Make A Mac Bootable Usb

  
  1. Mac Bootable Usb On Windows
  2. Make A Mac Bootable Usb On Ubuntu
  3. Making A Mac Bootable Usb Drive In Windows
  4. How To Make A Mac Bootable Usb
  5. How To Make A Mac Bootable Usb Drive

Learning how to create a bootable macOS installation disk can be helpful in a variety of situations. Rather than download and install a new OS from Apple's servers each time, it can be used for multiple installations on different machines. It can also help in situations where the operating system is corrupted or installation from app store shows errors.

To create a bootable macOS installation disk, you have to burn the DMG file to a USB drive as CD/DVD is not available for Mac computers. Here's how to do it from text commands and using a purpose-built software called WizDMG. You will first need to download the DMG file for the macOS version you wish to install. For example, if you want to create a bootable macOS Mojave installer, you will need the DMG file for macOS Mojave. Once the file has been downloaded to your PC, you can proceed with one of the bootable disk creation methods shown below.

Method 1: How to Create Bootable USB Installer for Mac via Commands

Mac bootable usb on windows

If your Mac ran OS X Mountain Lion at any point in the past or if you have previously purchased it, you can download it again from the Mac App Store and create a bootable USB flash drive with it. Here’s how you can download and obtain a soft copy of Mountain Lion.

Dec 16, 2020 4 UniBeast for Mac. UniBeast is an open-source and straightforward application, which you can use to create a bootable USB from an ISO file. That is available through the Mac app store as well. You can think about calling UniBeast a tool that helps you create all in one bootable USB drives. Now your bootable MAC OS installation USB is ready; Like Comment Share. To view or add a comment, sign in To view or add a comment, sign in. More articles by this author.

macOS (formly named Mac OS X) is just a variant of popular Unix based operating system. This means a lot of daily and advanced tasks on Mac can be done via text commands such as creating bootable USB installer for Mac. However, this could be a lot of challenges if you had no clue about commands and I suggest taking a look at the other solutions in this post to avoid messing up the computer with the wrong commands.

Step 1. Search macOS name in app store (Mojave, High Serria, EI Capitai). Click 'Get' button to download the installer image on your Mac. The downloaded file will be located in Application folder.

Step 2. When the download is completed, the installation windows opens automatically, just close the window and go to Application folder. You will find a file started Install, such as Install macOS Majave.

Step 3. Now connect an external flash drive with more than 16G free space. And backup the data in that USB drive as the installer erase all content from it. Open Disk Utility app and format the USB drive with APFS or Mac OS Extended.

Step 4. Open the Terminal app and copy-and-past the following commands to make a booatble USB installer from macOS image:
For Majove: sudo /Applications/Install macOS Mojave.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume
For High Serria: sudo /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume
For EI Capitan: sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X El Capitan.app

Step 5. Input the admin password when being prompted. And wait for the booatable disk being created. When it is done successfully, you will receive a message shown in above screenshot.

Unconfortable with text commadns and prefer doing it in a simple way? The second suggestion is more user friendly!

Method 2: How to Make Bootable USB from macOS with WizDMG

WizDMG fills a huge gap in Windows not supporting DMG files. It is a desktop utility supporting Windows and Mac. It allows you to directly burn DMG files to disk in order to create a bootable macOS Mojave installer or a boot disk for any macOS version.

WizDMG offers an intuitive interface with no clutter and full functionality to handle DMG files. Apart from burning such disk image files to DVD/CD or USB, it also gives you edit options where you can add and remove files from within the DMG file, rename DMG files and even create DMGs from files and folders on your desktop. This software application has been created for novice users as well as experts. It is easy to use, has a very high burn success rate and will help you create a bootable macOS installer in no time. Follow the instructions below:

Step 1Install WizDMG

Download WizDMG from the official website and install it on your PC. Launch the program and select the 'Burn' option in the main interface.

Step 2Create Bootable USB from macOS Install Image

Click on Load DMG to import the macOS installation file into the application. Insert a USB (16G free space) and click on the 'Burn' button next to the appropriate media type.

The important thing to remember here is that you now know how to create a macOS installer in Windows. There aren't a lot of options out there because of the compatibility issues between Mac and Windows environments. That means converting DMG to ISO and back again to DMG leaves the door open for corrupted files and incorrectly burned bootable media, which defeats the whole purpose because it might not even work in the end.

