![]() Launch the App Store app and download the current edition of Mavericksĭouble-click the installer, click 'Show All Disks' and you'll be asked which disk you want to install Mavericks on.Ĭhoose your test partition, "Yosemite Test".Ĭlick install and the installation process will run.Ĭongratulations, you have Mavericks running on two partitions on your Mac. To test this, we're going to install OS X Mavericks. You should now have a test partition (or an external drive) on which you can install Yosemite.Īpple isn't yet distributing Yosemite, but it makes sense to test whether you've managed to set the partition up correctly. To do so you'll have to disable File Vault, or, if using Boot Camp, install the test OS on an external drive. If you use Boot Camp or File Vault adding a new partition is a little more complicated. Ensure the Format chosen is Mac OS Extended (Journaled).Ĭlick Apply, and you'll have a new partition. Name the partition appropriately, "Yosemite Test," for example. If your Mac uses an SSD drive then make sure you select that.Ĭlick the Plus button to add a new partition to your disk (30GB-40GB should suffice for testing the beta). Select your Mac's main drive (the gray drive icon). You'll see your Macintosh HD and any connected internal or external disks listed there. If you don't have a second Mac and still want to explore Yosemite it may help to create a new partition on your drive and run the new OS on that. You do not want to install the Yosemite beta on your primary Mac - it's beta software and that means problems are possible and you will not want to lose your data. But I recommend that any Mac user also keep a second backup on an external USB drive using CarbonCop圜loner. Run Software Update and ensure your current system is up-to-date.īefore you follow the next step, and certainly before you install Yosemite Beta on your Mac, be sure to backup your system. There are some limitations to what you can do with what you learn (you can't talk about the beta online), but you do at least get to use it and help improve it. ![]() To join the program, visit this link and follow the Sign Up process, which requires your Apple ID. ![]()
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