Restore the disk image loaded from the macOS installer into your working image file.Temporarily create a working image file.On this page, instead of executing multiple commands in “Terminal” to create an ISO file, you can easily create an ISO file by copying and executing a “shell script”.Īlso, I actually checked the operation of the created all ISO files with VMware and VirtualBox.īy the way, what the “shell script” does is roughly as follows. If you wish to import the files/data and apps from the backup, you can either copy from the source or can install new.I think that the ISO file for macOS installation is often used with virtual environment software such as VMware and VirtualBox. This will inquire you to select a new drive where you wish to install and through this process the new clean Mac OS X Mountain Lion is installed.When you are finish formatting, you need to quit out of the disk utility and choose install Mac OS X Mountain Lion option from the menu. Choose disk utility and select the hard drive that you desire to format and then choose erase button.Select the Mac OS X installer start up volume from the boot menu.Now with the boot installer drive connected to Mac, you reboot it and hold down the “option key”.This will automate the procedure with a DVD or USB. It is important to create a bootable install drive and make another manually with the USB drive.Make sure you do not jump over installing it- Wait. So, let’s get started with installing a clean Mac OS X Mountain Lion.įirst thing first, there is this Mountain Lion installer that is available from the Apple store requires to be downloaded. Before starting the process it is important to go through its manual, a handy guide that will assist you with a step by step process. The below mentioned process describes on how to clean install Mac OS X Mountain Lion. Though it is recommended to have a backup taken as it will be formatting the selected Mac disk and erases what is remaining on it of course even if you do not have any intentions to use after. There is nothing else on the drive, not even any apps or files will be included.

To clean install means, your drive is completely erased and Mac OS X Mountain Lion is installed on the new basis. However, most of the users are served by an easy upgrade procedure to OS X Mountain Lion through Apple store, some are eager to perform the clean install and start afresh.

The app is available in less than twenty bucks this Mountain Lion is all set to update to build on your working system. Max OS X Mountain Lion is a big story of Mac software today.

Clean install mac os x lion