Snow leopard install not working

Trying to upgrade from leopard to snow leopard on my macbook, for some reason i think the install did not work (still says it is running on version 10.5.8) i am trying to upgrade to snow leopard so that i can move on to lion..Help!

MacBook, Mac OS X (10.5.8)

Posted on Jun 6, 2012 5:13 PM

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17 replies

Jun 6, 2012 5:20 PM in response to Corkface

Boot from the Snow Leopard DVD:


Booting From An OS X Installer Disc


1. Insert OS X Installer Disc into the optical drive.

2. Restart the computer.

3. Immediately after the chime press and hold down the "C" key.

4. Release the key when the spinning gear below the dark gray Apple logo appears.

5. Wait for installer to finish loading.


Repair the Hard Drive and Permissions


After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the installer.


If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.

Quit DU and return to the installer. Just follow the onscreen instructions. Snow Leopard will automatically upgrade your Leopard system.

Jul 1, 2012 3:17 AM in response to leilaboxergirl

leilaboxergirl wrote:

You need the latest version to install snow leopard in order for it to work

Not true. You just need a version that supports your Mac. In general, that means a version released after your Mac model was released. So for instance, any Mac that came with Leopard installed was released before Snow Leopard was, so any version of the Snow Leopard installer disk will work with it, as long as it meets the minimum system requirements for Snow Leopard.

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Snow leopard install not working

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