- #How to install os x on external hard drive mac os x#
- #How to install os x on external hard drive upgrade#
- #How to install os x on external hard drive free#
- #How to install os x on external hard drive mac#
You can do that with MacKeeper’s Find & Fix feature, which will scan your Mac for a variety of different problems. It’s a good idea to keep your Mac optimised when you’re asking to create a bootable USB drive. It’s a handy appliance-even more so if you use a small external flash drive that you can carry in a pocket. You can also use it to reinstall the operating system on a Mac that won’t startup. Such a tool allows you to install any version of macOS on multiple Apple computers easily. Why would you want to create an external boot drive for your Mac?
#How to install os x on external hard drive upgrade#
Once booted, you'll be able to install or upgrade El Capitan as you normally would.A bootable macOS (previously, OS X) install disk is a portable device containing all the necessary installation files for a selected version of macOS. Whichever method you use, you should be able to boot from your new USB drive either by changing the default Startup Disk in System Preferences or by holding down the Option key at boot and selecting the drive. Give it some time, and your volume will soon be loaded up with not just the OS X installer but also an external recovery partition that may come in handy if your hard drive dies and you're away from an Internet connection. The command will erase the disk and copy the install files over. Sudo /Applications/Install\ OS\ X\ El\ Capitan.app/Contents/Resources/createinstallmedia -volume /Volumes/Untitled -applicationpath /Applications/Install\ OS\ X\ El\ Capitan.app -nointeraction
#How to install os x on external hard drive mac os x#
Assuming that you have the OS X El Capitan installer in your Applications folder and you have a Mac OS X Extended (Journaled)-formatted USB drive named "Untitled" mounted on the system, you can create an El Capitan install drive by typing the following command into the Terminal. If you don't want to use Diskmaker X, Apple has actually included a terminal command that can create an install disk for you. The process is outlined in screenshots above. Choose your disk (or partition) from the list that appears, verify that you'd like to have the disk (or partition) erased, and then wait for the files to copy over. It will then ask you where you want to copy the files-click "An 8GB USB thumb drive" if you have a single drive to use or "Another kind of disk" to use a partition on a larger drive or some other kind of external drive. Select OS X 10.11 in Diskmaker X, and the app should automatically find the copy you've downloaded to your Applications folder. If you're comfortable with the command line, it's still possible to create a disk manually using a Terminal command, which we'll cover momentarily.
#How to install os x on external hard drive free#
Diskmaker X is free to download, but the creator accepts donations if you want to support his efforts.ĭiskmaker X has actually been around since the days of OS X 10.7 (it was previously known as Lion Diskmaker), and it's still the easiest GUI-based way to go without intimidating newbies.Version 5 is the one with official El Capitan support. If you want a GUI, you need the latest version of Diskmaker X app.The installer will delete itself when you install the operating system, but it can be re-downloaded if necessary. The OS X 10.11 El Capitan installer from the Mac App Store in your Applications folder.For newer Macs, use a USB 3.0 drive-it makes things significantly faster. An 8GB or larger USB flash drive or an 8GB or larger partition on some other kind of external drive.We've created El Capitan USB stick from both Yosemite and El Capitan, but your experience with other versions may vary. A Mac that you have administrator access to, duh.There's the super easy way with the graphical user interface and the only slightly less easy way that requires some light Terminal use. Whatever the reason, you're in luck, because it's not hard to make one.Īs with last year, there are two ways to get it done. Or maybe you need a recovery disk for older Macs that don't support the Internet Recovery feature. For instance, if you find yourself doing multiple installs, a USB drive may be faster than multiple downloads (especially if you use a USB 3.0 drive). Things have proceeded remarkably smoothly since version 10.7 switched to download-only installers, but there are still good reasons to want an old, reliable USB stick. It was 2009 when Apple last released a new operating system on physical media. Further Reading OS X 10.11 El Capitan: The Ars Technica Review
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