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When a new version of macOS comes out, even in Beta release, tech enthusiast, app developers and tester are always the ones who want to try them out first to see how it works and the differences from previous versions.
Nov 15, 2018 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.
- Sep 10, 2020 Download and install PowerISO in your computer by following the default instructions. Open the software and import the DMG file directly into the software. Click on 'Tools' followed by 'Burn' to write all the data from DMG file into USB flash drive.
- Open Terminal and type (or copy and paste) the following commands, one by one, pressing return after each to run it. Make sure each command finishes—in other words, you see a command prompt.
To have a first-hand experience with latest macOS Monterey (Version 12), you have to make a bootable USB first. It will let you install macOS Monterey Beta on a compatible device. In this tutorial, we will show you how to make a bootable macOS Monterey install USB on a Windows 10 PC and Mac. Please stay tuned!
Table of Contents:
MacOS Monterey Compatible Devices
From what we have learnt, macOS has more strict requirements for hardware. Hence, a handful of devices that are compatible with macOS Big Sur, are no longer supported by macOS 12 Monterey. So before getting started, you have to know what kind of devices macOS Monterey supports. Here is a list of compatible devices:
- MacBook Air (2015 or later)
- MacBook Pro (2015 or later)
- MacBook (2016 or later)
- iMac (2015 or later)
- Mac Mini (2014 or later)
- Mac Pro (2013 or later)
macOS Monterey Download
To make a bootable macOS USB, there are two types of install media you can use. One is macOS install app obtained from Apple software update or App Store. The other is a bootable DMG file.
How to download macOS Monterey install app: As far as we know, there are four ways to get macOS Monterey installation app. The first one is from Mac App Store. However, only stable release is applicable for this way. The second one is via Apple Beta Software Program, which needs an Apple Developer account to get the Mac enrolled. You can also download both stable and beta release from MDS and gibMacOS app.
For the first three methods, please check out our previous tutorial for downloading macOS Monterey Beta. In here, we will focus on gibMacOS, a brand new way to download macOS install media we found recently.
Please click here to download gibMacOS Zip file from GitHub. Now, unzip the file and go into the folder (gibMacOS-master). You will find a file named gibMacOS.command and double click it to open it in Terminal. After that, this command-line utility tries to fetch all stable release of macOS from Apple server. Here is an example:
We can see macOS Monterey is not listed in above because it is in public beta. Please type [c] to change the current catalog. There are four options available: customer, publicrelease, public and developer.
Please type [4] to get developer release of all macOS versions. At this time, you will see macOS Monterey beta 12.0 listed in second position. Type [2] to stat macOS Monterey download. It will download a file called InstallAssistant.pkg for macOS 12 Monterey! The downloaded file will be saved in macOS Downloads folder, the sub folder of gibMacOS-master. Don't forget to copy Install macOS 12 Beta app to Application after download!
How to download macOS Monterey DMG file: macOS install app won't be able to work on Windows PC. To create a macOS bootable USB on Windows 10 PC, you have to use dmg file instead. Please click this link to download macOS Monterey dmg file.
Make Bootable USB for macOS Monterey on Windows 10
There is no built-in app for creating macOS bootable USB on Windows 10. And there are less 3rd-party programs capable of doing this kind of task. UUByte DMG Editor is the most popular one. As you can see from the below steps, it is super easy to make a bootable macOS Monterey USB with this powerful program.
First, download UUByte DMG Editor on a Windows 10 PC and install it on the computer. After that, insert a USB drive into the same computer and make sure it can be seen in Windows Explorer.
Now, open UUByte DMG Editor and you will be present with two options on the welcome screen.
Next, click Browse button to import macOS Monterey DMG file into the program. Then, click Select button to choose the USB flash drive you just plugged in.
Finally, click Burn button to start burning macOS DMG file to USB drive. Usually, you have to wait about 10 minutes before the task is completed.
Create a bootable macOS USB installer with DMG Editor is not difficult, right? In fact, you can also use this app on Mac for the same purpose if you dislike using commands.
Make Bootable USB for macOS Monterey on Mac
You might not be aware that there is a built-in command line utility (createinstallmedia) in macOS for making bootable Mac USB. That means you don't need to install other apps to get this task done. The only problem is that there is no graphics user interface with it. Please be noted!
First, you should connect a USB drive into Mac and format it to Mac OS Extended (Journaled) with Disk Utility app, which is also free software that comes with macOS. In our example, the volume name of USB drive is UNTITLED. This information will be used in later step.
Next, locate the macOS Monterey install app. Usually, it is saved into Application folder.
Now fire up Terminal app on your Mac and input the following command to make a bootable macOS Monterey USB drive:
sudo /Applications/Install macOS 12 Beta.app/Contents/Resources/createinstallmedia --volume /Volumes/UNTITLED
The above step will first erase the USB drive and then making the disk bootable by copying content from Install macOS Monterey app. ou will see a notification when the task is completed. Also, The USB drive was renamed to Install macOS Monterey Beta. However, you have to wait at least 10 minutes before the install media is ready for use!
Start installing macOS Monterey on a Mac
Now, you have a macOS Monterey bootable USB at hand. The next move is to install macOS 12 on a compatible device. Don't worry! This process is straightforward.
Please connect the bootable USB into the target Mac where macOS Monterey will be installed. After that, reboot the Mac and hold Option key for a while. Release the key when you see Startup Manager on the screen. From here, you can pick up a bootable device (Install macOS Monterey Beta) from available drives. And you will see the installation screen. Before proceeding, you need to input the password for current user to grant the permission.
Click the USB drive name and follow the prompt to install macOS Monterey on your Mac. When this task is completed, macOS Monterey will be installed on your Mac.
Conclusion
With new software emerged, making bootable macOS USB on Windows 10 PC is no longer an issue. UUByte DMG Editr is quite effecive for that. For Mac users, the default createinstallmedia command is fairly enough to create macOS bootable USB on Mac. However, you should learn how command works before taking action.
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
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!
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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]
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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.
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Summary
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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.