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I was given a Mac Pro 1,1 2006 2x2.66 GHz Xeon. It currently has OS X 10.6.8. I do not have the original Snow Leopard installation disk.

It currently has the original 250GB hard drive, and I wish to replace it with a SSD. I'd also like to upgrade to OS X 10.7 Lion - the latest version that supports this model. The OS upgrade is not absolutely necessary, but I figure that I may as well upgrade the OS if I can.

I have no data or software on the current drive that I need to keep.

I've looked for but could not find information on the Internet that will guide me on the procedure to replace the current hard drive and install a compatible OS.

Can anyone refer me to a document that will guide me, or perhaps suggest the appropriate course of action?

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  • I'm not sure which part you are asking for help with - how to fit the SSD, whether to clone or start from scratch, how to obtain Lion, or how to install it? Could you edit your question to give us a single issue to work on? SE works best when there is one clear question with one clear answer.
    – Tetsujin
    Commented Jan 5, 2017 at 7:50
  • @Tetsujin is right, your question seems to cover lots of issues. If you're just looking for a place to start, maybe upgrade to Lion from Snow Leopard (using the App Store) and once you've done that and got everything working as you want, come back here to ask a question about replacing the hard drive with an SSD.
    – Monomeeth ♦
    Commented Jan 5, 2017 at 9:11
  • Thank you for the suggestions on editing my question. In the future I will be more focused on my inquiry. However, since Michael Gaskill submitted an answer that addresses each of the points in my question, I should probably not edit it.
    – JohanTux
    Commented Jan 5, 2017 at 14:23

1 Answer 1

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Acquiring Snow Leopard 10.6

Should you need the physical disk, you can order the Snow Leopard 10.6 installation disk directly from Apple, from this page: http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard

Acquiring Lion 10.7

Likewise, you can order Lion 10.7 from Apple, from this page: http://www.apple.com/shop/product/D6106Z/A/os-x-lion. Note that you will not receive physical disks, but an email with a content code for the Mac App Store that you can use to download the Lion 10.7 upgrade.

If you had not already purchased Lion 10.7 through the App Store (before July 2012), you will no longer be able to locate it there; Apple has removed it and Lion 10.7 can no longer be purchased for download through the App Store. As you're using 2006-era hardware, you will not be able to upgrade to a newer OS version than Lion 10.7. See this MacWorld article for additional information.

Upgrading the Hard Drive

This fantastic article shows how to replace the hard drive on a Mac Pro machine. Follow the steps, and you will have the new hard drive functional in just a few minutes.

The basic steps are:

  1. Make sure that you have a compatible SSD (check the compatibility chart for the SSD vendor)
  2. Get your small Phillips head screwdriver ready in advance
  3. Follow proper anti-static procedures (static kills computer equipment)
  4. Open and remove the side access door, using the latch on the rear of the machine
  5. Choose an empty hard drive bay, make sure that it's unlocked, and pull it out
  6. Connect the SSD to the tray using the 4 Phillips head screws
  7. Slide the tray (with SSD) back into place in the machine and make sure that it is properly seated
  8. Replace and close the side access door

At this point, you will have the original hard drive and the new SSD installed and ready for use.

Transfer Content to New Hard Drive

You can use the Disk Utility program to transfer the content from your previous Snow Leopard hard disk to the new SSD. Detailed instructions can be found in this article.

The essential steps are:

  1. Boot into Recovery Mode (hold ⌘ R during boot)
  2. Launch Disk Utility from Recovery Mode
  3. Select the disk partition
  4. Choose the Restore pane on the right side of the window
  5. Select the target partition (the new SSD)
  6. Click the Restore button to start the cloning process

Be prepared for the process to take a considerable amount of time, especially if the original hard disk has a lot of content; all of that content needs to be moved.

Upgrading to Lion 10.7

This is a great point to do the upgrade to Lion 10.7, because you now have a backup copy of the original hard drive and can safely restore if any problems occur.

LifeHacker has a great article that covers the upgrade process.

These steps can be summarized as such:

  1. Check your machine's compatibility against the specs
  2. Update your OS X system and apps before you start
  3. Open the App Store, go to Purchases, and enter your Lion 10.7 content code
  4. If you cannot see the Lion download at this point, hold the ⌘ key and click the Purchases tab again and click Download
  5. After the download is complete, click the Continue button on the installation window
  6. Agree to the license terms, choose your SSD volume, and provide your Administrator password when prompted
  7. The installation process will begin, and may take some time as your system is upgraded
  8. Once installation has completed, restart your machine
  9. Update your OS X system and apps to the current compatible versions

At this point, you should have a fully functional Lion 10.7 installation, ready for use.

Cleaning Up

Once the SSD has all of the content from the original hard drive, the hard drive may either be removed or used as a secondary storage location. Remember that this is a 12-year-old hard drive, and operational lifetimes for hard drives are typically in the 5-8 year range. If there are any issues at all with the hard drive, you're better off removing and disposing of it (many electronics stores will properly dispose of it for you).

If you decide to keep the original hard disk, this can give you quite a lot of available disk space, but you should erase or repartition it for 2 main reasons:

  1. to prevent boot-time confusion about which volume (disk) is primary
  2. to reclaim the storage used by the content that is now cloned to the SSD
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  • I did order the 10.6 disk from Apple store. After reading that a lot of the 10.7 updates were centered around UI and bringing iOS features in, I've decided to remain with 10.6. Much of my confusion was due to an incorrect assumption on my part - that since 10.7 required 10.6 to update, then 10.6 would require a previous OS disk in hand to install.
    – JohanTux
    Commented Jan 6, 2017 at 19:52
  • Good deal. I hope everything goes well on your SSD upgrade. Once it's done, it'll almost feel like a modern machine. :D
    – Michael Gaskill
    Commented Jan 6, 2017 at 20:03
  • lol - maybe, but the only thing it's going to be doing is running Reaper, so it'll be fine.
    – JohanTux
    Commented Jan 9, 2017 at 3:05

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