• The main goal of this article is to provide macOS Catalina in 3 Different formats of DMG file, ISO File and VMDK file. The ISO and VMDK files are used to install macOS Catalina on any virtual machine using any virtualization software like VMware and VirtualBox.
• Install MacOS Catalina on Virtualbox; Install MacOS Mojave on Virtualbox; Download MacOS High Sierra dmg File (From App Store) If you are running MacOS High Sierra 10.13.5 and you want to upgrade to High Sierra 10.13.6 then you will need to download the dmg file and you can do it from App Store.

1. How To Mount A Dmg File In Virtualbox Server
2. How To Mount A Dmg File In Virtualbox Free
3. How To Mount A Dmg File In Virtualbox Download

Oct 06, 2009  How to Mount an IMG File on VirtualBox. October 6, 2009 amida168 Linux 4. I wanted to try out Ubuntu Remix 9.04 on VirtualBox, so I went to the official Ubuntu site and downloaded the file. When I first downloaded the file, I didn’t notice the download for Ubuntu Remix is an image file not an ISO file. This makes sense, since most netbooks do.

Table of Contents

2.1. Installing on Windows Hosts

2.1.1. Prerequisites

2.1.2. Performing the Installation

2.1.3. Uninstallation

2.1.4. Unattended Installation

2.1.5. Public Properties

2.2. Installing on Mac OS X Hosts

2.2.1. Performing the Installation

2.2.2. Uninstallation

2.2.3. Unattended Installation

2.3. Installing on Linux Hosts

2.3.1. Prerequisites

2.3.2. The Oracle VM VirtualBox Kernel Modules

2.3.3. Performing the Installation

2.3.4. The vboxusers Group

2.3.5. Starting Oracle VM VirtualBox on Linux

2.4. Installing on Oracle Solaris Hosts

2.4.1. Performing the Installation

2.4.2. The vboxuser Group

2.4.3. Starting Oracle VM VirtualBox on Oracle Solaris

2.4.4. Uninstallation

2.4.5. Unattended Installation

2.4.6. Configuring a Zone for Running Oracle VM VirtualBox

As installation of Oracle VM VirtualBox varies depending on your host operating system, the following sections provide installation instructions for Windows, Mac OS X, Linux, and Oracle Solaris.

For the various versions of Windows that are supported as host operating systems, please refer to Section 1.4, “Supported Host Operating Systems”.

In addition, Windows Installer must be present on your system. This should be the case for all supported Windows platforms.

The Oracle VM VirtualBox installation can be started in either of the following ways:

• By double-clicking on the executable file.

• By entering the following command:

  This will extract the installer into a temporary directory, along with the .MSI file. Run the following command to perform the installation:

Using either way displays the installation Welcome dialog and enables you to choose where to install Oracle VM VirtualBox, and which components to install. In addition to the Oracle VM VirtualBox application, the following components are available:

• USB support. This package contains special drivers for your Windows host that Oracle VM VirtualBox requires to fully support USB devices inside your virtual machines.

• Networking. This package contains extra networking drivers for your Windows host that Oracle VM VirtualBox needs to support Bridged Networking. This enables your VM's virtual network cards to be accessed from other machines on your physical network.

• Python support. This package contains Python scripting support for the Oracle VM VirtualBox API, see Chapter 11, Oracle VM VirtualBox Programming Interfaces. For this to work, an already working Windows Python installation on the system is required.

  See, for example: http://www.python.org/download/windows/.

  Note

  Python version at least 2.6 is required. Python 3 is also supported.

Depending on your Windows configuration, you may see warnings about unsigned drivers, or similar. Click Continue for these warnings, as otherwise Oracle VM VirtualBox might not function correctly after installation.

The installer will create an Oracle VM VirtualBox group in the Windows Start menu, which enables you to launch the application and access its documentation.

With standard settings, Oracle VM VirtualBox will be installed for all users on the local system. If this is not wanted, you must invoke the installer by first extracting as follows:

Then, run either of the following commands on the extracted .MSI file. This will install Oracle VM VirtualBox only for the current user.

If you do not want to install all features of Oracle VM VirtualBox, you can set the optional ADDLOCAL parameter to explicitly name the features to be installed. The following features are available:

Main binaries of Oracle VM VirtualBox.

Note

This feature must not be absent, since it contains the minimum set of files to have working Oracle VM VirtualBox installation.

USB support.

All networking support. This includes the VBoxNetworkFlt and VBoxNetworkAdp features.

