If you want to convert DMG to ISO, it's good to learn a little about disk image file types and what they're meant for. Essentially, a disk image is a snapshot of the content on a DVD, CD, BRD or even a hard drive. It could be just a set of media files, but it can also contain software installation files. In the second case, the disk image will also need to contain boot information in order to boot from the media.
Specifically, DMG is what Apple uses for the macOS environment, while ISO is more widely used in Windows-based and Linux environment. At times, you may need to convert DMG to ISO so you can mount it as a virtual drive on a Windows machine to extract the contents, view them or burn them to create bootable media. The process to convert DMG to ISO is different based on which operating system you're using for the conversion. This article shows you how to convert DMG files to ISO files on Windows, Mac and Linux.
Nov 16, 2018 Method 2: How to Convert DMG to ISO on macOS (Disk Utility) Mac OS X and macOS offer an easier way to convert DMG to ISO, which is only natural because DMG is the native disk image format used by Apple. The Disk Utility that's built into Mac will help you do the conversion from DMG to ISO. Follow the steps below to convert your disk image files. Feb 09, 2017 If you have ever wanted to turn a DMG file into an ISO file, look no further than the handy command line utility called hdiutil, which is bundled in all versions of OS X. This can be helpful for. Sep 27, 2009 When using your Mac you have so much at your fingertips that it really makes you wonder how you ever used Windows. Maybe you didn’t use Windows! But most of us have at one time or another. This very short article give you two different ways to convert an ISO file to a DMG file using your Mac, OS X and no additional software to download.
Method 1: How to Convert DMG to ISO on Windows 10 (DMG2IMG)
DMG2IMG is a software utility that converts DMG files into Apple's older IMG format as well as the universally used ISO format. The process is simple, but it requires some command line work. The steps to use DMG2IMG to convert DMG to ISO have been detailed below:
Step 1. Download and install DMG2IMG on your Windows computer. Once the installation is done, open File Explorer and go to the location where you downloaded the application.
Step 2. Right-click on the folder where the software has been downloaded, and select 'Open command window here…' to launch Command Prompt.
Step 3. In Command Prompt, execute the following command (click Enter after typing in the command):
dmg2img 'C:UsersSample UserDesktopsample.dmg' 'C:UsersSample UserDocumentsConvertedRandom.iso'
Step 4. Please note that the double-quotes are required only if you have a space in your file path. In this example, there's a space between Sample and User, so the quotes are needed. If there are no spaces, you can do away with the quotes.
This method only works in 32-bit Windows versions. The conversion is usually done accurately, but you may come across errors that can corrupt the output ISO file. If you're going to be doing a lot of such conversions from DMG to ISO, we recommend getting a proper software utility.
Method 2: How to Convert DMG to ISO on macOS (Disk Utility)
Mac OS X and macOS offer an easier way to convert DMG to ISO, which is only natural because DMG is the native disk image format used by Apple. The Disk Utility that's built into Mac will help you do the conversion from DMG to ISO. Follow the steps below to convert your disk image files:
Step 1. Launch Disk Utility in Mac from Applications > Utilities.
Step 2. Open a Finder window and double-click on the DMG file to mount it. You should be able to see it on the left panel in Disk Utility.
Step 3. Right-click the DMG file in the left panel and select 'Convert'. In the new window that appears, select 'DVD/CD Master' as your output and click on Save. This will save your DMG file in a format with the extension .cdr.
Step 4. Rename the file by replacing .cdr with .iso. The file is now in the ISO format.
The exported ISO file can now be burned to a disk, or mounted within Mac as a virtual drive so you can view or extract the contents. The conversion process is quick, and it's convenient because it does not require any additional software.
Method 3: How to Convert DMG Files to ISO on Linux
In a Linux machine, you can use Terminal to convert DMG to ISO. For this, you will first need the Linux version of DMG2IMG. You can get it using a Terminal command, as shown below:
Step 1. Execute the following command in Terminal:
sudo apt-get update
sudo apt-get install dmg2img
Step 2. You can now proceed with the conversion command: dmg2img example.dmg example.iso
Step 3. You can also define a specific file path for the output (converted) file, but this basic command is what you need to use for the conversion.
As with any file conversion, the process to convert DMG to ISO could present some hurdles, such as corrupted files at output. If you see this happening multiple times, it's possible that the source file itself is corrupted. In such cases, it's better to try and get an authentic download rather than struggle with a corrupt file. In any case, if you're sure the DMG file is verified, these methods to convert DMG to ISO in Windows, macOS and Linux should work for you.
Related Articles & Tips
The ISO file format is pretty much entranched in the PC world as THE format to use for CD/DVD disk images. The advantages of this format are plenty – It is a standard open format and tools to work with it are readily available for all operating systems, Windows, Unix/Linux and OS X.
While Mac users can use the ISO format on their machines, Most software on OS X is distributed as a DMG file. The DMG file format has a couple of arguable advantages over the ISO format like encryption, compression etc., but the truth is that the rest of the world uses ISO and there is no way easy way to use DMG files in the PC world.
I faced this dilemma at work a couple of days back when I had a DMG file in my hand and had to burn it to a DVD but I was using a Linux machine.
I tried searching online for solution to burn a DMG on Windows but couldn’t find any free utility. So, I searched for the next logical solution. Convert the DMG to ISO and I found a way to do it – and the good thing is that the tool to be used for the conversion comes with Mac OS X and is a simple command line utility.
This method only works on a Mac, so you have to convert the DMG file to an ISO on the Mac itself and then transfer and use the resulting ISO on your PC. The utility to be used for the purpose is hdiutil and the complete command is:
Below is the screenshot of the command that I used to convert my DMG file to ISO.
The above command will create a file with a .cdr extension, which stands for a CD/DVD master. If you want, you can rename it with a .ISO extension and it should still work fine. Copy it over to your Windows or Linux/Unix machine and you’re all set.
Convert Dmg To Iso Mac
You can now use Nero, cdrecord/wodim or the OS’s built in ISO burning tools to burn this ISO file to any media.