Install And Dual-Boot OS X El Capitan With Yosemite On Separate Partition [Tutorial]

Want to test El Capitan however don’t wan na destroy your existing Yosemite setup? The following step by step tutorial will assist you set your Mac in a way where both OS X El Capitan beta and Yosemite will certainly be on separate partition and you can access them both making use of dual-boot setup.



  • Supported Mac model: OS X 10.11 El Capitan Mac Compatibility List.
  • 15GB of free disk space on the hard disk drive.
  • Apple Developer account.

Download OS X El Capitan:

First, you will certainly require to download OS X 10.11 El Capitan beta from Apple Developer website. To do this, go to Member Center on Apple Developer website and check in with your Apple ID.

When you are in Member Center, click on SDKs, followed by selecting OS X under Platforms and Devices, and after that click on Download.

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Now click Download OS X v10.11 Designer beta.

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This will instantly open Mac App Store and begin downloading El Capitan.

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Producing Partition for El Capitan:

Now you will certainly require to produce a different partition for El Capitan. To do this, launch Disk Utility (look for it in Spotlight Search). First select your disk drive from left most panel, then choose Partition tab and click “+” button under Partition Layout to include a brand-new partition. Provide it a suitable Name and Size. The minimum size for partition required for El Capitan is 15GB however we recommend setting it to 50GB as you will not have the ability to change the size of this as soon as El Capitan is installed. Make sure Format is set to Mac OS Extended (Journaled).

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As soon as done, click Apply > > Partition and let Disk Energy make this partition for you.

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Install OS X El Capitan:

Now established the setup for El Capitan that you downloaded previously. You can find this in Launchpad “Install OS X 10.11 Designer Beta” or in Applications folder in Finder.

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Click Continue and follow the on-screen instructions.

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Select the hard disk partition which you made earlier to install El Capitan on and after that click Install to start the process.

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Once the setup has started, you do not have to do anything. Just wait till the installer completes the procedure. This might spend some time depending upon your Mac model. Your Mac may also restart a few time immediately throughout the installation procedure.

When the installation is full, you will certainly be booted right into OS X El Capitan.

El Capitan Macbook

Dual-boot El Capitan with Yosemite:

To dual-boot in between El Capitan and Yosemite, reboot your computer. Now throughout your Mac startup Chime, hold the Option/Alt key on your keyboard till you see the following menu.


Away select the hard disk partition for whichever OS X version you desire to boot into and your Mac will do the rest for you.

Erasing El Capitan Partition:

When you are done testing El Capitan and not desire it on your Mac, you can delete the partition and combine that area back into major Yosemite partition. To do this, launch Disk Energy and delete the El Capitan partition. Now just resize the primary Yosemite partition back to complete ability and get all your space back in one.

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