Running the scriptīash Mac-Installer-Imageizer.sh path-to-installer.app Update 2023-09: Changes on Apple’s end require the use of createinstallmedia for all macOS installers since 10.13 High Sierra. This post explains what it’s doing and why. So, I set out to assemble the collected wisdom on the topic into a relatively comprehensible bash script that, given the path to any macOS installer application from OS X Lion to macOS 12 and beyond, generates a bootable ISO in the current directory. However, many of these either aren’t up to date, aren’t easy to understand, or simply don’t work. VMware Fusion will happily create one for you if given an installer application when creating a new VM, but ESXi is not similarly equipped.Ī search for how to convert macOS installers to disk images reveals that there are plenty of blog posts, forum threads, and bash scripts dedicated to solving the issue. Anyone who’s ever sought to install a macOS / Mac OS X from the past decade within VMware ESXi has discovered the need to first convert the installer application to a bootable disk image file.
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