OS X Recovery Disk Assistant Does the OS X Recovery Disk Assistant introduced by Apple for Lion works for any later macOS?
More precisely, will this tool create a bootable copy of the existing internal Recovery Partition onto an external drive, regardless of which version the Recovery Partition contains?
This software did work with versions of OS X beyond Lion. However, with El Capitan and newer versions of macOS, this software was replaced with createinstallmedia.
The original idea was to copy the recovery partition to a USB drive. This allowed older Macs, with firmware that was unable to boot to Internet Recovery, to boot from a USB drive and download and install OS X. Eventually, Apple decided to include the installation software on the USB drive. This is where the idea for createinstallmedia came from.