![]() ![]() Connect the USB flash drive or other volume that you're using for the bootable installer.Use the 'createinstallmedia' command in Terminal You will create the bootable installer from this app, not from the disk image or. It installs an app named Install OS X El Capitan into your Applications folder. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. Your Mac will display the Startup Manager.Įl Capitan downloads as a disk image. Start up the Mac, holding down the Option/Alt key while it is booting up. Plug the external drive into the Mac that you want to install the macOS on. Make a Yosemite boot disk! Learn how to use DiskMaker X 5 to quickly and easily create a Mac OS X 10.9 Yosemite USB Boot Disk. Go to Applications Utilities Disk Utility. Subsequently, perform the following steps to create a disk image of your Mac startup disk: 1. First off, quit or stop any apps and services to minimize writing on to the startup drive during the image creation process. Methods to Create Disk Image of Startup Disk. Currently, that's the Yosemite Beta version. To start out, download the newest version of DiskMaker X from its website. The Easiest Way: Use DiskMaker X By far the easiest way to create a bootable drive is to use the DiskMaker X application, which automates the entire process in the next method. Select Storage from the sidebar, then select your storage device from. Choose Apple menu ( ) About This Mac, then click the System Report button. Connect your external storage device to your Mac. How to create an external Mac startup disk for macOS Sierra. Download the Yosemite installer from the Mac App Store and make sure it’s in your main Applications folder (/Applications)-it’s called Install OS X Yosemite.app. ![]()
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