These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.
A huge chunk of the fun that you’ll find on the web is the ability to download images and other files to your MacBook. If you’ve visited a site that offers files for downloading, typically you just click the Download button or the download file link, and Safari takes care of the rest. Burn ISO to USB Mac Using Terminal. You can make use of the default command line interface on. Mar 12, 2020 Plug the bootable installer into a compatible Mac. Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to macOS Recovery. Learn about selecting a startup disk, including what to do if your Mac doesn't start up from it. Choose your language, if prompted. Mar 06, 2019 Putting The Latest & Greatest MacOS On a USB Stick. I should get the con out of the way first before getting into the pros. While making a MacOS installer is undoubtedly a great time-saver if you have lots of Macs to work on, there is a downside. Dec 17, 2011 Drag those to the USB 'name' in the lower left part (sidebar) under DEVICES. Drop the pictures on the USB identifier. The pictures will be copied to your USB main folder. If you want to copy the pictures to a folder on the USB device, you can open a second Finder window, showing the USB contents. Go to the USB folder where you want the pictures.
Download macOS
Find the appropriate download link in the upgrade instructions for each macOS version:
macOS Catalina, macOS Mojave, ormacOS High Sierra
Installers for each of these macOS versions download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation. Important: To get the correct installer, download from a Mac that is using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server. Open Usb On Mac
OS X El Capitan
El Capitan downloads as a disk image. On a Mac that is compatible with El Capitan, open the disk image and run the installer within, named InstallMacOSX.pkg. It installs an app named Install OS X El Capitan into your Applications folder. You will create the bootable installer from this app, not from the disk image or .pkg installer. Use the 'createinstallmedia' command in Terminal
* If your Mac is using macOS Sierra or earlier, include the
--applicationpath argument, similar to the way this argument is used in the command for El Capitan.
Use the bootable installer
After creating the bootable installer, follow these steps to use it:
Learn more
For more information about the
createinstallmedia command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal:
Catalina:
Mojave:
High Sierra:
Transferring Files Onto A USB Flash Drive
El Capitan:
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