create bootable mac os x external hard drive

How to get old macOS installation files.How to get macOS Catalina if you are running Catalina.What you need to create a bootable USB for Mac.Create a boot installer for macOS use the command ‘Terminal createinstallmedia’.Create Bootable macOS USB Installer Using UUByte App.Create Bootable macOS USB Installer Using UUByte App In this way, you will have it on your USB locally.įortunately, doing a bootable installation of the Mac operating system has become much easier over time, especially since Apple released OS X Mavericks in 2013. The reasons why you may want to create this bootable USB may also be to avoid waiting for the installer download every time you want to use it on a different Mac.

It is an easy way to go back to a previous version of macOS. You can also use your bootable USB to install macOS on a separate hard drive volume (or on a partition if you are running an earlier version of Mac OS). If you want to know how to do a boot install of macOS Catalina, macOS Mojave or an earlier version of Mac OS X or macOS, you have come to the right place. Many users choose this alternative of having a bootable disk or emergency bootable if it turns out that your Mac has startup problems and you cannot connect to the Internet or access the recovery mode. In this article we are going to show you step by step how to create a bootable USB, Mac operating system installer, either to install the latest version of macOS on multiple Macs install the latest beta version of macOS, perform a clean install, or repair a disk.

Create a macOS installation disc with createinstallmedia and install macOS on multiple Mac computers, perform a cleaan install, or access a failed Mac that won’t start.

Create bootable mac os x external hard drive