Method 3: Create macOS High Serria/Mojave Bootable USB on Windows 10/7

Another way to create macoS bootable disk on Windows is using a tool called DMG2IMG along with Windows command prompt. It requires a bit of a workaround, but even novice users can learn to burn a DMG file to a disk to create bootable media for a macOS installation. Just make sure you follow the instructions below carefully.

Step 1. Download DMG2IMG and install it in your Windows PC. Open File Explorer and go to the folder containing the DMG2IMG program, then right-click and select 'Open command windows here.'

Step 2. Type the following command and hit Enter: dmg2img [sourcefile.dmg] [destinationfile.iso]

Step 3. Now that the DMG file has been converted to ISO format, you can use the following command to burn it to a disk. Before that, insert a disk into the optical drive: isoburn.exe /Q E: 'C:UsersUsernameDesktopdestinationfile.iso'

Step 4. This command utilizes the Windows native disk image burner to burn the ISO to the disk in your optical drive. The ISO file can't be used directly in macOS, but it can be mounted as a virtual drive. Once you do this, you can convert it back to DMG using Disk Utility in Mac. You can then use this as your bootable macOS installer.

As you can see, this is a bit of a workaround because DMG files aren't natively supported in Windows. Likewise, ISO files aren't fully supported in macOS. However, you can use this method to create a macOS installation disk in Windows. If you want a much simpler solution, then review the next method shown here.

Summary

If you ask us how to create a bootable macOS installation disk, this is the method we recommend. There's no confusing command line work involved, you don't need a bunch of additional software utilities to get the job done, and the high accuracy of the application ensures that you won't be wasting disk after disk trying to burn the installation media for macOS onto a disk. Use WizDMG as a quick and painless way to create a macOS installation disk in a very short time.

Nov 15, 2018 16:47:20. / Posted by Candie Kates to Mac Solution

Related Articles & Tips

If you have serious issues with your PC and can’t fully boot into Windows 10, you must either repair or reinstall the operating system to get things working again. You need a bootable Windows 10 USB stick for that, and using another PC is the best way to create one from scratch.

But what if you only have a Mac at hand? As you may’ve already found out, Microsoft’s Media Creation Tool does not work on macOS.

In that case, the best way to create a Windows 10 bootable USB for Mac is to manually format a flash drive and copy the relevant files into it using the Mac’s Terminal. There’s a storage-related factor at play, so the entire process can end up being somewhat complicated.

What You Need to Create a Bootable Windows 10 USB on Mac

To get started, you must have an ISO image of Windows 10 on your Mac. It’s a file that contains all the stuff that goes into the bootable Windows 10 USB stick that you’re about to create. You can safely download the latest version of Windows 10 by heading over to Microsoft’s Download Windows 10 page using Safari or a third-party web browser.

You must also have a USB stick with at least 8GB of storage space. You will lose all data on the drive, so do be sure to back up any important files inside it before you go ahead.

Additionally, you must install HomeBrew on your Mac. It’s an open-source software package manager that you must then use to add a command line tool called wimlib. But why?

Newer Windows 10 ISO images contain a file called “install.wim” that weighs in at over four gigabytes. The FAT32 storage format—which is the only format that Windows and macOS has in common—has a file size limitation of 4GB. With wimlib, you can get around the limitation by splitting or compressing the “install.wim” file.

Tip: To check the size of the “install.wim” file, mount the ISO image (just double-click it), open the Sources folder on the pop-up window, select install.wim, and press Space.

If you have an older ISO image of Windows 10 (such as Windows 10 version 1903 or earlier), it may have an “install.wim” file under 4GB. In that case, you don’t have to install HomeBrew and wimlib since you can copy the file to the USB stick normally.

However, Microsoft does not make older versions of Windows 10 available for download in ISO format. If you do have a copy lying around, feel free to use it.

How to make a mac bootable usb drive

Give the Boot Camp Assistant a Try First

Before you go ahead, you may want to give the Mac’s Boot Camp Assistant a try first. It comes with an option to create bootable Windows 10 USB drives on a few Mac models, but it usually ends up running into issues while formatting or copying files to the flash drive. It’s still worth a shot, though.

Note: You can’t use Boot Camp Assistant on Mac’s with Apple M1 chipsets.

1. Go to Finder > Applications > Utilities and launch Boot Camp Assistant.

2. Select Continue on the Introduction screen.

3. Check the box next to Create a Windows 10 or later install disk. Then, uncheck the box next to Install Windows 10 or later version and select Continue.

