Adam

Adam — Wed, 18 Nov 2009 00:51:23 +0000

It wont work
it gives me the message
Could no find any scan info. The source image needs to be imagescanned before it can be restored
Any help is appreciated
Adam

By: siddharth Sharma

siddharth Sharma — Sat, 14 Nov 2009 02:40:56 +0000

ok so my hard drive already has my backup on it and i am not wanting to format the whole thing. is there a way i can make only the the second partition GUID ?
Help would be appreciated

By: His_wife87

His_wife87 — Thu, 22 Oct 2009 23:09:11 +0000

Because that is how traffic is supposed to work! ,

By: Install or Upgrade Snow Leopard 10.6 from External Firewire or USB Hard Drive « Le Kevin dot com

Wed, 14 Oct 2009 07:29:05 +0000

[...] http://osxdaily.com/2009/09/02/install-snow-leopard-from-external-firewire-or-usb-hard-drive-or-how-... Share and [...]

By: santiago

santiago — Mon, 28 Sep 2009 23:55:26 +0000

I was worried about the mbr or guid because i had to erase a lot of stuff wich didnt want to backup yo switch to guid, so i gave it a try with MBR, and it works like a charm.

By: ron desortes

ron desortes — Wed, 23 Sep 2009 12:07:31 +0000

Heys, i’m quite confused about this, but does this show the same thing, albeit in a more straight forward manner? (sorry article author!)…

http://cogito.faii.net/converting-mac-os-x-10-6-snow-leopard-installation-disk-into-a-disk-image-or-a-drive/

By: Mitch

Mitch — Thu, 17 Sep 2009 07:30:14 +0000

Hi everyone

I have setup the SL install image on my external hard drive, using the “restore” function of Disk Utility.

Everything looks fine, the disk is partitionned with GUID, it’s bootable, my mac sees it, the content of the disk looks just like the content of the dvd, including the big “X” background.

When starting the install, it starts with saying that there are 45 minutes left, and the blue progress bar goes on… but only after something like 5 minutes. it reboots. Then, it apparently tries to boot from the external hard drive (which it should not if the first phase had gone right), and hangs on the startup screen (apple logo with small progress animation)…. for hours, if I leave it.

Is my disk image ruined ? Is the disk itself damaged maybe ? Ideas ?

By: Miguel

Miguel — Wed, 16 Sep 2009 00:19:30 +0000

Can I use an iphone to do that partition and install SL?

By: Ivan

Ivan — Tue, 15 Sep 2009 11:55:31 +0000

Can i have my HDD usb drive partitioned in two parts and one of those make it bootable.