How to Install a .dmg File on a Mac 13/12/11 【4 Fixes】

A disk image file, commonly referred to as a DMG file, is a file extension used on macOS. These are digital replicas of physical disks used to store software installers that are compressed and serve as a substitute for the physical disk. They support spanning across multiple files, compression, encryption, and some may even be password-protected.

For using your Mac's virtual machine (VM) program, a DMG file is the most straightforward choice. So if you're wondering, "How do I install a DMG file on my Mac?" then you've come to the right place.

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As a Mac user, you can appreciate the many advantages of DMG files, as they are commonly used for software backups and include checksums. Fortunately, macOS offers a quick way to access these features; simply double-click on the DMG file, and it will mount on your device. However, issues may arise during downloads, as they might not work correctly on macOS 9. Additionally, it's essential to have a good understanding of these files, as DMG files downloaded from untrusted sources can sometimes contain malware or viruses that could harm your system.

Let's simplify the process of installing and using DMG files on a Mac.

Why Do Macs Use DMG Files?

Apple has developed a specific file format called DMG, mainly for its macOS system. These are containers used for applications in macOS that include a checksum to verify the file's integrity. But do you know how to install DMG files on Mac? If not, you can refer to our article.

But first, here are some reasons why Mac uses DMG files. Check these out;

Correct downloading: Ensure that the file is downloaded in the right format and has not been tampered with.

Compressed: DMG files can be highly compressed and support encryption.

Multifaceted: You can also mount a DMG file as a removable disk. For example, it can contain a background image, encrypted content, text descriptions, and more.

Readable/Writeable: You can read from and write to the DMG, and add files to it.

Easy to use: No need to decompress for installation.

Saves Space: A DMG file helps you save a lot of space on your PC.

Fix: How to Install DMG Files on Mac

There are several ways to install a DMG file on a Mac, but we recommend securing your data first, then trying the suggested solutions below to address your issue.

Solution 1: Install DMG File on Mac via Terminal

You can customize your Mac by installing software to perform specific tasks. For example, you can download software from the Internet and then install it from a trusted source. You can find binary distributions of software in various forms, which are typically provided in compressed format. You can mount a disk image in the Finder by double-clicking it, and then drag the icon to the Applications folder. The command line can also help you with this task, using commands like `cp` and `hdiutil`.

For OS X, you can install a popular VNC client called "Chicken of the VNC." You can use it to connect to Mac, Linux, or Windows hosts as a remote desktop client. Note that the file you download is named "content-20b4.dmg."

Step 1. Mount the disk image

First, mount the disk image and use the following command: $ hdiutil mount content-20b4.dmg

You'll see an output. On the Desktop in the Finder, you'll see the disk image mounted. You'll also see a directory in the /Volumes section. In this case, the last bit of output you receive will indicate where the disk image was mounted.

To verify that the disk image is mounted, you can also use the command: $ diskutil list

Many times, when you start to mount a disk image, the system prompts you to agree to its license. You might notice that the text of the license should appear in a GUI dialog box, but instead it appears in a terminal window. When you scroll to the end of the license agreement, you can type Y to continue or N to stop.

Step 2. Installing the Application

Now use the `cp` command to copy the application to `/Applications`: $ sudo cp -r "/Volumes/Chicken\ of\ the\ VNC/Chicken\ of\ the\ VNC.app" /Applications/

Here, the “-R” indicates recursive copying, which copies everything beneath the given location, including subdirectories and files. It's important that you don't leave a trailing slash after “Chicken of the VNC.app.” If you do, the command will copy the contents of the manual, but not the manual itself. After entering your password, the application should be available.

You'll also notice that most applications can be copied into the /Applications directory. However, if you have a .pkg file, you should not use cp to install it; instead, use the installer command.

To install a .pkg package, use the following command: '$ sudo installer -package /path/to/.'

Step 3: Eject the disk image

To clean up, you should return to the main directory and unmount the disk image:

Change to the previous working directory.

Use hdiutil to unmount "/Volumes/Chicken of the VNC/."

When the uninstallation is complete, you'll see a message that says:

"Chicken of the VNC" has been successfully unmounted.

