How To Access A Dmg File On Mac Terminal

  1. How To Access A Dmg File On Mac Terminal 3
  2. How To Access A Dmg File On Mac Terminal 2
  3. How To Access A Dmg File On Mac Terminal 2

If you want to convert a Mac disk image file DMG to ISO format than its not much a difficult task. This conversion could be done through Mac Terminal easily.

The reason behind this conversion is that DMG is a file format which works on Mac only but if you want to transfer any DMG file to Windows system then first you have to convert it to Windows compatible file format ISO, otherwise the DMG file is useless for Windows.

How To Access A Dmg File On Mac Terminal

Mount using Disk Utility. You can also mount DMG file using Disk Utility application available in Mac OS. Look for Disk Utility using Launcher and launch it. After that select File-Open Disk Image in the main menu and choose DMG file you want to mount.

So, follow the instructions written below to convert DMG file to ISO format.

Sep 29, 2016  You can open folders, files, URLs, even Applications, directly from the Terminal app. This is especially useful if you’re writing a script to access a file, folder or a URL. The command, intuitively, is “open”. The arguments you pass to “open” helps it to decide what you’re asking it to open. Mar 28, 2007  The syntax to enter into the Terminal is as follows: hdiutil convert imagefile.dmg -format UDTO -o imagefile.iso. This will actually create a file called imagefile.iso.cdr in the current directory, but you can replace the image files with their appropriate paths and a target destination, for example. DMG files are native to Mac OS X and are structured according to Universal Disk Image Format (UDIF) and the New Disk Image Format (NDIF). They can be accessed through the Mac OS Finder application by either launching the DMG file or mounting it as a drive.

Step 1

Click on Finder

Step 2

How To Access A Dmg File On Mac Terminal

Click on Applications, and then click Utilities

Step 3

Double click on Terminal to launch Wd discovery for mac.dmg.

Step 4

In Terminal window type the following command and hit Enter button from keyboard. Here trickyways.dmg is our provided file name

hdiutil convert ~/Desktop/’trickyways.dmg’ -format UDTO -o ~/Desktop/’trickyways.iso’

Step 5

When Terminal completes process, you’ll find a file with .iso.cdr extension, as here is trickyways.iso.cdr besides the trickyways.dmg

Step 6

Click on trickyways.iso.cdr file & press enter to rename it. Delete .cdr extension


When you’ll try to delete .cdr the following Window will pop up, click on Use .iso option

Step 7

Now the extension of file is trickyways.iso

Related Content

Are you trying to make a bootable installer? Do you have the El Capitan installer downloaded from the App Store? You cannot make a bootable DVD but you can make a bootable flash drive.


Bootable USB Installers for OS X Mavericks, Yosemite, El Capitan, and Sierra


First, review this introductory article: Create a bootable installer for macOS. Second, see this How To outline for creating a bootable El Capitan installer. Simply replace the Terminal command with the one from the preceding article by copying it into the Terminal window. You will need an 8GB or larger USB flash drive that has been partitioned and formatted for use with OS X.


Drive Partition and Format

  1. Open Disk Utility in the Utilities' folder.
  2. After Disk Utility loads select the drive (out-dented entry with the mfg.'s ID and size) from the side list.
  3. Click on the Erase tab in the Disk Utility toolbar. Name the drive, 'MyVolume'. <---- IMPORTANT!
  4. In the drop down panel set the partition scheme to GUID. Set the Format type to Mac OS Extended (Journaled.)
  5. Click on the Apply button and wait for the Done button to activate. When it does click on it.
  6. Quit Disk Utility.


Create Installer

How To Access A Dmg File On Mac Terminal 3

Open the Terminal in the Utilities' folder. Choose the appropriate command line (in red) depending upon what OS X installer you want. Paste that entire command line from below at the Terminal's prompt:


Command for macOS High Sierra:

sudo /Applications/Install macOS High Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install macOS High Sierra.app

Command for macOS Sierra:

sudo /Applications/Install macOS Sierra.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install macOS Sierra.app

Command for El Capitan:

sudo /Applications/Install OS X El Capitan.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X El Capitan.app

Command for Yosemite:

How To Access A Dmg File On Mac Terminal 2

sudo /Applications/Install OS X Yosemite.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X Yosemite.app

Command for Mavericks:

sudo /Applications/Install OS X Mavericks.app/Contents/Resources/createinstallmedia --volume /Volumes/MyVolume --applicationpath /Applications/Install OS X Mavericks.app

How To Access A Dmg File On Mac Terminal 2


Press RETURN. You will be asked for your admin password. It will not echo to the Terminal window. Then press RETURN again. Wait for the return of the Terminal prompt signifying the process has completed. It takes quite some time to finish. Be patient.

Mar 3, 2018 7:47 PM

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