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.
Nov 18, 2019 For example, say a DMG file isn't just storing compressed files like images and videos but is instead holding a software program. You can extract/open the DMG file in Windows using one of the programs mentioned below, but you can't actually execute the program and use it like you would another Windows application. The best way to do this as an automatic build step is to create a template.dmg that looks exactly how you want (using finder/diskutility etc but not doing the last step of compressing it), then in your build script: Use hdiutil to attach the image. Use cp etc to copy the application into the.
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.
How To Make Dmg File From App
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.
Should I Keep Dmg Files
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
DMG file format is one of the most well-known container format to distribute and compress software on Mac operating system. You can compare DMG files with ISO files in Windows computers. The only difference is DMG is compatible with Mac computers and ISO is compatible with Windows computers.
It is the most popular file format to install Mac or Windows operating system these days. However, if you try to run DMG files on Windows, it will not be compatible and no application in Windows can run it. Nevertheless, if you convert the DMG file to ISO file format then you can easily extract all the files from that ISO image on Windows computers.
Reasons to Convert DMG to ISO:
DMG is not compatible with Windows operating system.
Any Windows operating system can extract files from ISO image.
Install operating systems or software on DMG files in Windows computers.
ISO files gives more options to operate with in Windows systems.
In this tutorial, we will show you two efficient ways to convert DMG to ISO image files so that you can run them in Windows operating system.
Method: Convert DMG to ISO with Command Prompt
In this method, we will be combining dmd2img tool with command prompt app to convert DMG to ISO file format. It is a bit complicated but if you follow the below instructions correctly then you will surely be able to accomplish this.
Step 1. Launch your favorite browser and open http://vu1tur.eu.org/tools/
Step 2. Download the dmg2img tool by clicking on “win32 binary” link.
Step 3. After downloading the zipped file, right click on it and choose “Extract All…” from the given options.
Step 4. Now, press Shift and make a right click together on the folder where you have extracted the files to open the command prompt window.
Step 5. Click dmg2img.exe file and type the following command line on the command prompt window and press Enter.
dmg2img <source file.dmg> <destination file.iso>
Make Dmg File Bootable
For example, if want to convert a DMG file named as abcdef.dmg then type the following command line
dmg2img “C:UsersAdministratorDesktopabcde.dmg”
“C:UsersAdministratorDocumentsconvertabcde.iso”
Step 6. After you have hit enter, the file will be converter in no time.
Step 7. You may now burn the ISO image on your Windows operating system without any issue.
Conclusion –
How To Make Dmg File From Application Online
Converting DMG to ISO could be challenging if you don’t know how to do it properly. However, in this guide we have shown two amazing ways to accomplish this without damaging the original DMG file. Remember, if you are using Mac then DMG file is enough to install apps and operating systems, but in Windows systems, you will have to convert the DMG to ISO in order to make it usable. It is suggested that you download and copy the DMG file on your Windows computer first then perform the above methods to convert it.