How to use kernel extensions, and their replacement system extensions, on Macs running Big Sur, including M1 Macs.
A sequence of steps to safely install the optimum printer driver for new and old models in macOS Mojave.
Want support for an older printer? Apple says that’s your problem, and the printer manufacturers aren’t too interested either. But it can be done…
Apple can no longer be bothered to maintain its list of supported printers and scanners. You just have to try them out and see whether they work.
Adds details of the sequence of screens displayed at each stage, to help diagnose boot problems.
Practical tips for those intending to upgrade early, from checking compatibility, preparing workarounds, to making a copy of the installer.
You want to boot your Mac from an external drive, but it doesn’t work. A diagram to explain what can go wrong, and how to fix it.
The command bless used to be able to control all things to do with booting, but has become steadily less useful with the advent of SIP and others.
Single-diagram summary of how a modern Mac starts up in macOS 10.12 or 10.13, from pressing the Power button to running the kernel.
How macOS gets to load a hefty kernel and over 300 extensions so quickly: it cheats with a pre-linked kernelcache. And why you don’t see extensions loading in the log.