Hdiutil convert /path/to/image.dmg -format UDTO -o /path/to/newimage.iso To convert from DMG to ISO, open up Terminal (in Applications/Utilities) and type: This has the benefit of not requiring you to change the extension, but probably won't work out any quicker as the process is so straightforward in Disk Utility. iso.įor those of you who love the command line, you can convert disk image formats using hdiutil. Use the same settings as above, and remember to change the file extension to. Just select Convert from the toolbar or the Images menu. dmg disk image, it's just as easy to convert it to. To avoid confusing Windows PCs, just rename your image with the. You have created an ISO image, but strangely Disk Utility gives it the.

Choose 'DVD/CD master' from the Image format pop-up menu, and leave the Encryption as none. Choose your folder, and then select a name for your image. Disk Image from Folder' from the File menu, or hit Command-Shift-N. Next, open up Disk Utility, located in the Utilities folder in the Applications folder. The first step in creating an ISO image is to make a folder of all the things you want to be in your disk image. This is especially useful if you want to burn a CD or DVD and your Mac doesn't have a burner but your PC does. These can be created on your Mac, and can be read by any Mac or Windows PC. The cross-platform standard for disk images is the ISO format. Unfortunately, the dmg type disk images that Mac OS X uses are not really Windows friendly. The most common uses of this are to create backups, to create a file for burning to CD/DVD, or to transfer the entire contents of a hard drive from one computer to another. You can then transfer this file around, and then simply double-click on it to mount the disk image. They can be used to create a exact copy of any CD, DVD or hard drive and turn it into a single. Double-clicking this file will mount a disk image with the application inside on your desktop.ĭisk images have far more widespread uses than this though. If you download an application like Firefox or VLC for example, they come as a. Their most common use is for distributing applications across the internet. Most Mac users should be familiar with disk images, and if you aren't, you probably use them all the time without even realising.

Install mac disk image file on pc