How-to Make a Bootable Mac OS X 10.7 Lion USB Key from the InstallESD.dmg on Mac OS X 10.11 El Capitan

Making a Mac OS X 10.7 Lion USB Bootable Key on Mac OS X 10.11 El Capitan

The Mac Tutorial Shows You Step-by-step How-to Create a Bootable Mac OS X 10.7 Lion USB Key from the InstallESD.dmg on Mac OS X 10.11 El Capitan.

The First Step is to Make a Virgin USB Key that contains purelly Free Space on Mac OS X 10.11 El Capitan.

But the GUI Function to make this is Easily by Mac ‘Disk Utility’ have been Dropped on Mac 10.11 El Capitan!

So to Achieve this is Usefull Task we’ll Forced to make use of the Mac Terminal Shell commands.



Thanks to: Making a bootable USB key from an .iso image on Mac OS X

How-to make a Bootable USB Mac OS X 10.7 Lion on Mac OS X 10.11 El Capitan - Featured



  1. Open a Shell Terminal emulator window
    (Press “Enter” to Execute Commands)

     - Open Terminal
  2. First Make a Virgin USB Key on Mac 10.11 El Capitan

    Freeing Up USB Stick on Mac El Capitan
  3. LogIn as SuperUser

    sudo su

    Insert your Admin Pass…

  4. Access the InstallESD.dmg Directory
    Example:

    cd ~/Downloads
  5. Convert InstallESD.dmg to ISO

    hdiutil convert InstallESD.dmg -format UDRW -o macInstallDvd.iso
  6. Find the USB Stick:

    diskutil list

    In the output it should look like:

    /dev/disk3 (external, physical):
       #:                       TYPE NAME                    SIZE       IDENTIFIER
       0:                                                   *8.0 GB     disk3   
    
  7. Write Mac 10.7 Lion ISO to USB Bootable
    Triple Check the Command before Execution! (You may Damage another one Disk…)

    dd if=./macInstallDvd.iso.dmg of=/dev/rdisk3 bs=1m

    Put rdiskN instead of diskN to make it burning faster…
    Then Wait until the process is Successfully Achieved!

  8. (Optional:) LogOut from SuperUser session

    exit