Updating Your OS - Best Practices | None | The MacXperts

Updating Your OS - Best Practices

SUMMARY

At the time of this writing (8/5/2009), Apple has just released 10.5.8. Looks like a perfect time to review the Best Practices for updating your operating system.

BACKGROUND

The fundamental question is: “Should I update/upgrade my operating system?” A proper answer requires a bit of thought:

Pros
  • Security patches make your computer more secure
  • Bug fixes make your computer more stable
  • Feature enhancements provide additional functions
Cons
  • May require more RAM
  • May require more disk space
  • May decrease performance
  • May induce catastrophic data loss due to improper installation procedures
Unless there is an overwhelming Con, the Pro’s always trump. However, it is this last “gotcha” I will be addressing in this blog.


BEST PRACTICES

In order to avoid the heartache of data loss, I have outlined below the Best Practices to updating/upgrading your Mac operating system.
  1. Run directory and system diagnostics and repair. This can be done by using Mac HelpMate and either AppleJack or running fsck in single user mode (see my blog “Routine Maintenance&rdquoWinking
  2. Create a clone backup of your boot drive. This is essential in the event of problems after the update, you are able to restore your boot drive to it’s original state. For more information about how to create a clone backup, see my blog “Back Up!
  3. For system updates, download a Combo Update not a Delta Update. Delta updates are what typically appears in the Software Update window. Combo updates must be manually found on Apple’s site. For 10.5.8, the combo update is available here. For updates other than system updates (such as 10.5.7 to 10.5.8), the updates provided in the Software Update window will work well.
  4. Before installing the update, shut down your computer, disconnect all peripherals except monitor, keyboard, and mouse, start up, make sure no other applications are running - including anti-virus scans.
  5. Run the combo updater.
  6. When the update completes, allow it to reboot the computer on it’s own. This can often take 30 minutes or more while the system looks stalled.
  7. After the system reboots and you are returned to the desktop, repeat step 1 for both Mac HelpMate and either fsck or AppleJack.
  8. Launch and run your applications to verify at least minimal functionality.