El Capitan Not Installing

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Installing El Capiton on an old Mac Book Pro today, I received the error:

OS X could not be installed on your computer

Installing

OS X El Capitan won't install on these two MacBook Pros (8,1). Let's find out!Support the show and get in the credits http://Patreon.com/KrazyKenWant. This is not an exhaustive list of the issues affecting Apple OS X El Capitan, but it is a good collection of the more well known issues and their respective fixes. Preparing Mac Device for the Installation of Mac OS X El Capitan Both Mavericks and Yosemite are easier to download and install on Mac devices, however, this is not the case with Mac OS X El Capitan. If you’re running Mountain Lion 10.8, you will need to upgrade to El Capitan 10.11 first. How to download and install MacOS Big Sur? If you’re running any release from macOS 10.13 to 10.9, you can upgrade to macOS Big Sur from the App Store, just search ‘macOS Big Sur’ in App Store to download and install.

Os x el capitan not installing

No packages were eligible for install. Contact the software manufacturer for assistance.

El Capitan Won't Install

Quit the installer to restart your computer and try again.

I checked Apple’s support Matrix (it is a very old macbook pro) at https://support.apple.com/kb/SP728?locale=en_GB and it was listed as supported.

After lots of Googling and investigation, I discovered that the date and time were not set to current, the macbook thought it was year 2000.

You can easily reset the time and date by following the steps below:

  • Click Utilities on the menu bar
  • Select Terminal
  • Type date
  • Confirm the date is wrong
  • Type date 062112422016 (example: June 21st 12:42 2016)
  • Exit terminal
  • Click Restart
El Capitan Not InstallingEl Capitan Not Installing

Install El Capitan App

Once the Date and time are configured you will be able to install OS X.

El Capitan Unable To Install

Easy fix, for a ridiculous error!