![]() Choose the appropriate command line (in red) depending upon what OS X installer you want. Open the Terminal in the Utilities' folder. ![]() Set the Format type to Mac OS Extended (Journaled.) Click on the Apply button and wait for the Done button to activate. ![]() Right-click the InstallESD.dmg file and select Copy from the pop. Within the SharedSupport Folder is an image file called InstallESD.dmg. Right-click on Install OS X Lion (this is the installer you downloaded from the Mac App Store), and select Show Package Contents from the pop-up menu. You will need an 8GB or larger USB flash drive that has been partitioned and formatted for use with OS X. Simply replace the Terminal command with the one from the preceding article by copying it into the Terminal window. Second, see this How To outline for creating a bootable El Capitan installer. Here's how to do it from text commands and using a purpose-built software called WizDMG.įirst, review this introductory article: Create a bootable installer for macOS. To create a bootable macOS installation disk, you have to burn the DMG file to a USB drive as CD/DVD is not available for Mac computers. It can also help in situations where the operating system is corrupted or installation from app store shows errors. It installs an app named Install OS X El Capitan into your Applications folder. ![]() Open this file and follow the onscreen instructions. ![]() OS X El Capitan downloads as a disk image that contains a file named InstallMacOSX.pkg. It installs an app named Install macOS Sierra into your Applications folder. Are you trying to make a bootable installer? Do you have the El Capitan installer downloaded from the App Store? You cannot make a bootable DVD but you can make a bootable flash drive.īootable USB Installers for OS X Mavericks, Yosemite, El Capitan, and Sierra ![]()
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