Installing applications from a.dmg package at the command line is not something you need to do every day. But it is a nice tool to have if you want to install an application on a remote server or script the installation of a package to a group of desktop Macs. Oct 10, 2007 – Copy your dmg file to your current apple desktop. – In the Utilities Folder in your Applications Folder select Disk Utility – Select your external device in the left column of the utility – Click the Restore button. Furthermore, installation methods aside, doing an installation from disc image is not normally done, except in situations where you have a multilicense network, and then it is normally not so much done as an image of the installer disc, but as an image of an already preinstalled hard drive on similar vintage Mac and model. Install macOS Mojave on PC & VMware & VirtualBox. To install macOS Mojave on PC, VMware & VirtualBox. Firstly, you need to download the dmg file of macOS Mojave 10.14 or new updates. Then you have to create a Bootable USB for it. The.dmg File of the App you want to install. Download & Save the.dmg file in any folder. Non-Guest User account access in Mac OS X (Any User account with app-install permissions or Administrator account). In our Example, We will be using the Opera browser.dmg file to demonstrate the installation process. Steps to Install.dmg Apps in Mac OS.
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A .DMG file is a container file commonly used to distribute applications for Mac OS X. Installing software from one of these requires you to mount the image and move its contents to your computer’s “Applications” directory.
The process for installing new applications on your Mac can be confusing at first because it differs greatly from Windows’ software installation process. Nevertheless, the Mac method of installing software is actually quite simple and intuitive once you are accustomed to it.
What are .DMG Files?
DMG stands for Disk iMaGe, and is a format commonly used to distribute files and applications among Apple computers. A DMG file is like a virtual DVD or hard drive. They can be “mounted” on your Mac in order to work with their contents, or even burned to an actual physical disc.
In order to understand the concept of a DMG disk image, think of a storage volume such as a CD, DVD, hard drive, or external drive. A DMG file is like one of these devices in that it serves as a means to encapsulate documents, images, software, and other files. The difference is that with a DMG, there is no physical storage medium. There is only the DMG file, which can be written to a hard drive, burned to a CD or DVD, or sent over the Internet.
In order to work with the contents of a DMG file, you must mount the the disk image to your system. This may sound daunting, however “mounting” a DMG file with Mac OS X is no more complicated than double-clicking it’ icon. The operating system will load the load image and place a new icon both on your desktop, and in the sidebar of the Finder. The icon will have the same name as the DMG, and you’ll be able to browse through its contents like any other folder.
Once you are done working with the contents of the file, you will want to remove or “unmount” it from your system. Do this by opening the Finder and clicking the eject icon next to the virtual drive’s icon. Or, go to the Desktop, click once on the icon, and press CMD+E.
Installation Process
Software installation with Mac OS X is very different than in the Windows world. On a Windows PC you run an installer, tick off a few checkboxes, and wait for the progress meter to reach completion. There usually is no such “installation wizard” on a Mac, you simply drag and drop the program into your computer’s “Applications” directory. The trick is that most Mac applications are distributed as images called DMG files, and many new Mac users end up running applications directly from the image instead of installing them to the “Applications” directory.
Enough explanation, here’s how to install an OS X app from a DMG file:
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Further Explanation
Alright, that was the abridged version. Here’s the long version. For example, you’ve just downloaded the DeskLickr application, and the DeskLickr_1.2.dmg is sitting on your desktop. You double-click it and a new icon labeled “DeskLickr 1.2” appears on desktop.
Here’s what the desktop looks like at this point:
How to Install Software from DMG Files on a Mac
Since most of the time a new Finder window also pops up when the image is ready for use, this one is now will sit on desktop:
Different applications are going to show you slightly different Finder windows. Each application’s designers like to add their own artwork. Glitter aside, most applications are trying to tell you the same thing. See the arrow pointing from the DeskLickr icon to the 'Applications' shortcut? It’s telling you to drag and drop the icon into that folder. Once you’ve done so, the app will be installed.
If a program doesn’t provide a shortcut to the Applications folder, you’ll need to pop open a new Finder window.
Press CMD+N to open a new window, then drag the program over to “Applications” in the left-hand side of the window.
How to Install Software from DMG Files on a Mac
House Cleaning
Once the new program is installed it’s time to do some house cleaning. You no longer need the disk image you downloaded, so follow these steps:
Bonus Tip: Add Your New Application to the Dock
In order to add the new application to the dock, follow these steps:
An intrepid reader asked the following question: How do you install a .dmg package from the command line?
Many applications are distributed as disk images, a compressed binary format. If you double click a disk image in the Finder, it is mounted automatically. Once mounted, installation of the application is typically done by dragging an icon to the Applications folder. The same can be accomplished from the command line using two commands, hdiutil and cp.
The following steps show the installation of a popular VNC client for OS X called 'Chicken of the VNC'. It can be used as a remote desktop client for Linux, Mac, or Windows hosts.
The download file is named 'cotvnc-20b4.dmg'. Here are the steps needed to install it remotely from the command line.
note: this technique can be used from a local Terminal window or a remote SSH connection.
Mount the disk image
The first step is to mount (or attach) the disk image. From the command line, use: hdiutil mount cotvnc-20b4.dmg
I received the following output:
A mounted disk image appears on the Desktop, in the Finder, and more importantly shows up as a directory in /Volumes. In this case, the last line of output from hdiutil showed exactly where the disk image was mounted.
Sometimes when a disk image is mounted, it will prompt you to agree to a license first. In that case, the text that would normally appear in a GUI dialog box instead appears in the Terminal window. Once you scroll to the bottom of the agreement, you can type in Y to continue or N to stop. The Firefox disk image is one example of a package that displays a license before mounting.
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Install the application
Use the cp command to copy the application to /Applications:sudo cp -R '/Volumes/Chicken of the VNC/Chicken of the VNC.app' /Applications
The -R switch means to copy recursively, in other words, copy everything from that location including all subdirectories and files below. It is important to leave off the trailing '/' from the 'Chicken of the VNC.app' directory, or the command will not copy the directory itself, just the contents. After entering your password, the application will be installed and ready to use.
Most applications can simply be copied to the /Applications directory. However, some are distributed in a .pkg format and must be installed using the installer command instead of cp. To install a .pkg, use this command:sudo installer -package /path/to/package -target '/Volumes/Macintosh HD'
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Unmount the disk image
To tidy up, return to your home directory and unmount the disk image: cd ~
hdiutil unmount '/Volumes/Chicken of the VNC/'
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You should see this message after the unmount: '/Volumes/Chicken of the VNC/' unmounted successfully.
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Installing applications from a .dmg package at the command line is not something you need to do every day. But it is a nice tool to have if you want to install an application on a remote server or script the installation of a package to a group of desktop Macs.