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.
UPDATE 09/2017: Create a Bootable macOS High Sierra Install Drive with DiskMaker X 7 Update 09/2015: For help creating a bootable USB install drive for OS X El Capitan, click here. Apple released the latest and greatest Mac operating system last month in. . The software has 8 main functions, including Data Disc burn, ISO to DVD, Video editor, Slideshow Maker, DVD to Video Converter and more. Moreover, the software is compatible with both Windows and Mac Operating System. Guide to Burn ISO Files to DVD by Using the Wondershare DVD Creator Step 1.
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.
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.
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.
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
- Connect the USB flash drive or other volume that you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.
- Open Terminal, which is in the Utilities folder of your Applications folder.
- Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace
MyVolume
in these commands with the name of your volume.
Catalina:*
Mojave:*
High Sierra:*
El Capitan: - Press Return after typing the command.
- When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
- When prompted, type
Y
to confirm that you want to erase the volume, then press Return. 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 Catalina. You can now quit Terminal and eject the volume.
* 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:
- 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.
- 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. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar.
- Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.
Learn more
Disk Maker For Mac
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:Disk Image Maker For Mac
Catalina:
Mojave:
High Sierra:
El Capitan:
![Maker Maker](/uploads/1/1/8/3/118385821/420125376.jpg)
DiskMaker X is a practical tool developed with AppleScript that lets you copy an install file for the OS X Yosemite operating system to a USB drive so you can turn it into a boot disk during startup.
To make the copy, you just have to install the DiskMaker X application on your computer, download a copy of Yosemite, and follow the assistant's steps to set it up. You must have a USB drive with at least 8 gigabytes of space and free of important files since the memory will have to be completely reformatted to make a copy of the operating system.
If all goes well, after a few minutes, you'll have a Yosemite installer on the USB drive that you can then use to install a clean copy of the operating system on your Mac. Its own developers describe it as the easiest way to create a boot disk for OS X.
What's more, this tool is not only useful for Yosemite but also supports the Mavericks and Mountain Lion installers as well.
NotesTo make the copy, you just have to install the DiskMaker X application on your computer, download a copy of Yosemite, and follow the assistant's steps to set it up. You must have a USB drive with at least 8 gigabytes of space and free of important files since the memory will have to be completely reformatted to make a copy of the operating system.
If all goes well, after a few minutes, you'll have a Yosemite installer on the USB drive that you can then use to install a clean copy of the operating system on your Mac. Its own developers describe it as the easiest way to create a boot disk for OS X.
What's more, this tool is not only useful for Yosemite but also supports the Mavericks and Mountain Lion installers as well.
![Maker Maker](/uploads/1/1/8/3/118385821/598539744.jpeg)
Mac OS X 10.6x or higher is required to run this application.