Bootable USB Stick - El Capitan/Mountain Lion

Using a MacBook running El Capitan, can I create a bootable USB key to run Cougar?

Unless you've downloaded the OS X App Store before the publication of the Mavericks Mountain Lion, your only option is a purchase ($20USD) Cougar via the Apple store online. Once you have downloaded the OS X App Store ML using this purchase key, you can then run DiskmakerX top to make a USB bootable (8 GB min).

The current (5.0.3) of DiskMaker X version only works with the Mavericks, Yosemite and El Capitan. Mountain Lion, to the 3.0.4 version on the developers site. It provides a direct download link to it. I don't know if this old X DiskMaker work on El Capitan.

Tags: Mac OS & System Software

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