Volumes/PCUnlocker) as we need to use it to unmount the disk. How do I make a bootable USB from an ISO file on a Mac This is not the best way to create a bootable drive, especially if the ISO image contains an operating system not recommended for.
#Copying mac iso file how to#
Note down the name of the destination mount point (e.g. How to make a bootable copy of Catalina on USB drive To make a bootable copy of Catalina on a USB drive, make sure it has at least 12 GB of free memory.
You can double-click it to open the drive and view the contents of your ISO image. In macOS, from the menu bar, click the OneDrive icon, click the Help & Settings button, click Preferences in the contextual menu, click the Turn Off Files On-Demand button in the Preferences pane.