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Apple Mac OS X disk image file definition and 2 other file types and linked programs information.
File extension dmg is used by following file type(s):
See also: How to write a DMG image to a USB thumb drive with Linux. DMG images are typically a kind of Universal Disk Image Format (UDIF), although there are others, namely NDIF and SPARSE. Although the.dmg file extension is usually used, they can also sometimes have an.img extension, or in some cases no extension at all. 7zip is distributed under LGPL license as a free software to use. The version available for Linux is known as p7zip package. I am using Linux mint so the installation part of this tutorial would be most suited for Linux mint, Ubuntu and other debain Linux distributions while the examples are universal for any Linux distribution.
On Mac the DMG format is used. The files in this format are containing folders where you can find the programs that we want to install in our team, quickly and easily. Unless you're looking for specific applications that are not available in the Mac App Store, it's unlikely you'll end up with such a file.
What is a DMG file and what is it used for?
The DMG files is the equivalent of the files in ISO format in Windows, because when you open them, a new unit is created, the unit that you have to access in order to install the corresponding file on your computer or simply move it to the applications folder . This type of file usually contains, in addition to the file that allows us to enjoy the program, a text document with a brief description or with instructions on its operation or compatibility.
How to open DMG files
DMG files are the equivalent of ISO in Windows. The files in ISO format, not only allows us to access their interior and copy them to a CD or DVD as it is, but also allow us to install or copy their content. With the files in DMG format three quarters of the same happens, since the file itself can be an installer that we unzip and point, or it can be a disk image that contains different files that have to be copied as is another file or on an external drive.
Install DMG files
Although at first it may seem that we are going to need a complicated process to open a file in DMG format, nothing is further from reality, since we only have to click twice on it to create a new unit where we will find all the content that is inside. Then just that we have to access the unit in question and execute the file so that it is installed or executed.
It is necessary to take into account the type of file that is, since in some occasions, an actual installation is not performed on our Mac, but the application only runs, so if we subsequently delete the .DMG file we will lose access to the application. In these cases, if it is an executable application, we must drag the file to the applications.
Restore content in a unit
If, on the contrary, it is an image that contains a copy of a unit, it will not help us to access the inside of the file to consult it if we are not going to be able to access the data or make use of the application. In these cases, we must use Disk Utility, with which we can select both the file in DMG format that we want to restore and the unit where we want to do it quickly and very easily.
What application do I need to open a file in DMG format?
Open DMG file
As in Windows no third-party application is required to work with files in ISO format, Mac does not need any application to work with files in DMB format, although on the Internet we can find various applications that allow us to do are not really necessary , unless we are forced to open this type of files on other platforms such as Windows or Linux, where the PeaZip application is one of the most recommended, a completely free application.
What to do if you do not open a DMG file
Since the launch of macOS Sierra, Apple has eliminated the possibility of natively installing third-party applications that have not been created by developers previously identified by Apple. If the DMG file containing the application that we want to install, shows us an error message, stating that the file may be corrupt, we must activate the possibility of activating third-party applications by entering the following line in Terminal.
sudo spctl -master-disable
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eye! in front of master are two dashes (- -) Next we must restart the Finder with the following command: Killall Finder
Once we have entered that command, we return to the section Security and privacy located within System preferences and Allow applications downloaded from: select Any site.
How to convert a DMG file to EXE
A DMG file, as I mentioned above, is a folder containing several applications, which create a unit when we open them, so it is not an executable file on Mac, therefore, we can not convert a DMG file to EXE Trying to convert a DMG file to an executable file is like converting a folder with pictures (for example) into an executable file.
How to read DMG files in Windows
If we want to access the content stored in a DMG file on a PC, in Windows we have several applications at our disposal that allow us to unzip the file to access its content. Another issue is that we can do something with the content of it. The best applications that we can find currently in the market for this work are PeaZip, 7-Zip and DMG Extractor.
Pea7Zip open DMG files in Windows
One of the best free tools to work with compressed files is PeaZip, a tool compatible with all the most used formats on the market, in addition to DMG, ISO, TAR, ARC, LHA, UDF ... The user interface is very intuitive and does not we will have no problem in making us quickly with this application to decompress from our Windows PC any file in DMG format.
DMG Extractor
DMG Extractor, as its name indicates, is an excellent application to extract the contents of files in DMG format quickly and easily. This tool is not free but for specific occasions, we can download the trial version through the following link, a version that allows us to decompress files in DMG format whose size does not exceed 4 GB.
7-Zip open DMG files in Windows
7-Zip is an excellent tool to compress and decompress any type of file on our Windows PC, a tool that is also completely free and compatible with macOS DMG files. Once we have installed the application, we just have to place it on top of the file, press the right button and select open with 7-zip to start extracting the content.