Bridged networking support.

Host-only networking support

Python support

For example, to only install USB support along with the main binaries, run either of the following commands:

The user is able to choose between NDIS5 and NDIS6 host network filter drivers during the installation. This is done using a command line parameter, NETWORKTYPE. The NDIS6 driver is the default for most supported Windows hosts. For some legacy Windows versions, the installer will automatically select the NDIS5 driver and this cannot be changed.

You can force an install of the legacy NDIS5 host network filter driver by specifying NETWORKTYPE=NDIS5. For example, to install the NDIS5 driver on Windows 7 use either of the following commands:

As Oracle VM VirtualBox uses the standard Microsoft Windows installer, Oracle VM VirtualBox can be safely uninstalled at any time. Click the program entry in the Add/Remove Programs list in the Windows Control Panel.

Unattended installations can be performed using the standard MSI support.

Public properties can be specified with the MSI API, to control additional behavior and features of the Windows host installer. Use either of the following commands:

The following public properties are available.

• VBOX_INSTALLDESKTOPSHORTCUT

  Specifies whether or not an Oracle VM VirtualBox icon on the desktop should be created.

  Set to 1 to enable, 0 to disable. Default is 1.

• VBOX_INSTALLQUICKLAUNCHSHORTCUT

  Specifies whether or not an Oracle VM VirtualBox icon in the Quick Launch Bar should be created.

  Set to 1 to enable, 0 to disable. Default is 1.

• VBOX_REGISTERFILEEXTENSIONS

  Specifies whether or not the file extensions .vbox, .vbox-extpack, .ovf, .ova, .vdi, .vmdk, .vhd and .vdd should be associated with Oracle VM VirtualBox. Files of these types then will be opened with Oracle VM VirtualBox.

  Set to 1 to enable, 0 to disable. Default is 1.

• VBOX_START

  Specifies whether to start Oracle VM VirtualBox right after successful installation.

  Set to 1 to enable, 0 to disable. Default is 1.

For Mac OS X hosts, Oracle VM VirtualBox ships in a dmg disk image file. Perform the following steps to install on a Mac OS X host:

1. Double-click on the dmg file, to mount the contents.

2. A window opens, prompting you to double-click on the VirtualBox.pkg installer file displayed in that window.

3. This starts the installer, which enables you to select where to install Oracle VM VirtualBox.

4. An Oracle VM VirtualBox icon is added to the Applications folder in the Finder.

To uninstall Oracle VM VirtualBox, open the disk image dmg file and double-click on the uninstall icon shown.

To perform a non-interactive installation of Oracle VM VirtualBox you can use the command line version of the installer application.

Mount the dmg disk image file, as described in the installation procedure, or use the following command line:

Open a terminal session and run the following command:

For the various versions of Linux that are supported as host operating systems, see Section 1.4, “Supported Host Operating Systems”.

You may need to install the following packages on your Linux system before starting the installation. Some systems will do this for you automatically when you install Oracle VM VirtualBox.

• Qt 5.3.2 or later. Qt 5.6.2 or later is recommended.

• SDL 1.2.7 or later. This graphics library is typically called libsdl or similar.

Note

These packages are only required if you want to run the Oracle VM VirtualBox graphical user interfaces. In particular, VirtualBox, the graphical VirtualBox Manager, requires both Qt and SDL. If you only want to run VBoxHeadless, neither Qt nor SDL are required.

In order to run other operating systems in virtual machines alongside your main operating system, Oracle VM VirtualBox needs to integrate very tightly with your system. To do this it installs a driver module called vboxdrv into the system kernel. The kernel is the part of the operating system which controls your processor and physical hardware. Without this kernel module, you can still use the VirtualBox Manager to configure virtual machines, but they will not start.

Network drivers called vboxnetflt and vboxnetadp are also installed. They enable virtual machines to make more use of your computer's network capabilities and are needed for any virtual machine networking beyond the basic NAT mode.

Since distributing driver modules separately from the kernel is not something which Linux supports well, the Oracle VM VirtualBox install process creates the modules on the system where they will be used. This means that you may need to install some software packages from the distribution which are needed for the build process. Required packages may include the following:

• GNU compiler (GCC)

• GNU Make (make)

• Kernel header files

Also ensure that all system updates have been installed and that your system is running the most up-to-date kernel for the distribution.

Note

The running kernel and the kernel header files must be updated to matching versions.

