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To create a bootable USB drive from a DMG file on Windows, you will need to have the right utility. That's because DMG is not native on Windows. It is the Mac equivalent of an ISO file that has been in use since Apple transitioned from the IMG format with Mac OS X. A DMG file, like ISO, can be used to install macOS operating system or Mac apps. A Mac machine needs to be reformatted with Lion. I backed up the Lion dmg file when I purchased it via the Mac App Store. I now need to create a bootable USB drive from the DMG file but I need to be able to do it in Windows, preferring open source or at least free options. How can I do this?
MacOS Catalina DMG File; Create Bootable USB Installer For macOS Catalina via TransMac. There are several apps and ways to create bootable USB installer. For this example, we’ll use TransMac. TransMac is a third-party Windows software that copies and manage files and folders on Apple systems, including Mac hard drives, USB flash drives,.
A DMG file is Apple's equivalent of an ISO installation file or disk image. It usually contains all the information required to install a program on a Mac computer running Mac OS X or macOS. It is also a container to hold macOS installation image. If you want to create a bootable macOS bootable disk, the first step is to burn DMG to USB or DVD.
However, native support for DMG files is only available on Apple's desktop operating system. For Windows or Linux, you will need to use different methods. For example, if you want to burn a DMG file to USB on a Mac, it's as easy as using the built-in Disk Utility tool. On Linux and Windows, you obviously have to use other ways. This article explains how to burn a DMG file to a USB flash drive on a Mac, a Windows computer and a machine running Linux.
Method 1: How to Burn DMG to USB on macOS or Mac OS X
If you have a Mac, then Disk Utility will help you create your bootable USB drive. Since this is a native application, no downloads are required. The built-in tool will be able to directly burn the DMG file to a disk or drive. You simply have to follow the process as described below:
Step 1: Open Disk Utility by going to Applications >> Utilities and clicking on the tool.
Step 2: You should be able to see all the drive names in the left-side panel. Now open a Finder window and drag your DMG file into Disk Utility. Drop it in the blank area below the drive names on the left panel.
Step 3: You can now insert your USB drive and wait for it to appear in the drives list. Next, click on your mounted DMG file on the left panel and click on ‘Burn' in the top toolbar. When you see the ‘Burn Disk In:' message, click on the USB drive.
The DMG file will now be burned to the USB drive, and you can use it to do program installations. Disk Utility has a good burn success rate, so hopefully you won't have to repeat the process to get it right.
Method 2: How to Burn DMG to USB in Windows 10 (Bootable)
Since Windows doesn't natively support DMG files, you will need to first download and install a utility that can handle such disk images. The best software for the job is DMG Editor, a Windows-based desktop solution for authoring Apple's disk image files in a non-Mac environment.
DMG Editor requires no technical expertise to use. The clean interface only shows the user the necessary functions, and all the heavy lifting is done at the back end. One of the unique features of this increasingly popular software is the amount of beta testing it has gone through. Extensive and gruelling tests with different storage media brands and Windows versions have made this one of the most reliable DMG utilities for Windows. With one of the industry's highest burn success rates, it's no wonder that DMG Editor is emerging as the leader in its class.
Step 1 Install DMG Editor
Download DMG Editor to your Windows PC and install the program by following the setup instructions in the wizard.
Step 2 Load DMG File into DMG Editor
After launching the program, you'll see various options on the home page. Click on 'Burn' to kick off the process. Now click on 'Browse' to add the file to the program, and insert a USB flash drive.
Step 3 Start Burning DMG to USB
The drive will be automatically detected by the software, so all that's left is to click on 'Burn' and wait for your drive to get ready.
Step 4 Install macOS from USB Drive
When the burning process is completed successfully, you will receive a message like the following screenshot. It means the job is done without any error. Now insert the USB on your Mac and press Power + Option key to open Startup Manager. From there, you can start macOS installation.
You won't be able to find other alternatives that can do the job in such an easy way. For Windows users, DMG Editor is the best tool to create bootable macOS USB or DVD.
Method 3: How to Burn a DMG File to USB in Linux
The process of burning a DMG to USB in Linux is a little more complicated since it requires converting the file to an ISO before burning it to a drive. It also requires command line executions, but if you own a Linux machine you may already be familiar with command line work. Please note that in order for the USB drive to be bootable, the original DMG must have boot information. In here, we take Ubuntu Linux as an example.
Step 1: Download and install dmg2img by using the following command: sudo apt-get install dmg2img
Step 2: Convert the DMG to IMG with the following command: dmg2img sample.dmg
Step 3: Change the filename of the resulting .img file to .iso. Remember, this is still an IMG file, but it will have a .iso extension. Use the command below to do this: mv sample.img sample.iso
Step 4: Insert the USB drive, but make sure it is not mounted. If it is, you can unmount it with the following command: sudo umount /media/
Make sure you know the file path to the mounted USB drive. Although external drives are generally mounted in /media in Linux, it could be in a different location. To check, you can use this command: lsblk
This command reads the sysfs file system and shows you information about block devices. Your drive can usually be identified by the size, but make sure you use the correct disk name, not the partitions within the disk.
Step 5: You can now burn the DMG to the USB drive with the following command:
sudo dd bs=4M if=sample.iso of=/dev/sdX %% sync
If the original DMG file was bootable, then this .img version on your USB will also be bootable. The process looks a bit complicated, but it should work as long as you follow the steps described above.
