Find that same InstallESD.dmg image, select it and press ‘Burn ... Therefore if you have the GM build installed already, you need not do anything - you are completely up to date with OS X. I have Lion ...

Mac OS X Lion Installer Mac OS X Mountain Lion Installer How to get old versions of macOS (for 10.10 - 10.12 installers) Download your desired version and a .dmg file should be provided, with a .pkg ...

For those who have been keeping their Macs up to date with Apple's pantheon of exotic felines, upgrading to Mountain Lion should be fairly straightforward, require less than an hour (not including ...