Creating Installer For Mac


Install or upgrade Ubuntu, even on a Mac. Creating a bootable USB stick is very simple, especially if you’re going to use the USB stick with a generic Windows or Linux PC. We’re going to cover the process in the next few steps. Apple hardware considerations. Connect your drive to your Mac. Launch Install Disk Creator. In the main window, you’ll see a pop-up menu under Select the volume to become the installer. Click on the menu and select.

In this post, I’ll show how to Create macOS Catalina Bootable USB Installer via TransMac. With the macOS Catalina out, more and more users are heading towards it and installing it on different operating systems. Some of the examples are install macOS Catalina on VMware on Windows, install macOS Catalina on VirtualBox. There are two other different new methods. That is install macOS Catalina on VMware [New Method], install macOS Catalina on VirtualBox [New Method]. These are some of the most popular and also common examples of installing macOS Catalina on Windows. Apart from it, there are many installations and users could install on different places and different platforms. Here’s are three different ways we’ve provided to do.

Now for installing macOS whatever the version, we’ll need the installer files. While the macOS Catalina DMG file is easy to obtain from the App Store, it’s pretty easy to do it from a Mac but what happens when your Mac is not working or have some problem with its operating system. Instead, you’ve Windows in approach and would like to create macOS Catalina Bootable USB Installer completely on Windows. Or as the macOS Catalina is out, chances are you’ve lots of Mac and would like to create macOS Catalina bootable USB installer on Windows.

For installing most systems like Windows 10 and others, creating a bootable USB installer is the first step and also the most important step. Now creating a bootable USB isn’t as easy as it looks like and in some cases, I’ve lost many USBs in the procedure. The process requires some files specifically the operating system installer file and other differs for the process like if you’re creating a bootable USB for Mac, it’s a little easy, but if you’re creating a bootable USB installer for Hackintosh, it’s a bit trickier and requires some additional files but can be definitely done.

  • Related:How to Create macOS Catalina USB Installer – Hackintosh

Creating a bootable USB installer can be done in different ways. Just like we’ve previously shown a few ways to create macOS Catalina USB installer which would work probably for Mac and Hackintosh even. First, we created manually via Disk Utility and Terminal and also we provided the supporting files and the next method which we did was with Disk Utility, Terminal and also Clover. These were the two methods we did to create bootable USB installer for macOS Catalina.

For those who aren’t familiar with, Hackintosh is a simply process of installing macOS on a non Apple hardware which can be Windows. While we’ve already done some instructions for creating a bootable USB installer for Mac and Hackintosh, but for some reasons, it isn’t working for users, that’s why we’ve come up with a new post which is how to Create Bootable USB installer for macOS Catalina via TransMac. This process works for both creating bootable USB installer for macOS Catalina for Hackintosh and also for Mac.

With those in mind, whoever would like to install macOS Catalina or other version on Mac or install macOS Catalina or other version on Windows, we’ve prepared complete instructions to create a bootable USB installer for macOS Catalina. This procedure works for everyone but for those who are making it for Hackintosh remember that the USB and primarily Hackintosh or installing macOS only works with Intel-based CPUs. With that said, let’s jump into it.

What You’ll Need

For this process, we’ll need a couple of important files.

  • A 12GB+ USB

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, and other. As well as open and burn disc images and .dmg and .sparseimage files. It’s shareware which you can try for free for 15 days.

TransMac for Windows can open, erase Macintosh disk drives, USB flash drives, CD/DVD/Blu-ray media, DMG, DMG part, sparse bundle and sparse image files. Some of the features are create, compress and expand Mac dmg disk images, built-in CD/DVD burner to burn ISO and DMG files on Windows.

First and foremost, connect your USB and open TransMac. When the USB is shown, right click on it and select Format Disk For Mac.

Format Disk For Mac

Accept the warning by clicking on Yes.

Name the volume and click on OK.

At the last warning of formatting the disk, click on Yes.

Last Warning of Formating Disk


After the disk is formatted, right click on the USB and select Restore with Disk Image.

Accept the warning by clicking on Yes once more.

Warning Pop Up Message

Then click on the three dots to browse the macOS Catalina DMG and select it.

Choose the macOS Catalina DMG and click on OK.

Ok Restore Disk Image to Drive

Hit Yes on the pop and it will start creating the USB so it will take a considerable time.

After that, you’ll see the success message, and that’s now done.

In the end, download and copy and paste these files into the EFI Partition in the USB.

The USB drive is now completely ready for installing macOS on Windows or on Mac itself. So that’s how to create bootable USB Installer for macOS Catalina on Windows 10 with TransMac. This works perfectly now.

That’s it. If there’s some problem or suggestions, we’re happy to answer. Let us know in the comments down below.


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 --volume /Volumes/MyVolume
For High Serria: sudo /Applications/Install macOS High --volume /Volumes/MyVolume
For EI Capitan: sudo /Applications/Install OS X El --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X El

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.

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.

Create Mac Os Installer Usb

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.


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.

Creating A Bootable Installer For Usb Mac Os

Nov 15, 2018 16:47:20. / Posted by Candie Kates to Mac Solution

Creating Installer For Mac Catalina

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