| Name | DMG |
| Full name | DMG, Mac OS X Disk Image |
| File extension | .dmg |
| MIME type | |
| Developed by | Apple INC. |
| Type of format | Raster image |
| Description | The DMG file extension was created by Apple and is primarily used on Macintosh computers and devices. In most cases the DMG file is used to give the Mac devices the ability to install different types of files and software that originate from the internet. The DMG file is essentially a mountable disc image that shows up on your desktop when it is opened. The file contains raw data that is usually both encrypted and compressed. Mac systems treat DMG in the same way they would treat a disc that was inserted and they instantly try to open or “run” the file. |
| Technical details | The DMG file extension was specifically designed for Macintosh computers and users are likely to have a lot of trouble if trying to use them on a Windows device. There may be instances where one can convert the files, but it probably needed to look for additional utilities that will allow the file to be accessed from the chosen device. There are some also executable files that can help with this. However, if the original DMG file was password protected by Apple, those executable applications may not work. The DMG file has several different formats that are used and these include Linux, Fat32, UFS, ProDOS, HFS and HFS+. |
| Associated programs | Power Archiver, 7-zip, Iso Bit Zipper |
| Wiki | https://en.wikipedia.org/wiki/.dmg |
Apple Disk Image (.dmg,.smi,.img) is a disk image format commonly used by the macOS operating system. When opened, an Apple Disk Image is mounted as a volume within the Macintosh Finder. A PKG file is a package of compressed installer files used to install a software program. It is commonly used for installing software in Mac OS X and may be. Jun 30, 2013 PKG files are Mac OS X installation (setup) packages that contain installer scripts ('Scripts' file) and compressed installation files ('Payload' file) that are used to install Mac software applications onto a user's hard drive. With AnyToISO it's possible to extract PKG file contents and even convert it to ISO format, on both Windows and Mac OS X. Unlike the macOS DMG installer, which Apple doesn’t provide nowadays, the app version of the macOS install package is not bootable. Hence it is not mountable nor compatible with operating systems like Windows. For some reason, if you want macOS in.DMG or.ISO format, there is a method to convert the.app file. Convert Pkg To Dmg. A.DMG file is the disc image file used by MAC OSX. It is an exact copy of a hard disk or compact disk. The DMG file can be burned to a CD or mount as a normal volume on Macintosh computers. Usually, the data in DMG file is stored in compressed format. The magical functionality necessary to create most packages is built right in to Terminal with the pkgbuild command. Start by mounting the application's DMG file.
If you’re running a Linux distro as your daily driver, you can still other distros and OS’. You can even enjoy macOS. You can run Catalina using the clover bootloader and you can even install macOS in a Docker container.
Today we’re going to take a look at how set up a simple macOS Big Sur VM in QEMU, accelerated by KVM.
- ALSO READHOW TO: Dual Boot macOS and Linux
- UPDATED TUTORIAL HOW TO: Install macOS Big Sur With OpenCore on Linux
REQUIREMENTS
- A modern Linux distribution
- QEMU > 2.11.1
- A CPU with Intel VT-x / AMD SVM support is required
- A CPU with SSE4.1 support is required for >= macOS Sierra
- A CPU with AVX2 support is required for >= macOS Mojave
- Internet access for the installation process
INSTALL QEMU & OTHER REQUIRED PACKAGES
Open the terminal and run: sudo apt install qemu uml-utilities virt-manager dmg2img git wget libguestfs-tools p7zip
NOTE: Adjust install command and, possibly, packages names according to your distro.
We will need a more packages but they will be installed later, when needed.
INSTALL macOS Big Sur
1. Open terminal and run git clone https://github.com/kholia/OSX-KVM.git macOS-Big-Sur. When you’re done cloning the git, cd into path with cd macOS-Big-Sur
2. Download macOS Big Sur installer from Apple with ./fetch-macOS.py --big-sur
2.1 If you want to download and install macOS High Sierra, Mojave or Catalina, just run ./fetch-macOS.py and choose which installer you want to download.
Convert Pkg To Dmg
NOTE: This tutorial was written during macOS Big Sur’s developer beta stages. When Apple will release macOS Big Sur to the public, you’ll more than likely only have to run step 2.1 and skip steps 3-5 . If there will be any major change, this tutorial will be updated.
3. Install xar. Arch and derivates users can install xar from the AUR. Now we need to extract SharedSupport.dmg from InstallAssistant.pkg.
Pkg To Dmg
In the terminal, while in the macOS-Big-Sur folder, run: /path/to/xar-dir/xar/src/xar -xf InstallAssistant.pkg.
If you’ve installed xar from AUR, run: xar -xf InstallAssistant.pkg
4. Install darling-dmg. If you’re running Arch or derivates, you can install the package from the AUR. We will need it to mount SharedSupport.dmg
To do this run: mkdir temp && /path/to/darling-dmg-repo/darling-dmg SharedSupport.dmg temp
If you’ve installed the package from the AUR, run: darling-dmg SharedSupport.dmg temp
5. Now that SharedSupport.dmg is mounted we need to extract BaseSystem.dmg from it. The file we need is located inside a .zip file, so we’ll use 7zip to extract it. To do that, run:
7z e ./temp/com_apple_MobileAsset_MacSoftwareUpdate/*.zip AssetData/Restore/BaseSystem.dmg
6. Next step will be to convert BaseSystem.dmg to BaseSystem.img, an image that QEMU can work with. To convert the image, run: dmg2img BaseSystem.dmg BaseSystem.img
7. Create a virtual HDD image where macOS will be installed. Run qemu-img create -f qcow2 mac_hdd_ng.img 128G
NOTE: You can change the size of the virtual drive. 128 GB is just an example. Also if, for any reason, you want to change the name of the disk image from mac_hdd.img to something else, you’ll also have to update OpenCore-BS.sh to point to the new image name.
8. Lets set up and configure a bridge network connection which can be used by the VM can use to connect to the internet. Required for the installation process. To do this, run:
NOTE: If virbr0 network interface is not present on your system, it may have been deactivated. Try enabling it by using the following commands:
9. Now you’re ready to install macOS Big Sur. In theory. Because the script you need to run in order to install macOS comes preconfigured. So, for a basic install and run of macOS Big Sur, you won’t need to edit anything.
However, it comes preconfigured to use only 3GB or RAM. Let’s take care of that. Edit OpenCore-BS.sh with nano, micro or vim and set it to asign at least 8GB of RAM. More if you can spare it.
Now you can start the installation process. Run ./OpenCore-BS.sh . You’ll be greeted by this screen. Choose macOS Base System
10. First thing you’ll need to do is run Disk Utility and format your virtual drive.
11. Exit Disk Utility, choose Reinstall macOS and go through the usual installation steps.
Pkg To Dmg File
12. During the installation process, your virtual machine will restart and will boot back up. When it does, choose macOS Installer to continue the installation.
13. After a loong time of installing, you will eventually be greeted with the welcome screen where you can set up your account and settings.
How To Convert Pkg To Dmg
Don’t expect this to run just like a Mac. It’s a VM afterall. And it will feel sluggish mainly because there’s a lack of hardware acceleration. And this can only be fixed by passing through a graphics card to the VM. To learn how to do that and other tips, check out the official project on Github.