hdiutil create -o Mavericks.tmp -size 8g -layout SPUD -fs HFS+J -type SPARSE Mount the sparse image and restore the BaseSystem.dmg from inside the installer app to it.

I have included a factual disclaimer because Mavericks was a free release, and obtaining it as an ISO often involves non-standard conversion methods. Title: Revisiting Mac OS X Mavericks (10.9): Why an ISO is Hard to Find (And How to Make One) If you are scouring the internet for a ready-made Mac OS X Mavericks ISO , you have likely run into a wall of broken links, sketchy torrents, or forums yelling at you to "just use the App Store."

Use this command to create a blank disk image (CDR format), which is identical to ISO:

You need the file Install OS X Mavericks.app . (If you can't find it in purchases, Apple discontinued the direct link, so you may need to source it from a trusted archive like Mr. Macintosh).

Let’s break down why the ISO format is rare for Mavericks, and—if you genuinely need one for a virtual machine like VMware or VirtualBox—how to create a legitimate one yourself. Unlike older versions of OS X (Snow Leopard, Lion) that came on physical DVDs, Mavericks (released in 2013) was the second version of OS X distributed entirely digitally via the Mac App Store.