The following list includes some details of the required files for some common distributions. Start by finding the version name of your kernel, using the command uname -r in a terminal. The list assumes that you have not changed too much from the original installation, in particular that you have not installed a different kernel type.

• With Debian and Ubuntu-based distributions, you must install the correct version of the linux-headers, usually whichever of linux-headers-generic, linux-headers-amd64, linux-headers-i686 or linux-headers-i686-pae best matches the kernel version name. Also, the linux-kbuild package if it exists. Basic Ubuntu releases should have the correct packages installed by default.

• On Fedora, Red Hat, Oracle Linux and many other RPM-based systems, the kernel version sometimes has a code of letters or a word close to the end of the version name. For example 'uek' for the Oracle Unbreakable Enterprise Kernel or 'default' or 'desktop' for the standard kernels. In this case, the package name is kernel-uek-devel or equivalent. If there is no such code, it is usually kernel-devel.

• On some SUSE and openSUSE Linux versions, you may need to install the kernel-source and kernel-syms packages.

If you suspect that something has gone wrong with module installation, check that your system is set up as described above and try running the following command, as root:

If you are running on a system using UEFI (Unified Extensible Firmware Interface) Secure Boot, you may need to sign the following kernel modules before you can load them:

• vboxdrv

• vboxnetadp

• vboxnetflt

• vboxpci

See your system documentation for details of the kernel module signing process.

Oracle VM VirtualBox is available in a number of package formats native to various common Linux distributions. See Section 1.4, “Supported Host Operating Systems”. In addition, there is an alternative generic installer (.run) which you can use on supported Linux distributions.

Download the appropriate package for your distribution. The following example assumes that you are installing to a 64-bit Ubuntu Xenial system. Use dpkg to install the Debian package,as follows:

The installer will also try to build kernel modules suitable for the current running kernel. If the build process is not successful you will be shown a warning and the package will be left unconfigured. Look at /var/log/vbox-install.log to find out why the compilation failed. You may have to install the appropriate Linux kernel headers, see Section 2.3.2, “The Oracle VM VirtualBox Kernel Modules”. After correcting any problems, run the following command:

This will start a second attempt to build the module.

If a suitable kernel module was found in the package or the module was successfully built, the installation script will attempt to load that module. If this fails, please see Section 12.7.1, “Linux Kernel Module Refuses to Load” for further information.

Once Oracle VM VirtualBox has been successfully installed and configured, you can start it by clicking VirtualBox in your Start menu or from the command line. See Section 2.3.5, “Starting Oracle VM VirtualBox on Linux”.

The alternative generic installer performs the following steps:

• Unpacks the application files to the target directory /opt/VirtualBox/, which cannot be changed.

• Builds and installs the Oracle VM VirtualBox kernel modules: vboxdrv, vboxnetflt, and vboxnetadp.

• Creates /sbin/rcvboxdrv, an init script to start the Oracle VM VirtualBox kernel module.

• Creates a new system group called vboxusers.

• Creates symbolic links in /usr/bin to a shell script /opt/VirtualBox/VBox which does some sanity checks and dispatches to the actual executables: VirtualBox, VBoxVRDP, VBoxHeadless and VBoxManage.

• Creates /etc/udev/rules.d/60-vboxdrv.rules, a description file for udev, if that is present, which makes the USB devices accessible to all users in the vboxusers group.

• Writes the installation directory to /etc/vbox/vbox.cfg.

The installer must be executed as root with either install or uninstall as the first parameter. For example:

Or if you do not have the sudo command available, run the following as root instead:

Add every user who needs to access USB devices from a VirtualBox guests to the group vboxusers. Either use the OS user management tools or run the following command as root:

Note

The usermod command of some older Linux distributions does not support the -a option, which adds the user to the given group without affecting membership of other groups. In this case, find out the current group memberships with the groups command and add all these groups in a comma-separated list to the command line after the -G option. For example: usermod -G group1,group2,vboxusers username.

If you cannot use the shell script installer described in Section 2.3.3.2, “Using the Alternative Generic Installer (VirtualBox.run)”, you can perform a manual installation. Run the installer as follows:

This will unpack all the files needed for installation in the directory install under the current directory. The Oracle VM VirtualBox application files are contained in VirtualBox.tar.bz2 which you can unpack to any directory on your system. For example:

To run the same example as root, use the following commands:

The sources for Oracle VM VirtualBox's kernel module are provided in the src directory. To build the module, change to the directory and use the following command:

If everything builds correctly, run the following command to install the module to the appropriate module directory:

In case you do not have sudo, switch the user account to root and run the following command:

The Oracle VM VirtualBox kernel module needs a device node to operate. The above make command will tell you how to create the device node, depending on your Linux system. The procedure is slightly different for a classical Linux setup with a /dev directory, a system with the now deprecated devfs and a modern Linux system with udev.

