how to format drive mac install os x el capitan

you already downloaded InstallOSX.dmg to your USB drive, so skip this step.

Note for Windows users running Linux from VirtualBox:.The Apple download contains a recovery image called BaseSystem.dmg which needs to be copied to a correctly partitions and formatted recovery USB or ISO. Create other Installer USBs from El Capitan in VirtualBox.Create an El Capitan Installer ISO with VirtualBox from the Recovery image.Images should also work, but you might have trouble getting macOS Sierra to boot in VirtualBox. In all cases you should first download the El Capitan Installer, as a direct download from Apple (no App Store). Including disk images directly from Apple's IT support pages,Īnd open source utilities for extracting and converting pkg, dmg, and HFS+. The downloads used in this process are legal and freely avaliable. You can still create a bootable OS X recovery USB, and you can use that to create an Installer USB. If your Mac is out-of-order or you otherwise cannot download macOS from the App Store, See How to create a Bootable MacOS Recovery USB from Linux

How to format drive mac install os x el capitan