But there are a good number of reasons you might want a bootable Mountain Lion installer on an external hard drive or a thumb drive (USB stick).įor example, if you want to install Mountain Lion on multiple Macs, a bootable install drive can be more convenient than downloading or copying the entire Mountain Lion installer to each computer.
Like Lion (OS X 10.7) before it, Mountain Lion (OS X 10.8) doesn’t ship on a disc-it’s available only as an installer app downloadable from the Mac App Store, and that installer doesn’t require a bootable installation disc.
