I have downloaded the El Capitan dmg file (InstallMacOSX.dmg) provided by Apple. The expanded dmg image contains the package 'InstallMacOSX.pkg' which should be run to create the El Capitan installer but fails with the following message 'This version of OS X 10.11 cannot be installed on this computer.' presumably because quite reasonably it would not make sense to install on top of a later version of the OS. However in this case I want to create a boot USB drive for an installation on another Mac.

With the release of El Capitan, the script to create a Bootable ISO for VMware of Mavericks and Yosemite does not seem to work anymore on the El Capitan official release. The ISO simply does not. However, you need the following requirements to create a great bootable USB installer for Mac OS El Capitan. How to create a bootable MacOS USB.

Create El Capitan Usb Installer

I am stuck in a chicken and egg situation where I need another machine running El Capitan or earlier to create and El Capitan boot installer.