However, Mac users can create an external recovery drive (bootable installer) using the createinstallmedia command in Terminal.
This is the golden rule. You cannot create a recovery drive for a computer that refuses to turn on. It must be created while the system is healthy. what does recovery drive do
The Recovery Drive is the "emergency room" of the digital world. It is a sterile, minimal environment designed not for productivity, but for surgery. However, Mac users can create an external recovery