On certain Linux distributions, you might experience difficulties building the module. You will have to analyze the error messages from the build system to diagnose the cause of the problems. In general, make sure that the correct Linux kernel sources are used for the build process.

Note that the /dev/vboxdrv kernel module device node must be owned by root:root and must be read/writable only for the user.

Next, you install the system initialization script for the kernel module and activate the initialization script using the right method for your distribution, as follows:

This example assumes you installed Oracle VM VirtualBox to the /opt/VirtualBox directory.

Create a configuration file for Oracle VM VirtualBox, as follows:

Create the following symbolic links:

Before updating or uninstalling Oracle VM VirtualBox, you must terminate any virtual machines which are currently running and exit the Oracle VM VirtualBox or VBoxSVC applications. To update Oracle VM VirtualBox, simply run the installer of the updated version. To uninstall Oracle VM VirtualBox, run the installer as follows:

As root, you can use the following command:

You can uninstall the .run package as follows:

To manually uninstall Oracle VM VirtualBox, perform the manual installation steps in reverse order.

The Debian packages will request some user feedback when installed for the first time. The debconf system is used to perform this task. To prevent any user interaction during installation, default values can be defined. A file vboxconf can contain the following debconf settings:

The first line enables compilation of the vboxdrv kernel module if no module was found for the current kernel. The second line enables the package to delete any old vboxdrv kernel modules compiled by previous installations.

These default settings can be applied prior to the installation of the Oracle VM VirtualBox Debian package, as follows:

In addition there are some common configuration options that can be set prior to the installation. See Section 2.3.3.7, “Automatic Installation Options”.

The RPM format does not provide a configuration system comparable to the debconf system. See Section 2.3.3.7, “Automatic Installation Options” for how to set some common installation options provided by Oracle VM VirtualBox.

To configure the installation process for .deb and .rpm packages, you can create a response file named /etc/default/virtualbox. The automatic generation of the udev rule can be prevented with the following setting:

The creation of the group vboxusers can be prevented as follows:

If the following line is specified, the package installer will not try to build the vboxdrv kernel module if no module fitting the current kernel was found.

The Linux installers create the system user group vboxusers during installation. Any system user who is going to use USB devices from Oracle VM VirtualBox guests must be a member of that group. A user can be made a member of the group vboxusers either by using the desktop user and group tools, or with the following command:

The easiest way to start an Oracle VM VirtualBox program is by running the program of your choice (VirtualBox, VBoxManage, or VBoxHeadless) from a terminal. These are symbolic links to VBox.sh that start the required program for you.

The following detailed instructions should only be of interest if you wish to execute Oracle VM VirtualBox without installing it first. You should start by compiling the vboxdrv kernel module and inserting it into the Linux kernel. Oracle VM VirtualBox consists of a service daemon, VBoxSVC, and several application programs. The daemon is automatically started if necessary. All Oracle VM VirtualBox applications will communicate with the daemon through UNIX local domain sockets. There can be multiple daemon instances under different user accounts and applications can only communicate with the daemon running under the user account as the application. The local domain socket resides in a subdirectory of your system's directory for temporary files called .vbox-<username>-ipc. In case of communication problems or server startup problems, you may try to remove this directory.

All Oracle VM VirtualBox applications (VirtualBox, VBoxManage, and VBoxHeadless) require the Oracle VM VirtualBox directory to be in the library path, as follows:

For the specific versions of Oracle Solaris that are supported as host operating systems, see Section 1.4, “Supported Host Operating Systems”.

If you have a previously installed instance of Oracle VM VirtualBox on your Oracle Solaris host, please uninstall it first before installing a new instance. See Section 2.4.4, “Uninstallation” for uninstall instructions.

Oracle VM VirtualBox is available as a standard Oracle Solaris package. Download the Oracle VM VirtualBox SunOS package, which includes the 64-bit version of Oracle VM VirtualBox. The installation must be performed as root and from the global zone. This is because the Oracle VM VirtualBox installer loads kernel drivers, which cannot be done from non-global zones. To verify which zone you are currently in, execute the zonename command.