Step 4: Remove the app from Finder

To do so, follow these steps:

1. Try navigating to the Applications folder in Finder. 2. Now select the app you want to uninstall and drag it to the Trash. 3. Authenticate as an admin. 4. Select Finder and click Empty Trash. In the confirmation dialog, click Force Empty Trash.

Solution 2: Install the DMG through Terminal

You can also use the Terminal on a Mac to mount a DMG file. Use this method if the contextual menu option is grayed out, or if none of the "Open With" options work. Drag the file to your desktop and proceed from there.

Step 1: First, open "Finder," click on "Applications," and then find "Utilities." From there, follow the steps in How to Open Terminal on Mac.

Step 2. Now, in the Terminal window, type the command "cd ~/Desktop" and press Enter.

Step 3. Type in the command "hdiutil attach filename.dmg" and press "Enter." Replace "filename.dmg" with the actual name of your .dmg file.

< b >Step 4.< /b > After the command line finishes, you'll see that the DMG is mounted on your Mac.

Solution 3: Install the DMG from the App Store

When you double-click a DMG file, you might receive a notification that the file can't be opened. However, this might be because the file wasn't downloaded from the App Store.

Step 1. Click on the Apple logo in the top left corner of your screen, and select “System Preferences.”

Step 2: In System Preferences, choose Security & Privacy.

Step 3: Tap the lock icon in the bottom left corner.

Step 4. You will be prompted for your password to update the page.

Step 5. Choose “Open” and then open the DMG file.

Solution 4: Open DMG File with Disk Image Mounter

If you recently tried to open a disk image and your Mac couldn't read it, or you got an error like “File system can't be mounted,” the file system might be corrupted. Try downloading it again. In that case, the Disk Image Mounter tool might help.

Step 1. Open the DMG file by right-clicking on it. Or, you can hit "Command +" to proceed.

Step 2: A list will appear beneath the «Use» button; select «Disk Image Mounter».

Select the Disk Image Mounter option.

Step 3: After mounting, you can view the contents of the DMG file right on your screen.

Additional Tip: Recover Deleted DMG File on Mac

There could be many reasons behind the permanent deletion of files. Data loss is a common issue that you might encounter frequently, DMG files not being an exception. Hence, there might be times when you need to recover data, which calls for some data safety measures. For instance, as a Mac user, professional recovery tools can help you recover DMG files on macOS.

Therefore, you can install the powerful Data Recovery Wizard for Mac, a dedicated tool designed to help recover data lost due to file system corruption, system crashes, or accidental file deletion. Even as a beginner, you can quickly recover deleted files from Mac Trash thanks to the software's user-friendly interface.

• Advanced features offer multiple options like previewing files so that you know what is being recovered.
• It offers "Quick" and "Deep" scan modes.
• Helps scan the Mac hard drive and locate DMG files.
• Makes it possible to successfully recover DMG files that were deleted accidentally.
• Assists in extracting data from backups using Time Machine or iTunes.
• Supports almost all video file formats.

Here's a step-by-step guide on how to recover deleted files using a professional DMG recovery tool on your Mac: 1. **Choose a suitable DMG recovery tool**: First, search online and select a reputable and highly-rated DMG recovery software like "Disk Drill" or "tools Data Recovery Wizard." Make sure the tool is compatible with your Mac's operating system version. 2. **Download and Install**: Visit the official website of the software you've chosen and download the Mac-compatible version. Follow the installation wizard's instructions to install it. 3. **Launch the Software**: After installation, open the DMG recovery tool. You might need to grant necessary permissions upon the first run, as prompted. 4. **Connect the Device**: If the deleted files were from an external storage device (like a USB drive or SD card), connect it to your Mac first. 5. **Scan the Disk**: In the software's main interface, select the disk partition where the deleted files were located, then click "Scan" or a similar option to initiate a thorough scan. The software will search for lost, deleted, or corrupted files. 6. **Preview and Select Files**: Once the scan is complete, the software will display all found files. You can preview certain file types like images or documents to confirm if they're the ones you want to recover. Select the files you wish to restore. 7. **Recover the Files**: After selecting the files, click "Recover" or "Recover Selected." Choose a safe location to save the recovered files, avoiding overwriting any existing data. Do not save the files back to the original DMG file to prevent data overwrite. 8. **Verify the Recovered Files**: Once the recovery is done, immediately check the files to ensure they're complete and undamaged. If all is well, congratulations – you've successfully recovered your deleted files. Keep in mind that not all files can be recovered, especially if new data has been written to the same location after deletion. Therefore, it's crucial to try a professional recovery tool as soon as possible after accidentally deleting important files.

