Hdiutil attach /tmp/MacBigSur.dmg -noverify -mountpoint /Volumes/MacBigSur Hdiutil create -o /tmp/MacBigSur -size 12500m -volname MacBigSur -layout SPUD -fs HFS+J First, we must create a temporary disk image:.Next launch the Terminal application by hitting Command+Spacebar and typing “Terminal” and hitting the return key, or by launching it directly from the Utilities folder.
The MacOS installer app should be in the /Applications folder and be labeled as “Install macOS Big Sur.app” or similar, keep it there and make note of the file name.
#Macos mojave iso full#
We will be focusing on making an ISO file for macOS Big Sur, but you can use this same approach for making an ISO file of MacOS Catalina and macOS Mojave too. For the purposes here, we’ll walk through how you can make a MacOS Big Sur ISO file by using the terminal. app file and do not arrive as a disk image, to create a MacOS ISO file requires a sequence of steps through the command line, or the use of a third party application. Because the macOS installer application is an.