To start installation, run the following commands:

The Oracle VM VirtualBox kernel package is integrated into the main package. Install the Oracle VM VirtualBox package as follows:

The installer will then prompt you to enter the package you wish to install. Choose 1 or all and proceed. Next the installer will ask you if you want to allow the postinstall script to be executed. Choose y and proceed, as it is essential to execute this script which installs the Oracle VM VirtualBox kernel module. Following this confirmation the installer will install Oracle VM VirtualBox and execute the postinstall setup script.

Once the postinstall script has been executed your installation is now complete. You may now safely delete the uncompressed package and autoresponse files from your system. Oracle VM VirtualBox is installed in /opt/VirtualBox.

Note

If you need to use Oracle VM VirtualBox from non-global zones, see Section 2.4.6, “Configuring a Zone for Running Oracle VM VirtualBox”.

The installer creates the system user group vboxuser during installation for Oracle Solaris hosts that support the USB features required by Oracle VM VirtualBox. Any system user who is going to use USB devices from Oracle VM VirtualBox guests must be a member of this group. A user can be made a member of this group either by using the desktop user and group tools or by running the following command as root:

Note that adding an active user to the vboxuser group will require the user to log out and then log in again. This should be done manually after successful installation of the package.

The easiest way to start an Oracle VM VirtualBox program is by running the program of your choice (VirtualBox, VBoxManage, or VBoxHeadless) from a terminal. These are symbolic links to VBox.sh that start the required program for you.

Alternatively, you can directly invoke the required programs from /opt/VirtualBox. Using the links provided is easier as you do not have to enter the full path.

You can configure some elements of the VirtualBox Qt GUI, such as fonts and colours, by running VBoxQtconfig from the terminal.

Uninstallation of Oracle VM VirtualBox on Oracle Solaris requires root permissions. To perform the uninstallation, start a root terminal session and run the following command:

After confirmation, this will remove Oracle VM VirtualBox from your system.

To perform a non-interactive installation of Oracle VM VirtualBox there is a response file named autoresponse. The installer uses this for responses to inputs, rather than prompting the user.

Extract the tar.gz package as described in Section 2.4.1, “Performing the Installation”. Then open a root terminal session and run the following command:

To perform a non-interactive uninstallation, open a root terminal session and run the following command:

Assuming that Oracle VM VirtualBox has already been installed into your zone, you need to give the zone access to Oracle VM VirtualBox's device node. This is done by performing the following steps. Start a root terminal and run the following command:

Replace vboxzone with the name of the zone where you intend to run Oracle VM VirtualBox.

Use zonecfg to add the device resource and match properties to the zone, as follows:

On Oracle Solaris 11 or later, you may also add a device for /dev/vboxusbmon, similar to that shown above.

If you are not using sparse root zones, you will need to loopback mount /opt/VirtualBox from the global zone into the non-global zone at the same path. This is specified below using the dir attribute and the special attribute. For example:

Reboot the zone using zoneadm and you should be able to run Oracle VM VirtualBox from within the configured zone.

How To Mount A Dmg File In Virtualbox Server

So you’re running Linux on your computer, maybe Ubuntu, and you have some files with the .dmg extension. In this guide, we’re going to talk about how to open, mount, extract, and otherwise get your files from these pesky DMG images. You could always just extract the files on a Mac, then transfer them back to your Linux machine. But if you really want to do this on Linux, without having to rely on Mac, here’s how to do it.

What are DMG image files?

Simply put, it’s a kind of image file. But not an image like a jpeg is an image. DMG is Apple’s proprietary disk image format, native to Mac OS X. There are actually a whole bunch of different types, format and options within this format. There are options for encryption, compression, and different kinds of partition schemes, among others. Unfortunately, this can make things pretty confusing when we’re trying to gain access to the data contained in one of these images.

Bart Tiongson, ed.

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. Their MIME type is application/x-apple-diskimage.

The HFS/HFS+ (Mac OS Extended/Journaled) file system is typically used in DMGs. However, this isn’t always the case. You may also sometimes find FAT and ExFAT files systems, as well as variations on HFS.

Does my system support DMG?

Perhaps the biggest hurdle to overcome when trying to work with DMG files is working with the HFS file system (Mac OS Extended). Linux supports HFS through the “hfs” and “hfsplus” kernel modules.

There’s an easy way to test if your system has these kernel modules. Plug in a USB drive formatted with the Mac OS Extended file system. If your particular distribution doesn’t have the appropriate modules, you will likely get an error message. On Ubuntu, you’ll get a popup window declaring “Ubuntu: Unable to mount '.

