Re-Installing OSX Lion Eleven Years Later

OSX Lion install screen, progress bar saying 23 minutes left.

Hooo boy – re-installing Lion on a 2011 #MacbookAir is *not easy!*

The laptop can’t do it via network because, apparently, Apple let some file certificates lapse in 2018.

You have to dl a Lion install, open up the pkg and fish out InstallESD.dmg, THEN burn that to a USB stick with Balena Etcher

Wish me luck, I’m not gonna count my chickens until they boot.


It worked but Lion doesn’t connect to any https sites and Apple have made it abandonware soooo… back to Linux it is. And this time, I’m feeling minty.