Is it possible to install Mac OS 10.4 on an external hard drive from a DVD drive?

Similar questions: install Mac OS 10 external hard drive DVD.

Install Snow Leopard from External Firewire or USB Hard Drive, or How to Upgrade to 10.6 Without If you have a Mac without a functioning DVD drive (or a MacBook 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. OK so the title might be slightly misleading, 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. 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.

Snow Leopard Install DVD imageAs some readers pointed out, this step isn’t required. If you do need to, you can create a DMG file of the Snow Leopard disk, this is very easy. * 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 createdEasy enough right?

Ok so here’s how you create a bootable Snow Leopard installation drive out of your external firewire or USB hard disk. Install Snow Leopard from an external Firewire or 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! Sources: http://osxdaily.com/2009/09/02/install-snow-leopard-from-external-firewire-or-usb-hard-drive-or-how-to-upgrade-to-106-without-a-dvd-drive/ .

The Cat's Mustaches — Installing Tiger without a DVD drive Mac OS X v. 10.4 Tiger now ships on a DVD by default instead of a suite of CDs like Panther used to. This makes for a much faster, smoother installing experience as no disc swapping is required.

Unfortunately, it also raises new questions for users whose Macs are well within the system requirements but do not own a DVD drive. While Apple offers a Media exchange program, users who have purchased the Family Pack and only have one or two incompatible drives will probably not want to revert to the old fashioned CDs. Luckily, there are alternative ways to install Tiger onto your Mac, even without an internal DVD drive.

Note however that they are not officially supported and that they might, under some circumstances, lead to a slightly less stable installation so, as the young people saw nowadays, your mileage may vary. Use an external DVD driveThat might seem like an obvious solution but many Mac users are wondering whether this is possible. The good news is that it is, with most external DVD drives.

Anything modern, self powered, FireWire equipped and using the latest firmware available for it has good chances to do the trick. The difficulty here is that you need to be able to boot from this device. To perform the installation this way, connect the external drive to the Mac, insert the DVD into it and restart your Mac while holding the “Option” key.

After a while, your Mac should present you with a list of all the available boot volumes, which includes this external drive — you may need to wait a few minutes until you can click on it but that’s normal. From there on, simply follow the traditional steps and you should be all righ Sources: http://www.oreillynet.com/mac/blog/2005/05/the_cats_mustaches_installing.html .

Install Snow Leopard from an external Firewire or 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!

Read the full article here: http://osxdaily.com/2009/09/02/install-snow-leopard-from-external-firewire-or-usb-hard-drive-or-how-to-upgrade-to-106-without-a-dvd-drive/ Sources: http://osxdaily.com/2009/09/02/install-snow-leopard-from-external-firewire-or-usb-hard-drive-or-how-to-upgrade-to-106-without-a-dvd-drive/ .

Steps 1. Connect your iPod to a Mac with a DVD drive and ensure that you have enabled mounting... Steps 1. Connect your iPod to a Mac with a DVD drive and ensure that you have enabled mounting of your iPod as a disk.

You should also insert the Tiger DVD. 2. Launch Apple's Disk Utility applet, found in /Applications/Utilities/ 3.

Choose any disk listed on the left hand side and select the "Restore" tab. 4. Here you will see a "Source:" field and a "Destination:" field.

On the left you should be able to find your iPod drive and your Tiger DVD. You want to drag the Tiger DVD to the "Source:" field and the iPod drive to the "Destination:" field. 5.

Next click Restore. You need not check "Erase Destination" unless you just want to (be careful if you are using a normal FireWire hard drive - you could erase all of its contents if you check the "Erase Destination" box! ).

Once that process has completed, your iPod will be a fully bootable Tiger installation image. Simply plug your iPod into the system onto which you'd like to install Tiger, pull up the Startup Disk applet in the System Preferences, and the iPod will appear in the list of available start up volumes (assuming once again you have enabled mounting of your iPod as a hard drive). Select it, click restart and proceed with installation.

