Make bootable usb flash drive mac os x

Use the 'createinstallmedia' command in Terminal Connect the USB flash drive or other volume you're using for the bootable installer. Open Terminal, which is in the Utilities folder of your Applications folder.


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  • How to Create a Bootable USB Drive for macOS Sierra.
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Type or paste one of the following commands in Terminal. When prompted, type your administrator password and press Return again.

How to Make a Bootable MacOS Mojave Installer Drive

Terminal doesn't show any characters as you type your password. Terminal shows the progress as the bootable installer is created. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Mojave. You can now quit Terminal and eject the volume. Use the bootable installer After creating the bootable installer , follow these steps to use it. Connect the bootable installer to a compatible Mac.

macOS Catalina USB installer video tutorial

Choose your language, if prompted. A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. September 3, at am. Ed says:. July 30, at pm. July 31, at am. Peter Campbell says:. July 25, at am. Paul says:.

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You'll just need one USB flash drive to install Catalina on a bunch of Macs.

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