Create Bootable Installer For Mac Sierra

How to create a bootable installer for macOS Download macOS. Download a macOS installer, such as macOS Mojave or macOS High Sierra. Use the 'createinstallmedia' command in Terminal. Use the bootable installer. After creating the bootable installer, follow these steps to use it.

The macOS Recovery partition means there’s less need to keep a bootable installer on a USB stick or external hard drive. But there are still lots of occasions when one comes in handy. For example, if you want to downgrade to an earlier version of macOS, or you want to temporarily boot into an earlier version of the operating system. And, although the Recovery partition is excellent and works well, having a backup, just in case it doesn’t work, makes a great deal of sense.

There are two ways to make an external installation drive. Opera for mac osx full download. The first is to use Terminal and type in a specific set of instructions. The second, much easier, method is to use software tool to do it for you.

Here, we’re going to show you how to do it using, available in Setapp. Download macOS installer before you start Before you get started, you'll need: • USB flash drive - at least 12GB for Sierra and High Sierra and 8GB for earlier versions of macOS, or a spare external hard drive (one you aren't planning to use for anything else). • macOS High Sierra Installer -. Note: After macOS High Sierra has downloaded, it will automatically launch the installer to begin the installation process. Close the installer instead. If the version of macOS you’ve downloaded is older than the one you’re currently running, you’ll see a message saying that it’s too old to install, click Ok.

The installer file will remain in your Applications folder. • and please, don't forget to before you do anything. If you’ve previously downloaded macOS, it should still be in your Applications folder. How to find old macOS/OS X installer Apple has changed the way it makes previous versions of macOS available. It used to be the case that you could download the most recent version, prior to the current version, from the Mac App Store’s Purchase tab. As of the release of High Sierra, that’s no longer the case. But the good news is you can go directly to the or pages on App Store.

If not, ask a friend or colleague if they have downloaded it and could give you a copy of the.app file. It will work on your Mac. It’s also worth noting that to make a bootable macOS installation of High Sierra, you’ll have to have already upgraded in order to find the download in the Purchased tab in the App Store. Even if you don’t plan to make an install disk of High Sierra right now, it’s worth downloading it – since it won’t be available when the next version of macOS ships and you’ll need it if you want to. The easiest way to create a bootable macOS installer Step 1: Prepare your drive • Plug a suitable USB stick or external hard drive into your Mac.

• Launch Disk Utility, and select the volume you want to use and click the Erase tab. • Give the disk a name and choose Mac OS Extended from the format menu. • Click Erase. Step 2: Create boot drive • Then launch Setapp, search for, and run it. • Once Disk Drill has launched, click on Create boot drive, and then select OS X/macOS installer. • Read the notes on the next window, then click Ok, let’s do it.