Apple MacBook Pro: Upgrading OS X Snow Leopard 10.6 to El Capitan 10.11 with 2 Factor Authentication On

Wow, what an adventure.

We have a MacBook Pro 13" early 2009 laptop here in the shop that has been sitting idle for a while.

We installed a new SSD in the unit and bumped the RAM up to 8GB.

Then, on to installing a fresh copy of Snow Leopard 10.6 via the installer DVD.

We needed to use the Disk Utility in the installer to set up a partition prior to being allowed to install the OS.

Once in, we went through the updates process.

Then, on to upgrading OS X to El Capitan 10.11.

What a pain. Because we are on what is essentially an ancient OS version all of the apps were uncooperative due to the 2 Factor Authentication (2FA) that is enabled on our Apple ID.

Safari would not work with Apple's sites for authentication either due to SSL compatibility issues.

Searching meant using buckshot terms to try and figure out exactly what needed to be done to allow the upgrade to proceed in the App Store.

The long and short of it found here is to do the following:

1. Open Safari and navigate to this Apple Support page: How to upgrade to OS X El Capitan
2. Scroll down to Step 4 and click on the Get El Capitan link to bring up the App Store
3. Click the Get button in the store
4. On a trusted device such as an iPhone
1. Tap into Settings --> Your Name --> Password & Security
2. Tap on the Get Verification Code at the bottom of that page
5. On the MacBook Pro enter the Apple ID and the Password
1. YourAppleID@YourDomain.Com
2. YourAppleIDPassword123456
• 123456 = Verification Code

The verification code gets tagged on to the password at the end as above.

It's a monster weighing in at 6.21GB so a good fast connection should be used to download this one!

Philip Elder
Microsoft High Availability MVP
MPECS Inc.
Co-Author: SBS 2008 Blueprint Book
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