Note: Command lines can vary slightly depending on the exact version of the installer script. Always ensure you have a backup before running system-level terminal commands.
An ISO file, also known as an ISO image, is a type of file that contains the contents of an optical disc, such as a CD, DVD, or Blu-ray disc. It's a single file that can be used to create a bootable disc or USB drive. os x el capitan iso
To run OS X El Capitan, your Mac must meet the following system requirements: Note: Command lines can vary slightly depending on
Ensure your Mac can actually run El Capitan. also known as an ISO image
# 3. Mount the blank disk image hdiutil attach /tmp/ElCapitan.sparseimage -noverify -nobrowse -mountpoint /Volumes/install_build