Step 1: Select the location to scan

Launch the Data Recovery Wizard for Mac, select the hard drive, SSD, SD card, USB flash drive, or TF card from where you lost data. Click "Search for Lost Files" to start scanning.

Note: It is recommended to click “Disk Backup” from the left sidebar and create a backup for your Mac before data recovery, in case of further data loss. After the backup, the software can recover data from the Mac backup, and your computer can write new data again.

Select a location and click “Start Scan” to search for lost files.

Step 2: Scan for Lost Mac Data

The software will automatically scan for lost data on your MacBook/iMac. Once the scan is complete, you can filter out the required data using the "Type" and "Path" buttons.

Step 3: Recover Lost Data or Files

Preview the files and then click the “Recover” button to save the lost data to another location.

Final Thoughts

Once you become a Mac user, you might install and uninstall apps all the time as needed. However, with the right software, you can customize your Mac in many ways to get any job done quickly. For instance, when you install or download DMG files on Mac Monterey, it lets you use different apps that you didn't have before on your Mac, assisting you with additional file installations.

We have discussed several methods to install DMG files on Mac. But, what if you lose data and want to recover it? You cannot recreate your documents from scratch after losing data. This is where the tool Data Recovery Wizard for Mac comes to your rescue. It enables you to seamlessly retrieve crucial information.

Frequently Asked Questions About Installing DMG Files on a Mac

After going through our insightful article on DMG files, if you have any further queries on the subject, feel free to look here.

**1. How do I open a DMG file on a Mac?**

There is no need for extra effort on your part for this. Instead, simply double-click the DMG file, and it will mount and install on your device automatically.

**2. How can I install a DMG file on a Mac without an administrator password?**

To install a DMG file on a Mac without an administrator password, follow these steps:

1. First, download your DMG file. 2. Move it to your Mac desktop and open it. 3. Right-click on the application icon and select "Show Package Contents." 4. Copy the contents. 5. Close the window and create a new folder on your desktop named 'App.' 6. Then, paste the contents into this folder.

& lt; strong & gt; 3. Can I install DMG files on my Mac? & lt; / strong & gt;

You can mount a DMG file by right-clicking or double-clicking it on your Mac. Then, select "Open With" and click "Disk Image Mounter."

**4. How do I install DMG files in Ubuntu?**

Follow the steps:

• First, open a terminal.
• Then, enter the command:

Convert the file name.dmg in the directory /dmg2dmg to /path/to/name.img.

The “name” here refers to the name of the DMG file.

• The current input order is

This series of commands is used to create a mount point and mount an HFS+ formatted image file in a Linux system. Here's the explanation for each command: 1. **sudo mkdir /media/name**: Create a directory named "name" with superuser privileges at the location "/media/". 2. **sudo modprobe hfsplus**: Load the HFS+ module into the kernel so that the system can recognize and handle HFS+ file systems (HFS+ is the file system format used by Apple's Mac OS X). 3. **sudo mount -t hfsplus -o loop name.img /media/name**: Mount the image file named "name.img" as a superuser to the directory "/media/name". The "-t hfsplus" specifies the HFS+ file system type, and "-o loop" indicates that the image file should be mounted as a loop device. These commands are typically used to read and manipulate HFS+ formatted disk images from a Mac OS X system within a Linux environment.

Here, 'name' refers to the name of the IMG file.

1. Open Ubuntu's native program Brasero from the Sound & Video section. Select "Data CD," and then click "Enable Sidebar." 2. Click "Image Files," then choose "Burn." Let it finish. 3. Now, type the following command in a terminal:

1. `sudo mkdir /media/name`: Create a directory named "name" with superuser permissions in the "/media/" path. 2. `sudo modprobe hfsplus`: Load the "hfsplus" module, which provides read/write support for the HFS+ file system (used in Mac OS X). 3. `sudo mount -t hfsplus -o loop name.iso /media/name`: Mount the ISO file named "name.iso" as a superuser to the directory "/media/name" using the "loop" option to treat the ISO file as a device for mounting.

It will start the installation. Here, "name" is the name of the ISO.