Create Dmg Installer From App

13-05-2021 admin

Jan 19, 2018 Disk Utility to Create a Bootable macOS/OS X Installer. Before using createinstallmedia command, people used to use Disk Utility to create a bootable installer drive manually. But the process is much more complicated than the Terminal method. So Apple also suggests you make a bootable install drive via Terminal. Feb 19, 2020 create-dmg. Create a good-looking DMG for your macOS app in seconds. Imagine you have finished a macOS app, exported it from Xcode, and now want to distribute it to users. The most common way of distributing an app outside the Mac App Store is by putting it in a.dmg file. These are hard to create, especially good-looking ones.

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 upgrade macOS or reinstall macOS, but it can be useful when you want to install on multiple computers without downloading the installer each time.

Download macOS

Find the appropriate download link in the upgrade instructions for each macOS version:

macOS Catalina, macOS Mojave, and macOS High Sierra download directly to your Applications folder as an app named Install macOS Catalina, Install macOS Mojave, or Install macOS High Sierra. If the installer opens after downloading, quit it without continuing installation.
To get the required installer, download from a Mac that is 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.
macOS Sierra downloads as a disk image that contains a file named InstallOS.pkg. Open this file and follow the onscreen instructions. It installs an app named Install macOS Sierra into your Applications folder.
OS X El Capitan downloads as a disk image that contains a file named InstallMacOSX.pkg. Open this file and follow the onscreen instructions. It installs an app named Install OS X El Capitan into your Applications folder.

Use the 'createinstallmedia' command in Terminal

Download Dmg Installer

Connect the USB flash drive or other volume that 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.
Open Terminal, which is in the Utilities folder of your Applications folder.
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:
Press Return after typing the command.
When prompted, type your administrator password and press Return again. Terminal doesn't show any characters as you type your password.
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.
When Terminal says that it's done, the volume will have the same name as the installer you downloaded, such as Install macOS Catalina. 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:

Plug the bootable installer into a compatible Mac.
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.
Choose your language, if prompted.
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.
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:

The next massive update of the macOS, macOS Mojave that was put to test for a while, is now officially out. As described at the event, it will definitely include system-wide Dark Mode, Apple News, Desktop Stacks and a lot more. With these features in count, there will be much more small and huge features that were not in list such as improved Siri, favicons and tracking protection in Safari and much more.

As of appearance, most users had appeal for a dark mode which should cover most of the apps at least default apps. Including these, there was a FaceTime bug that Apple fixed with a supplemental update to improve reliability and ease of access.

Getting macOS Mojave is simple in Mac. All there is needed to do is head over to the App Store, search for it and click Get. It will then start loading. On Windows, that’s completely different plus complex. For installing macOS Mojave on Windows, it takes to prepare or pick up Mojave ISO or Mojave VMware & VirtualBox image first. Both of these files are entirely difficult to figure out. While we’ve done that for you already but for some reason, creating it will take no more than a couple of minutes.

Related:Install macOS Mojave on VMware on Windows PC [New Method]

Create macOS Mojave ISO File

Though we’ve created and made macOS Mojave ISO file and macOS Mojave VMware & Mojave VirtualBox image online. For some reasons if you’d like to obtain Mojave ISO whether for installing Mojave on Windows or for other reasons, we’ve it prepared for you.

Creating macOS Mojave ISO file for installing macOS Mojave on VMware or VirtualBox works the same without a difference. This process can be done on machine running macOS, on an actual Mac and on a virtual machine. This process can be done on any macOS version. Just for your information, I’ve done it on macOS Catalina.

Related:Download macOS Mojave DMG File – (Direct Links)

Step One – Download macOS Mojave from App Store

As macOS Mojave is on the App Store, head over there, search for macOS Mojave and click on Get.

As of macOS Catalina release, macOS Mojave won’t be there easily, so you may Get macOS Mojave from the App Store.

Get macOS Mojave

Then it will begin downloading. It will take some while since it’s around 6GB so take a cup of coffee or have a rest.

macOS Mojave downloading

Step Two – Apply Commands on Terminal

Once that’s finished, Open Terminal from Spotlight.

Open Terminal

On the Terminal, copy and paste the commands one by one.

Mount DMG Disk to your macOS

Unmount Disk

Rename and Move Image File to macOS Desktop

The macOS Mojave ISO file should now be there on the desktop. It will look similar to this.

Mojave-ISO

Step Three – Install macOS Catalina on VMware or VirtualBox