Certificates in an installer must be valid when the installer is run. Six years ago, all Apple’s ran out, and it had provide new versions. How to cope with that.
installer
From Installer packages and metapackages, to the first for Big Sur with its new boot volume group. RSRs and their demise, and when an upgrade is an update.
If you want to update or install macOS differently from what is offered in Software Update, here are the options, and what each is best for.
Recovery reinstall, using an Installer app, or a bootable installer, or with an Apple silicon Mac in DFU mode? What the choices are, and how best to do it.
Many of us keep an emergency external drive at the ready by our Mac, in case we need to use it to recover from problems. What’s the equivalent for Apple silicon?
First-hand experiences of each macOS upgrade from El Capitan in 2015 to Ventura last year set the standard against which the release of Sonoma will be judged.
On 26 September, when Apple releases Sonoma, be careful what you click on in Software Update or SilentKnight, or the result might be unexpected. Here’s why.
From the Mac OS Installer app for 9.1 in 2001, through updates in the App Store, to Software Update settings, with Content Caching servers on the way.
How Big Sur gained an UpdateBrain that changed macOS fundamentally, and why you can’t get standalone or Combo updaters any more.
Download some vital free software, mount its disk image, run the Installer package there – but why does Ventura refuse to install it, and what you do?
The Eclectic Light Company 