How to read DMG files in Linux
But if we want to open files in DMG format in Linux, we can use PeaZip again, the same application that we can use to decompress this type of files in Windows, an application compatible with more than 180 formats and that is also completely free.
The 7Zip is an open source software available to compress and decompress files and folders into various formats. It can be easily installed on Windows 10 or later operating system because of the .exe file availability but when it comes to Linux like Ubuntu, Red Hat or other versions, it is not that much simpler for newbies. On Linux, you have to use the command line with some particular commands to install the 7-ZIP.
But why we install the 7-zip, as I told you it is an open source and free, and also one the best open source file archiving software with the highest rate of compression ratio better than WinRAR. The compressions formats it can support are GZIP, TAR, ZIP, 7z, XZ, BZIP2, and WIM formats. According to the 7-zip official website, the compression ration of 7Zip is 2-10% better than any other compression tool. It also supports the AES-256 encryption and self-extracting feature. Besides this 87 language support is also there. If you don’t want to install the command line version of 7ZIP then go for the graphical user interface one. Here is the tutorial on that install p7Zip Desktop GUI on Ubuntu Linux using SNAP.
Here, today, in this tutorial we let you know how to install P7-zip on Ubuntu Linux via command line plus how to use the 7-zip on Ubuntu.
Use 7 Zip To Open Dmg On Linux Bash DownloadStep 1: Check the 7Zip installation
First of all, we confirm, whether the 7Zip compression tool is successfully installed on our Ubuntu system or not. For that just on the Command Terminal type:
7Z
If you get output something like shown in the below screenshot then it means 7Zip is successfully installed and ready to work on your Ubuntu or Debian operating system.
Step 2: Compress file with 7-Zip using Ubuntu command line.
To use the 7Zip on Ubuntu to compress some file or folder we can use both command line interface and graphical user interface. First I let you know how to use the command line.
For example, I have a folder called eclipse-installer in my Downloads directory. So, I switched to that directory using the CD Downloads command.
So under the Downloads directory, I run the command ls -la which can show all available files and folder available under any directory. You can see that in the below-given screenshot.
Now, I got the folder which I want to compress. So, the command which we use to archive or compress folder is:
7z afolder name.7zfolder name
Replace the folder name with the name of the folder which you want to archive, just like we did. In the above command, the ‘a’ stands for the archive.
In the same way, if you want to archive some file, let’s say pass.txt is the file and we want to compress it; then the command will be:
It is very simple you just need to mention the 7z a command along with file name with .7z extension and the original file name that you want to compress.
Step 3: Check the compress file information.
After the compression of the file or folder, if want to check that 7z archived file information then run the below command along with the file name:
7z l file name
For example, here we compressed the folder named eclipse-installer and after archiving it became eclipse-installer.7z, so that command to see the information of this file will be:
Step 4: Decompress file using 7Zip on Ubuntu command line
Now above, we have successfully compressed a folder and also told you the way to archive the file. Here, we will Decompress the same file.
For decompression or extraction of any compressed file, the command is very simple
7z e filename
– ‘e‘ stands for extraction
– filename: mention the compressed file need to extract using 7zip.
So, if we want to extract the file which we compressed in this tutorial above then the command will be like this:
How To Open Dmg File
If you want to extract the file along with a full path or folder then use the x instead of e in the above command:
7z x foldername
so, in our case it will be:
Step 5: How to compress file & folder using Ubuntu 7zip GUI (Graphical user interface).
Yes, besides the command line interface the 7zip also support the Graphical user interface on the Ubuntu. In case, you are not using the minimal Ubuntu server with only command line interface then you can use this simple method of archiving the files and folders on Ubuntu or Debian using 7-Zip compression too.
1. Open the File manager on your Ubuntu Linux machine and go to the folder or file you want to compress and right click on it. And select the compress.
2. Select the .7z format and then click on the Create button. Beside the .7z you can also use the .Zip and .tat.xz compression formats to archive your file and folders.
Step 6: Extract files on Ubuntu using 7zip GUI
To extract the compressed the right click on that and click on the Extract to… option.
Select the Destination, if it is other than the location of the file where already it is, otherwise just click on the Select button and the archived file of your’s will automatically get extracted/uncompressed.
So, in this way you can install the P7Zip or 7-Zip on Ubuntu or Debian Linux to compress & extract the files/folder both by command line and graphical user interface (GUI).
Open Dmg Mac
If you faced any problem while performing this tutorial, let us know, the comment section all yours!!
Use 7 Zip To Open Dmg On Linux Bash Mac
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