You can easily burn ISO to DVD in macOS Catalina using the Terminal app. In this example, I need to create a Ubuntu 19.10 DVD to use as a bootable installer. After downloading the ISO from Ubuntu’s site I simply enter the following command in terminal.
hdiutil burn ubuntu-19.10-desktop-amd64.iso
Note: Your version may change, so I typically just type “hdiutil burn” and then drag the ISO file into the Terminal window and then hit Return. That will kick off the process to create your install media. This works for any ISO file so long as it isn’t too large for your DVD. In the case of this particular Ubuntu installer, its about 2.47 GB.
The output displayed in Terminal should resemble the following during the burn process.
Please insert a disc:Preparing data for burnOpening sessionOpening trackWriting track........................................................................................................Closing track........................................................................................................Closing session........................................................................................................Finishing burnVerifying burn…Verifying........................................................................................................Burn completed successfully........................................................................................................hdiutil: burn: completed
Once the DVD has been burned, the disk should eject and be ready for use. As you can see in the pic below, the disk worked perfectly to boot from and install Ubuntu.
Though this doesn’t come up as often these days, it’s still pretty handy to know. Hopefully, this post will be useful to someone else too.
