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#Make a boot disk for mac how to
#Make a boot disk for mac for mac
#Make a boot disk for mac mac os x
#Make a boot disk for mac install

Below we'll look at how to get Catalina installers as well as how to get older versions of the macOS or even Mac OS X.

How to get macOS installer filesĪs we said already, how you get the installation files will depend on the version of macOS you are running currently and the version you want the installer for. It goes without saying that you will need an internet connection to download the software and you may need it while installing the version of macOS if it needs to check for firmware or confirm your iCloud credentials. The Mac App Store is probably the easier option, but there can still be difficulties depending on which version of macOS your machine is running, and if you were hoping to grab older installation files that can be tricky - we have another article discussing how to get older versions of macOS. The installation filesĭepending on which version of macOS you are running, and the version you want to to install, you will either be able to get the installation files from Software Update in System Preferences, the Mac App Store, or you will have to obtain them from elsewhere. Note: If you have data on the drive that you plan to use you will need to transfer it to another drive, or get a new drive, as it will be completely formatted and erased. If you have an M1 Mac you might actally be better off with a Thunderbolt drive because there have been some issues with using USB drives with the M1 Mac.

You'll also benefit from USB 3, or USB Type C - this may be your only choice if you have a newer Mac. We recommend a Flash memory stick, rather than a standard hard drvie, as it will be quicker. We recommend a 15GB (or more) drive - in fact more would be advisable: the installer for Big Sur was 13GB (and the actual installation takes up at least 35.5GB storage, so you'll need to allow for that on your Mac). Once you have those two things the process shouldn't take very long.

#Make a boot disk for mac install

There are two main things you'll need to make your bootable install drive: a USB stick (or a Thunderbolt drive) and the installation files.

#Make a boot disk for mac for mac

What you need to make a bootable USB for Mac If you want to run macOS on an external drive, which is slightly different, we have a separate article.

Choose the correct createinstallmedia command.

We will run through the following steps to create a bootable USB for Mac: With that version of Mac OS X, and all versions since, it's been possible to use the Terminal command createinstallmedia to create a bootable installer of the macOS, in this article we'll show you how. Luckily, making a bootable installation of the Mac operating system became a whole lot easier when Apple launched OS X Mavericks back in 2013. It's also a hassle-free way to go back to an older version of macOS and a great option if you found downloading the installer took a long time and you don't fancy spending the next few days downloading it multiple times on multiple Macs. You can also use your bootable installer to install the macOS on a separate volume of your hard drive (or on a partition if you are running an older version of the Mac OS).

#Make a boot disk for mac mac os x

If you want to find out how to make a bootable install of macOS Big Sur, Catalina, Mojave, or an older version of Mac OS X or macOS, you've come to the right place. In this article we'll run through the steps necessary to create a bootable installer of the Mac operating system, whether it's so you can install the latest version of the macOS on multiple Macs, install the latest macOS beta, perform a clean install of the macOS, or just to be prepared with an emergency disk if your Mac experiences problems and you don't want to connect to the internet or in Recovery mode (or you can't access Recovery mode).