Alternatively, we can see if the kernel module files are present with find:

We want to see two files: “hfs.ko” and “hfsplus.ko”. If find doesn’t return these files, your system probably doesn’t support HFS.

You could also try “modinfo”: modinfo hfs and modinfo hfsplus should return something like:

If you get 'modinfo: ERROR: Module hfsplus not found' your system doesn’t have these modules.

Not all Linux kernels and distributions support HFS. This is especially the case for certain distributions that are a few years old. If you have kernel support for HFS, great! If not, don’t worry. There are still ways to extract data from your DMG files. While it’s nice to have the option to mount the images we’re working with, this is really the only functionality we’re losing without having the hfs and hfsplus modules. The two programs we’re going to use later on (P7ZIP and dmg2img) do not require kernel support to function.

What kinds of DMG images can be opened in Linux?

This guide is about how to open, mount, and extract files from read/write, read only, and compressed DMG image files. The following partition schemes have all been tested with the techniques discussed here.

• Apple Partition Map
• CD/DVD (partitioned)
• CD/DVD (partitioned) with ISO data
• Hard disk
• Master Boot Record Partition Map
• No partition map

This guide does not cover how to handle sparse disk images (.sparseimage), sparse bundle disk images (.sparsebundle), or CD/DVD masters. DMG images with partition scheme types of “CD/DVD” and “GUID Partition Map” do not appear to work with the techniques described here.

Option 1: Mount the DMG

If the Linux distribution you’re on has HFS support in the kernel (Ubuntu 14.04.1 LTS supports it), it’s pretty easy to just mount the DMG image:

We’re using “sudo” because we need root privileges to mount things. The HFS+ file system type is specified with “-t hfsplus”. The “/mnt” at the end of the command specifies where we’re mounting the image.

Unmount the image with sudo umount /mnt

If you get a wrong fs type message like the one below, it means the DMG file is either of an unsupported type, or it’s compressed. Unsupported images include sparse images, sparse disk bundles, CD/DVD masters, and images with partition schemes of the CD/DVD or GUID Partition Map types.

Use “file” to learn a little more about the image file:

If you get image.dmg: x86boot sector that means it’s probably using a GUID Partition Map and isn’t supported. This isn’t good, however, it’s also not too terribly common.

What’s more common is to see something like this:

If mounting isn’t working, and this is what you’re seeing with “file image.dmg”, then you’re luck!. Our problems are being caused by compression. Linux doesn’t like to mount compressed DMG images. To get around this little obstacle, we’ll use dmg2img (see below).

Option 2: Use dmg2img for compressed images

So you have a DMG image that you can’t mount because it’s compressed. You’ve done “file compressed_image.dmg” and you got “compressed_image.dmg: bzip2 compressed data”. The fix? That’s easy: use dmg2img to convert it to an uncompressed image. Once you run the image through dmg2img you should be able to mount it no problem.

How To Mount A Dmg File In Virtualbox Free

Don’t have dmg2img? It’s usually pretty easy to get using your distribution’s package management. On Ubuntu, you’d do:

Using dmg2img isn’t very difficult. Type “dmg2img” into the command line followed by the name of the DMG file you want to decompress. The Mac OS X version of Firefox is a good example of a compressed DMG file.

How To Mount A Dmg File In Virtualbox Download

Now mount the resulting .img file:

Option 3: Extract DMG contents with P7ZIP

P7ZIP is awesome. It’s the Linux/BSD version of 7-Zip. Check out their SourceForge page here With it you can literally extract files from any kind of image or archive. Just kidding… It doesn’t really work with every format conceivable. However, it can handle (in alphabetical order): ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR and Z. Impressed? I certainly am!

Installing p7zip is pretty easy using your distribution’s package management system. On Ubuntu with apt-get:

In addition to being able to extract data from compressed and uncompressed images alike, P7ZIP doesn’t require the HFS kernel modules at all. In the example below, we’re going to extract all of the files from “Firefox 33.1.1.dmg”. When we’re done, we’ll have a tidy little folder called “Firefox”.

Invoke P7ZIP to extract archives and images with “7z x”.

Notice that 7z extracted three files: “0.ddm”, “1.Apple_partition_map”, and “2.hfs”. To actually get to the files, we’ll need to run 7z again on “2.hfs”.

We picked “2.hfs” because it was the biggest of the three, meaning it was probably the one with the data. Simple but effective logic. After a few moments, you should have a folder called “Firefox” with all of the files from the original DMG.