4. Select the Windows 10 ISO image from your Mac’s internal storage and select Continue.

5. Wait until the Boot Camp Assistant finishes creating the bootable Windows 10 USB. Then, unmount the flash drive (right-click and select Eject) from the desktop.

Continue reading and use the Mac’s Terminal instead if you run into any of the problems below:

  • The Create a Windows 10 or later install disk option is missing.
  • You get An error occurred while formatting the disk message.
  • You get a There is not enough space available on the disk message.
  • You can’t use the USB stick to boot into a PC.

Install HomeBrew and wimlib on the Mac

Install HomeBrew and wimlib on your Mac by running the following commands in the Mac’s Terminal. If you plan to use an older Windows 10 ISO file with an “install.wim” file under 4GB, skip ahead to the next section.

1. Go to Finder > Applications and launch Terminal.

2. Copy and paste the following command and press Enter.

/bin/bash -c “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)”

Type in your Mac user password and press Enter again to install HomeBrew. It may take several minutes.

3. Type brew install wimlib and press Enter to install wimlib.

Create a Windows 10 Bootable USB With Terminal

Once you’ve finished installing HomeBrew and wimlib, use the steps that follow to create the bootable Windows 10 USB on your Mac. If you chose not to install them, then use the alternative command in step 7 and skip step 8.

1. Connect the USB stick to your Mac.

2. Open Terminal.

3. Type diskutil list and press Enter to bring up a list of all drives on your Mac.

Mac Bootable Usb On Windows

4. Note down the USB stick’s disk identifier—disk2, disk3, disk4, etc. It should appear to the left of (external, physical).

Make A Mac Bootable Usb On Ubuntu

If you have multiple external drives attached, use the SIZE column to identify the USB stick.

5. Substitute the disk identifier (disk2) at the end of the command below and use it to format the flash drive.

diskutil eraseDisk MS-DOS “WINDOWS10” MBR /dev/disk2

Note: If you run into issues later while setting up Windows 10 on a drive with a GPT (GUID Partition Table) partition scheme, use the following command instead to format the USB stick and go through the rest of the steps again.

diskutil eraseDisk MS-DOS “WINDOWS10” GPT /dev/disk2

6. Mount the ISO from the Downloads folder of your Mac. Make sure to substitute the file name of the ISO image—including its file path—in the command below as needed.

hdiutil mount ~/Downloads/Win10_20H2_v2_English_x64.iso

7. Copy the contents of the ISO image—excluding the “install.wim” file—into the USB stick with the command below.

rsync -vha –exclude=sources/install.wim /Volumes/CCCOMA_X64FRE_EN-US_DV9/* /Volumes/WINDOWS10

If you mounted an ISO image with an “install.wim” file that doesn’t exceed 4GB, use the following command instead to copy all the contents to the flash drive. Also, skip the next step.

rsync -vha /Volumes/CCCOMA_X64FRE_EN-US_DV9/* /Volumes/WINDOWS10

Making A Mac Bootable Usb Drive In Windows

8. Use the following command to split and copy the install.wim file to the USB stick.

wimlib-imagex split /Volumes/CCCOMA_X64FRE_EN-US_DV9/sources/install.wim /Volumes/WINDOWS10/sources/install.swm 3000

Alternatively, you can use the two commands below to compress and copy the install.wim file to the drive. However, this method can take a lot of time (up to an hour) to complete.

How To Make A Mac Bootable Usb

sudo wimlib-imagex optimize install.wim –solid

cp install.wim /Volumes/WINDOWS10/sources/install.wim

9. After Terminal finishes copying all files, unmount the USB from the desktop or use the following command (replace with correct disk identifier) instead.

diskutil unmountDisk /dev/disk2

You can now disconnect the USB drive and use it to boot into your PC. Do remember to change the boot order if you haven’t done that already already. The USB stick should also function as a bootable device on your Mac.

How To Make A Mac Bootable Usb Drive

Boot into Your Computer and Start Repairing

Did you manage to boot into your computer with the USB stick? You probably did. If not, it’s likely that your PC uses the much older BIOS (Basic Input/Output System) instead of UEFI (Unified Extensible Firmware Interface). Your best bet then is to install Windows 10 onto your Mac itself and use Microsoft’s Media Creation Tool or a third-party utility such as Rufus to create a compatible bootable Windows 10 USB stick.