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Create Dmg From App

  1. Os X Create Dmg From App
  2. Create Dmg From Apfs For Restore

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.

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.
  1. Method 1 Creating a DMG File Manually 1. Create a New Folder for your files. Place the files you would like in your disk image. Right-click (or CTRL-Click) the folder and select 'Get Info. Open 'Disk Utility. ' Go to 'Applications.
  2. If it’s an app written for macOS, you obviously won’t be able to install and run the app on Windows. But, you can still open them up and take a look. You can’t open DMG files directly in Windows, though. For that, you’ll need a third-party tool. Open DMG Files in Windows By Using 7-Zip or DMG Extractor.
  3. Jul 15, 2016  Information. To convert.APP file to.DMG format follow the steps below. Create a new folder on Mac and copy.APP file to the new folder. Open Disk Utility File New Image Image from Folder. Choose the new folder. Specify the name of the DMG file and the path where the file should be created and click Save button.
  4. Method 2: If you need to add a custom EULA to your disk image, this page describes how to do so using command-line tools. The gist of it is to use the template software licensing agreement resource provided in Apple's slasforudifs1.0.dmg, modify the resource with your EULA text and inject the resource back into your disk image file.
Create Dmg From App

Active oldest votes. Up vote 6 down vote accepted. Some step by step instructions can be found here. After opening Disk Utility: Click the New Image icon. Place the contents of folder/directory into the newly created disk image.

Folder to dmg windows. Above all, DMG and ISO files are highly portable; it is easy for anyone to upload and transfer them through the Internet.

Os X Create Dmg From App

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.

  1. First of all, download the full Mac OS installer, and save it in the Applications folder.
  2. 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.
  3. 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.
  4. 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.
  5. Choose the image format as Hybrid (HFS+/ISO/UDF).
  6. 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.

Create Dmg From Apfs For Restore

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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These advanced steps are primarily for system administrators and others who are familiar with the command line. You don't need a bootable installer to install macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.

Download macOS

Download a macOS installer.* You can find the appropriate download link in the upgrade instructions for macOS Catalina, macOS Mojave, macOS High Sierra, macOS Sierra, and OS X El Capitan.

  • If the macOS installer opens after downloading, quit it without continuing installation.
  • macOS Sierra and El Capitan download as a disk image that contains an installer named InstallOS.pkg or InstallMacOSX.pkg. Run this installer before continuing.
  • If downloading macOS Catalina, macOS Mojave, or macOS High Sierra for the purpose of creating a bootable installer, your Mac must be using macOS Sierra 10.12.5 or later, or El Capitan 10.11.6. Enterprise administrators, please download from Apple, not a locally hosted software-update server.

Then find the installer in your Applications folder as a single ”Install” file, such as Install macOS Catalina.

Use the 'createinstallmedia' command in Terminal

  1. Connect the USB flash drive or other volume you're using for the bootable installer. Make sure that it has at least 12GB of available storage and is formatted as Mac OS Extended.
  2. Open Terminal, which is in the Utilities folder of your Applications folder.
  3. Type or paste one of the following commands in Terminal. These assume that the installer is still in your Applications folder, and MyVolume is the name of the USB flash drive or other volume you're using. If it has a different name, replace MyVolume in these commands with the name of your volume.
    Catalina:*
    Mojave:*

    High Sierra:*
    Sierra:
    El Capitan:
  4. Press Return after typing the command.
  5. When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
  6. When prompted, type Y to confirm that you want to erase the volume, then press Return. Terminal shows the progress as the bootable installer is created.
  7. When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Mojave. You can now quit Terminal and eject the volume.

* If your Mac is using macOS Sierra or earlier, include the --applicationpath argument, similar to the way this argument is used in the commands for Sierra and El Capitan.

Use the bootable installer

After creating the bootable installer, follow these steps to use it.

  1. Connect the bootable installer to a compatible Mac.
  2. Use Startup Manager or Startup Disk preferences to select the bootable installer as the startup disk, then start up from it. Your Mac will start up to macOS Recovery.
    Learn about selecting a startup disk, including what to do if your Mac doesn't start up from it.
  3. Choose your language, if prompted.
  4. A bootable installer doesn't download macOS from the Internet, but it does require the Internet to get information specific to your Mac model, such as firmware updates. If you need to connect to a Wi-Fi network, use the Wi-Fi menu in the menu bar.
  5. Select Install macOS (or Install OS X) from the Utilities window, then click Continue and follow the onscreen instructions.

Learn more

For more information about the createinstallmedia command and the arguments that you can use with it, make sure that the macOS installer is in your Applications folder, then enter this path in Terminal:

Catalina:

Mojave:

High Sierra:

Sierra:

El Capitan: