- How to create a bootable installer for mac os high sierra how to#
- How to create a bootable installer for mac os high sierra install#
- How to create a bootable installer for mac os high sierra download#
MacOS High Sierra sudo /Applications/Install\ macOS\ High\ Sierra.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume
MacOS Mojave sudo /Applications/Install\ macOS\ Mojave.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume MacOS Catalina sudo /Applications/Install\ macOS\ Catalina.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume MacOS Big Sur sudo /Applications/Install\ macOS\ Big\ Sur.app/Contents/Resources/createinstallmedia -volume /Volumes/MyVolume You should replace it with your USB drive name. Here "MyVolume" means where the macOS installer file will be stored. Copy and paste the command below and press Return.Connect your Mac OS Extended formatted USB drive to your Mac.
How to create a bootable installer for mac os high sierra install#
To install the downloaded macOS onto your USB drive: Or else, it will install on the computer you are using. If the Mac OS installer opens after downloading, you should quit it without continuing installation. During this period, ensure that your monitor is on, the internet is connected well, and the Mac is kept charged. The Mac OS downloading process will take a long time. Or you can click the following quick link to find your target macOS or search for older Mac OS on the Mac App Store website.
How to create a bootable installer for mac os high sierra download#
Ensure the macOS you'll download is compatible with the Mac model that you'll boot. If you use M1 Mac, you should use Thunderbolt 3 drive.Ĥ. If you have modern Macs, you'd better use a USB 3 or USB Type C drive. Once the interface of the USB drive is not suitable with your Mac, it can't be detected or recognized by your Mac.
Identify your Mac ports and make sure the USB drive is suitable. For names with over one word, the input format in the terminal is special.ģ. For later operations easier, you'd better set your drive or volume name with one word. That's because Mac OS Extended has higher compatibility among different OS versions and the OS installer requires such storage space to load.īy the way, to format a USB drive or partition a volume on a USB drive, go to Disk Utility. Prepare a clean USB flash drive or other secondary volume formatted as Mac OS Extended and with at least 32GB of storage (For macOS Big Sur, 64GB is better). A bootable USB drive should be created on a healthy Mac.Ģ. Here are what you should do before creating a bootable USB drive:ġ.
So, you'd better follow this part carefully. The preparations listed below are very important as they decide whether you can create a USB installer successfully or not. If you want to retrieve files from your Mac that won't boot, you can run iBoysoft Data Recovery for Mac in macOS Recovery mode.
How to create a bootable installer for mac os high sierra how to#
How to run iBoysoft Data Recovery in macOS Recovery Mode?