Boot With Usb Mac

  
  1. Boot With Usb Mac Os
  2. Boot Usb Mac Os Catalina
  3. Boot Usb Mac Os Sierra

1-16 of 216 results for 'mac os x bootable usb' USB for mac OS X El Capitan 10.11.6 USB Flash Drive for Full OS Install Recover Repair Restore Upgrade Reinstall Reboot System USB Stick 16GB, Blue 2.8 out of 5 stars 2. USB 3.0 or about is preferred as it will be much faster for file copying. Now, it is time to see how to create a Windows 11 bootable USB on Mac with different tools. Method 1: Create Windows 11 Bootable on Mac in Terminal. Method 2: Make Windows 11 Bootable on Mac via Boot Camp App. Method 3: Create Windows 11 Bootable on Mac with ISO Editor.

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.

What you need to create a bootable installer

  • A USB flash drive or other secondary volume formatted as Mac OS Extended, with at least 14GB of available storage
  • A downloaded installer for macOS Big Sur, Catalina, Mojave, High Sierra, or El Capitan

Boot With Usb Mac Os

Download macOS

  • Download: macOS Big Sur, macOS Catalina, macOS Mojave, or macOS High Sierra
    These download to your Applications folder as an app named Install macOS [version name]. If the installer opens after downloading, quit it without continuing installation. 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.
  • Download: OS X El Capitan
    This downloads as a disk image named InstallMacOSX.dmg. 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

  1. Connect the USB flash drive or other volume that you're using for the bootable installer.
  2. Open Terminal, which is in the Utilities folder of your Applications folder.
  3. Type or paste one of the following commands in Terminal. These assume that the installer is 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.

Big Sur:*

Catalina:*

Mojave:*

High Sierra:*

El Capitan:

* If your Mac is using macOS Sierra or earlier, include the --applicationpath argument and installer path, similar to the way this is done in the command for El Capitan.


After typing the command:

  1. Press Return to enter the command.
  2. When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
  3. When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the volume is erased.
  4. After the volume is erased, you may see an alert that Terminal would like to access files on a removable volume. Click OK to allow the copy to proceed.
  5. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Big Sur. You can now quit Terminal and eject the volume.

Use the bootable installer

Determine whether you're using a Mac with Apple silicon, then follow the appropriate steps:

Apple silicon

  1. Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
  2. Turn on your Mac and continue to hold the power button until you see the startup options window, which shows your bootable volumes.
  3. Select the volume containing the bootable installer, then click Continue.
  4. When the macOS installer opens, follow the onscreen instructions.

Intel processor

  1. Plug the bootable installer into a Mac that is connected to the internet and compatible with the version of macOS you're installing.
  2. Press and hold the Option (Alt) ⌥ key immediately after turning on or restarting your Mac.
  3. Release the Option key when you see a dark screen showing your bootable volumes.
  4. Select the volume containing the bootable installer. Then click the up arrow or press Return.
    If you can't start up from the bootable installer, make sure that the External Boot setting in Startup Security Utility is set to allow booting from external media.
  5. Choose your language, if prompted.
  6. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.
With

Learn more

A bootable installer doesn't download macOS from the internet, but it does require an internet connection to get firmware and other information specific to the Mac model.

For information about the createinstallmedia command and the arguments you can use with it, make sure that the macOS installer is in your Applications folder, then enter the appropriate path in Terminal:

To troubleshoot an issue with Windows 10 (especially boot-related issues), it can be handy to boot into Windows 10 not installed on a Boot Camp partition. It is relatively straightforward to create a bootable USB Flash drive to boot to the Windows 10 installer and open up a DOS prompt for troubleshooting.

What is needed

  1. USB Flash drive (8 GB or larger recommended)
  2. Windows 10 Installer ISO for Windows 10

Preparation

All the preparation is done in macOS on the Mac that is having an issue booting Windows. It is important to use this Mac since it will be used to identify the correct Windows drivers.

USB Flash Drive

The USB Flash drive must be formatted as exFAT.

  1. Insert an 8GB or larger flash drive into a USB port on the Mac
  2. In Disk Utility, format the Flash drive as exFAT. Quit Disk Utility after this operation completes.

Boot Camp Driver

Open Boot Camp Assistant in the Utilities folder and download the current Windows Support Software from the “Action” dropdown in the menu bar. Save the Windows Support Software to your desktop or other location. Do not save directly to the USB Flash Drive.

Windows Install Media

Download the current install media from the Microsoft website. Windows will not be installed, but the install media will give access to the command line tools in Windows. Select the version of Windows that is closest to the version of Windows installed on the Mac (Windows 8, Windows 10). It does not matter what edition of Windows is used, since Windows is not going to be installed.

Create Recovery USB Flash Drive

To create the USB Flash drive, follow these steps:

  1. Mount the Windows ISO downloaded from Microsoft. To mount the ISO, double-click on the ISO in Finder.
  2. Drag all the files and folders from the mounted ISO to the USB flash drive.
  3. Drag the contents of the Windows Support Software to the USB flash drive.
  4. If there is not an AutoUnattend.xml at the top level of the drive (as shown below), download AutoUnattend.xml, unzip it, and add it to the drive. AutoUnattend.xml provides the location of the $WinPEDriver$ folder to load the drivers during boot.
  5. The 2018 MacBook Air (and potentially Macs after that) cannot load the IntelMEI driver and give a “Windows Setup could not install one or more boot-critical drivers. To install Windows, make sure that the drivers are valid, and restart the installation” message. On the USB flash drive, open the $WinPEDriver$ and remove the IntelMEI folder.

Once the flash drive has been created, it should look like this:

Boot

The $WinPEDriver$ folder is important because it contains the drivers for Windows to boot successfully from the USB flash drive and the hardware on that Mac.

Boot from the USB Flash drive

To inject the drivers, the Mac must be booted from the USB flash drive.

  1. Insert the USB flash drive into an available USB port on the Mac
  2. Reboot while holding the Option key.
  3. Select EFI volume in the startup selector.

If Windows does not boot from the USB flash drive after showing the Windows logo, you may have to run the following command to tell the firmware to boot the Windows installer from the USB flash drive. This has been observed on the late-2014 Mac Mini but may affect other models as well. To set the variable:

  1. Disable SIP by booting to the recovery partition.
  2. Boot back to macOS and open Terminal. Run the following command and enter the admin password when prompted:

sudo nvram InstallWindowsUEFI=1

Boot Usb Mac Os Catalina

Insert the USB flash drive if it is not inserted, reboot, and select the EFI volume from the startup selector.

Note: the InstallWindowsUEFI variable is cleared at each reboot, so you will need to set it again if you do not select the USB Flash Drive.

Command Prompt and Mapped Drives

When Windows 10 starts up, it will prompt for installation of Windows 10. To open a DOS window, press fn-Shift-F10 (or just shift-F10) or click Repair Computer->Troubleshoot->Command Prompt (if available).

Once in the command prompt, there are usually 3 drive letters available: X, C, and D.

  • X: This is Windows that you are booted into in memory. The files from the boot.wim on the flash drive are copied to memory and then booted to
  • C: Boot Camp partition
  • D: The USB Flash drive

Running Utilities

Within the Windows command prompt, you can run utilities on the Boot Camp partition.

Boot Usb Mac Os Sierra

Video