Download the Mountain Lion installation files from the Mac App Sore then run the free app. The app looks for the downloaded installation files in the Application folder. The option involves downloading and installing the free app Lion Diskmaker.
I recommend this easy option, but if a user doesn’t want to bother with third-party software, even if it is free and safe, then we offer a second alternative that takes a little more work.īefore performing either method of upgrading, be sure to follow our guide for getting ready for Mountain Lion. The easiest option includes installing a really simple utility. The user can also work with an SD card but that’s not recommended since some machines might not boot to an SD card. Users don’t have to download the upgrade on each system if they follow the steps below for creating a DVD or USB install disk with Mountain Lion’s upgrade installation on it. Why must I download the upgrade three times on each system?
Why not download it once and then install from that download to each system.įor example, I use a MacBook Pro, MacBook Air and a Mac Mini. Apple wants users to download it on each system from their store, but that can take up precious time and bandwidth. Once created, you can use the installation unit to reinstall the operating system on another hard drive or to do so on as many computers as you want, without needing to download it once again.Users can now download and install OS X 10.8 Mountain Lion from the Mac App Store.
The easiest way to create an OS X installer in just a few clicks. Then it will propose the creation of the bootable disc on a USB pendrive or any other unit available without the user having to worry about anything. It's easy: you've only got to run the application for it to take care of locating the installation program thanks to Spotlight. This application allows us to mount a boot unit for Mac from the operating system's installation program that you can download from the App Store. Creating a bootable disc for OS X is as easy as using a tool like DiskMaker X.
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