Alternatively, on Macs that support Open Firmware, by pressing and holding Option as the computer starts up you will be able to choose the iPod as a startup disk. There are a few additional nuances and implications to this method. First of all, you can also use a disk image to restore your iPod.

If you have trouble using the aforementioned methodology you can first generate an image of your install DVD, then mount that image and then use the mounted volume as the source. Second, since most external hard drives, iPod included, are faster than most internal DVD-rom drives (my iBook's included), this method can greatly decrease the requisite install time (not taking into account the time invested preparing the volume). If you must install Tiger on multiple machines and would like to avoid the dangers of scuffing the disk or would like to decrease the wait time, this is also a viable option.

Lastly, and in my opinion most interestingly, this is a good method of making an install partition. Once you get the system to boot off the iPod (or external hard drive), if you have made a disk image of your install DVD you can easily use Apple's disk tools to format a small 3 gig-or-so partition and restore it with the install DVD's image. This way if in the future you need to do a fresh Tiger install, you can simply boot off of this partition and zap, new system in no time.

Sources: http://guides.macrumors.com/Installing_Mac_OS_X_10.4_without_DVD .

Possible to install Mac OS 10.4 on an external hard drive from a DVD drive... I've seen many posts concerning Apple's decision to ship Mac OS X 10.4 exclusively on DVD. While I understand that Apple has offered its customers a $10 exchange option to "downgrade" to CDs, I would like to post a second option for those more adventurous types. Mac OS X Tiger can be installed from any FireWire Hard Drive or any iPod with FireWire (4th Generation iPod or earlier).

EditRequirements 1. Tiger install DVD 2. A friend's Mac with a DVD drive 3.An iPod with a FireWire cable.

(You cannot start a Mac off of a USB drive) If you don't have an iPod, any FireWire drive will work, as long as it has about 2.5Gb of space free editSteps 1. Connect your iPod to a Mac with a DVD drive and ensure that you have enabled mounting of your iPod as a disk. You should also insert the Tiger DVD.

2. Launch Apple's Disk Utility applet, found in /Applications/Utilities/ 3. Choose any disk listed on the left hand side and select the "Restore" tab.

4. Here you will see a "Source:" field and a "Destination:" field. On the left you should be able to find your iPod drive and your Tiger DVD.

You want to drag the Tiger DVD to the "Source:" field and the iPod drive to the "Destination:" field. 5. Next click Restore.

You need not check "Erase Destination" unless you just want to (be careful if you are using a normal FireWire hard drive - you could erase all of its contents if you check the "Erase Destination" box! ). Once that process has completed, your iPod will be a fully bootable Tiger installation image.

Simply plug your iPod into the system onto which you'd like to install Tiger, pull up the Startup Disk applet in the System Preferences, and the iPod will appear in the list of available start up volumes (assuming once again you have enabled mounting of your iPod as a hard drive). Select it, click restart and proceed with installation. Alternatively, on Macs that support Open Firmware, by pressing and holding Option as the computer starts up you will be able to choose the iPod as a startup disk.

There are a few additional nuances and implications to this method. First of all, you can also use a disk image to restore your iPod. If you have trouble using the aforementioned methodology you can first generate an image of your install DVD, then mount that image and then use the mounted volume as the source.

Second, since most external hard drives, iPod included, are faster than most internal DVD-rom drives (my iBook's included), this method can greatly decrease the requisite install time (not taking into account the time invested preparing the volume). If you must install Tiger on multiple machines and would like to avoid the dangers of scuffing the disk or would like to decrease the wait time, this is also a viable option. Lastly, and in my opinion most interestingly, this is a good method of making an install partition.

Once you get the system to boot off the iPod (or external hard drive), if you have made a disk image of your install DVD you can easily use Apple's disk tools to format a small 3 gig-or-so partition and restore it with the install DVD's image. This way if in the future you need to do a fresh Tiger install, you can simply boot off of this partition and zap, new system in no time. Sources: http://guides.macrumors.com/Installing_Mac_OS_X_10.4_without_DVD .

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