then start typing the following terminal commands:ĥ- Command 1: create a dmg container on the desktop of a size (8 BG) named 'Sierra.dmg':. using spotlight search type 'terminal' and press enter. Keep this file as it is and never try to open, transfer or install)Ĥ- Now, Open terminal. 2- download the official macOS Sierra installer using this link.ģ- double click the downloaded installOS.dmg (5.01 GB) to install the file named 'installOS.pkg' which will create a file named 'Install macOS Sierra.app' in the applications folder in your MAC. iso : -ġ- you must ensure that you have enough disk space for running the full process, at least 40 Gigabytes. you can download the official new & old macOS versions from this link. I have applied the method to macOS Sierra.
You have to follow these steps carefully and copy the terminal commands as it is. - The process of converting installOS.dmg to to a bootable 'macOS.iso' is very important as VirtualBox can run only run macOS installation from 'iso' images only also the iso image can be used for installation of macOS on unsupported device.