The Bottom Line:
As we can see, burning DMG to USB on Mac is the easiest solution as you don't need to install any other tools or type command to complete the task, which could be annoying for some users. How about the Mac was broken and you want to create a bootable macOS disk to repair the computer? That depends what kind of computer you get at hand. Just follow the steps listed above according to the computer model.
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For those who don't know, DMG files are mountable disk image files for Mac OS, just like ISO files of Windows OS. DMG files are generally found to be compressed and encrypted. Since it is Mac OS compatible, so it is easier to burn it to USB using a Mac platform. In fact, you can do that with in-built utilities. But when you are about to use it on a Windows system, you would need extra help of either offline third-party tools or online tools to do the job.
In this article, we will show you 5 ways to burn DMG files to USB using both Windows and Mac OS platform.
Part 1. Burn DMG to USB on MAC
This method may vary depending on which Mac OS version you are currently running, but the overall concept is same for all. The in-built disk utility on Mac is ideal for burning DMG to USB. Once the DMG is burnt, the USB drive, now bootable can be used as an installer on any other mac System.
Step 1. Navigate to the following pathway: Application>> Utilities>> Disk Utility.
Step 2. Click on the Disk Utility option to run it.
Step 3. Insert your USB drive and check if it appears on the left side of the Disk Utility operating Window. It means the drive is recognized by the system.
Step 4. Now open a Finder Window and browse to locate your DMG file. Drag the file to the Disk Utility Window.
Create Bootable Usb Mac Dmg File
Step 5. Now specifically select the file by clicking on it, and then click on 'Burn' option from the same Window.
A pop-up will appear, select the USB drive as your destination drive and click 'Burn' again to proceed.The process will take some time depending on the MAC os version you are using. Once done, take out the USB for later use.
Part 2. Convert DMG to ISO First then Burn to USB
In this approach, we will perform the task on Windows platform. To do this, we would first convert the DMG to ISO file format, since this is the file format Windows fully support. Then use any free ISO burners to burn ISO file into your USB drive. You can do this task using certain online converter as well. But we would use command prompt (command line interpreter of Windows OS) to do the job.
Step 1. Make sure you have the DMG file ready in your computer.
How To Make Dmg File Bootable Usb On Mac Mojave
Step 2. Press 'Windows + R' to get the 'Run' dialogue box. Type 'cmd' and hit 'Enter' to get the black command prompt dialogue box.
Step 3. On the black screen of cmd, type the following syntax and hit 'Enter': dmg2img.exe {source file.dmg} {destination file.iso} .
For instance, dmg2img.exe c:Apple.Mac.OSX.v10.7.Lion.dmg c:mac.iso. The processing will take some time. After that, the DMG will be converted to ISO.
Step 4. Finally, you can use any freeware ISO burners, like PowerISO, ISO editor, Free ISO burner to burn the ISO file to your blank USB drive.
Part 3. Burn DMG to USB on Windows using UltraDMG
UltraDMG is a great tool that can seamlessly write DMG file to USB drive with the booting information and make it bootable. It's a fast and effective way to create a macos bootable installation drive. Apart of the DMG burning option, it also provides 'Extract' option which allows you to extract any files and folders from DMG file to computer. In the aspect of software usability , for those users who are not particularly tech-savvy, WonderISO has eliminated the hassle of performing lengthy and confusing steps. This is a third-party tool which can do the job both on Windows and Mac OS. It can not only burn DMG files to USB, but it can burn various other files formats like ISO, RAW, IMG, ZIP, BZ2, etc. It supports multiple disk image burning at the same time, which is quite unusual. Regular software updates are available from time to time. For your queries, professional team for customer support is available.
Step 1. Download the tool for sure from its official website to get the authentic one. Install it with on screen guidelines. Run it by clicking 'Run as administrator' from the right-click sub menu. On the first screen, you will be presented with two options to choose: Burn and Extract. Click on 'Burn' option.
Step 2. In this screen, Insert your USB to any free USB port and wait till the device is recognized.
Step 4. A new Window will pop-up. Here browse to select your DMG file from the computer directory, mention the USB drive to store the burnt image, and finally click 'Burn' option to start the process. The progress can be seen by a progress bar.
When it is done, take out the USB drive and insert your Mac computer. You can boot your Macbook from this USB drive by clicking the option button during bootup and select this USB drive.
Part 4. Burn DMG to USB on Windows using PowerISO
PowerISO is another third party tool which can burn Mac os DMG to USB drive on Windows 10. It can compress, edit, burn DMG files apart from ISO files. You just have to make certain changes to the tool's default settings to bring about the change. Apart of DMG file, it's also a great tool to process ISO image, CD/DVD burning and other process.Make an image and modify the preferences your ISO is prepared to use.
Step 1. Download the tool from any free software distributing sites to the computer which stores the DMG file.
Step 2. Insert your USB drive to any free USB port. From the tool main interface, click on 'Tools', and then 'Burn' option.
Step 3. When a new operating Windows turns up, set the burning speed to a optimum value that your hardware can handle. Click on 'Burn' once more to initiate the burning process.
The third method is recommended if you don't have much experience with command prompts and ISO burners. It is an easier and direct approach. You don't even have to get an additional ISO burner to do the job, since it is in-built. So UUByte DMG Editor appeals to novices or beginners.