Burn iso to cd mac mountain lion

It also lets you re-install Lion, if necessary. But if the drive the recovery partition is on goes bad, you're out of luck. For this and many other reasons, we're going to show you how to create a bootable version of the OS X Lion installer. Sometimes referred to as a clean install, this process lets you install Lion on a disk that is empty or has no pre-existing OS installed on it. In this article, we're going to use the bootable OS X install DVD you created to install Lion on a disk you will erase as part of the installation process.

Before we begin, remember that you will be erasing one of your volumes to use as the target for the Lion install.

Install OS X Lion Using a Bootable DVD

You should have a complete, current backup of that drive, because all data on the drive will be lost. As soon as your Mac restarts, hold down the C key. This will force your Mac to boot from the DVD. The boot process will take a long time, so be patient. Be sure to turn on all monitors that are connected to your Mac because in some multi-monitor setups, the main display may not be the default monitor used by the OS X Lion installer.


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Disk Utility will open and display a list of connected drives. This process can take some time, so be patient. Select the disk you wish to be the target for your OS X Lion install.

How to make a BOOTABLE DISC on Mac OS X Mountain Lion

Remember that we're going to erase this disk, so if you haven't performed a current backup of the data on the disk, stop and do it now. If you have a current backup, then you're ready to proceed. Select the disk you wish to erase. A drop-down sheet will appear, asking you to confirm that you wish to erase the target disk.

Click Erase. Disk Utility will erase the drive. A drop-down sheet will appear, asking if you agree to the license terms.

How to Burn Disc Images in Mac OS Without Disk Utility

Click Agree. A list of disks will appear; select the disk you wish to install OS X Lion on. This should be the same disk you erased earlier. Click the Install button.


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The Lion installer will copy the necessary files to the target disk. Click on the ISO file and then click on the Burn button at the top.

Pop your disc into the drive and click the Burn button to start the process. As mentioned earlier, this no longer works on OS X Lastly, if you love using the Terminal, you can type a simple command to burn the ISO image file. I would suggest copying the file to an easy location like your desktop and renaming the file to something short too.

In my case, I copied the file to my desktop and renamed it to just ubuntu. I navigated to the desktop by typing in CD Desktop and then typed in hdiutil burn ubuntu.

Copy to Local Drive

If you have a disc in the drive before you run the command, the burn process will start automatically. Those are all the ways you can burn your ISO image on a Mac without third-party software! If you have any questions, feel free to comment.

Burn ISO in Mac OS X

Founder of Online Tech Tips and managing editor. He began blogging in and quit his job in to blog full-time.


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He has over 15 years of industry experience in IT and holds several technical certifications.