Apple delivers the macOS installer and applications through the app store since the launch of OS X Lion. The macOS installer has a .app extension when you get it through the official channel. Unlike the macOS DMG installer, which Apple doesn’t provide nowadays, the app version of the macOS install package is not bootable. Hence it is not mountable nor compatible with operating systems like Windows. For some reason, if you want macOS in .DMG or .ISO format, there is a method to convert the .app file. Unfortunately you need a macOS system to convert .app to .dmg to .iso image.
Sep 12, 2019 Mac Operating Systems use DMG file as the disk image format. If you see a DMG file, which means it was specifically built for Mac Operating Systems. If you need to open and see the content or use that as an installation medium on Windows OS, then this guide will be useful to convert the DMG to ISO for free on Windows 10 computer. If you have a DMG file and want to convert the same to ISO on a computer running Windows operating system, there are plenty of ways to do it. In this guide, we will discuss the methods that you can use to convert DMG to ISO on Windows PC. Convert DMG file to ISO using DMG2IMG (free). Convert macOS Mojave and High Sierra Installer.app to.dmg or.iso. Converting macOS installer into DMG or ISO format allows you to make a bootable USB pen drive or DVD from Windows.
Reasons for converting macOS Mojave or High Sierra .app to .DMG or .ISO
- The macOS in DMG format let to quickly create Install DVDs and bootable USB installers in a few minutes.
- When you convert macOS Install .app to ISO format, you may use it for running macOS on Windows PCs (Hackintosh).
- You can use the DMG file made from the macOS Install app for creating a boot-friendly macOS USB on Windows PC.
Above all, DMG and ISO files are highly portable; it is easy for anyone to upload and transfer them through the Internet.
Convert macOS Installer .APP to .DMG bootable image
The requirement for running macOS, and a USB Pen Drive for converting the Installer application to bootable ISO or DMG image. The step by step process for converting macOS Mojave, High Sierra, Sierra, EI Capitan to the bootable .DMG or .ISO is explained below.
- First of all, download the full Mac OS installer, and save it in the Applications folder.
- Next step is to create a bootable USB installer from macOSÂ Install app. I prefer using the macOS Terminal app to create the bootable USB Installer using commands in the screenshots.
- Now, copy the contents of the macOS USB to a new folder and give it a single word name. We are going to make DMG file on Mac from the newly created folder.
- Then open the Disk Utility app and then take the “File” menu from the top left corner. Then New Image and Image from folder, and direct the Finder to the macOS file folder.
- Choose the image format as Hybrid (HFS+/ISO/UDF).
- The system now starts converting the macOS installer .app bootable .DMG file.
The output is a boot-friendly DMG image which you could restore to a USB or DVD drive from Windows or macOS. It is also possible to burn this DMG file to a DVD or USB Pen Drive from Windows PCs using software like Transmac.
Just in case you find any difficulty, check our video on converting macOS .app to bootable .dmg.
Dmg To Iso Mac
How to convert macOS installer to iso format
There are several ways to convert macOS .app to .ISO bootable image. Usually one need to do APP to DMG or CDR conversion before making it an ISO file on Mac. The Disk Utility app in macOS previously had an option that allows you to convert DMG to ISO/CDR. You can use Terminal and third-party apps to convert Mac OS installer to ISO if it is in CDR format.
AnyToISO app capable of converting macOS DMG to iso format. The free version of AnyToISO doesn’t support converting dmg files above 850 MB. Hence, you need to either purchase or download (Search AnyToISO Pro 3.9.0 in Google) the PRO version of this app.
In my experience, converting DMG to ISO with AnytoISO takes a lot of space and resources if you’re on macOS machine. The system shows out of space notification even though you have enough space left in the disk. Therefore, it is better to transfer the DMG files to a Windows machine and use freeware like DMGtoISO or AnyBurn for converting. Check our page on burning DMG on windows for freeware tools supporting DMG to ISO conversion.
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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.
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'
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
sudo apt-get update
sudo apt-get install dmg2img
Step 2. You can now proceed with the conversion command: dmg2img example.dmg example.iso
Dmg To Iso Converter Freeware
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.
Nov 16, 2018 17:06:31 / Posted by Candie Kates to Mac Solution