Here's a guide which will help you burn disk images like .iso, .dmg, etc in your Mac OS X even without any disk utility installed.
Note: This is not necessary in older versions of OS X, which allowed burning ISO files from Disk Utility. This is exclusively for OS X El Capitan and later, where the feature no longer exists.
How to Burn Disc Images (ISO, DMG, etc) in OS X Capitan Without Using Any Disk Utility
The ability to burn data and disk images has long existed in the Finder of OS X, but now burning images is missing from Disk Utility, it’s one of the primary methods of burning a disk in OS X 10.11 and later:
1. From the OS X Finder, select a disk image file
2. Pull down the “File” menu and choose “Burn Disk Image (Name) to Disc…”
3. Insert a blank DVD, CD, or CDRW disc into the drive, then click on the “Burn” button
You can also access the “Burn Disk Image to Disc” option by right-clicking on an image file.
This works to burn disk images and just data in general, OS X Is smart enough to know what to do with a DMG and an ISO, and yes you can boo
Burning Disc Images & ISO Files in OS X EL Capitan from the Command Line
Users can also turn to the command line to burn a disk image or iso file. The syntax is rather simple but being the command line things must be precise to avoid failure or unintended consequences, thus this is best for advanced Mac users. Here’s what to do to burn an iso from OS X El Capitan with hdiutil in the Terminal application:
1. Place the ISO somewhere easy to locate like the desktop or user home folder
2. Insert a blank DVD or CD into the Mac
3. Launch the Terminal and type the following command:
hdiutil burn ~/Path/To/DiskImageFile.iso
hdiutil will start burning the disk image file immediately assuming the syntax to the iso or dmg file is correct, and a CD/DVD drive with write abilities is found. The hdiutil command is quite powerful and it can create iso images as well as convert them, making it a valuable tool for users who don’t mind the Terminal.
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