Create a burn file for OS X installer onto a disc.
Create a burn file for OS X installer onto a disc.
Checking if you can burn the OS X installer to a disc is feasible. There are several methods to achieve this, such as using software tools or command-line utilities.
You need USB drives for testing software. You want to create an El Capitan installer from a disc.
It seems unclear why you consistently reference "DVD" instead of "disc." There are sufficiently large discs for the installer to fit on.
Which disk are you referring to? It seems you're confused about purchasing another USB drive, as most Macs released after 2013 no longer include an optical drive.
Locating someone to try this could be challenging. Dual layer DVDs are quite rare these days, and many Macs no longer include DVD drives. You’ll have to test it yourself. The only adjustment needed is changing the volume path in your settings to point to your DVD drive as specified in the link. Alternatively, invest in a budget USB hub or stick—just plug it in and use it. There’s no universal operating system for creating bootable media; you’ll need a Mac to generate a bootable file. Also, note that you can’t rely on OS independence when making one. You’ll also need a tool like dd on Linux or macOS to copy the files.