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.
driver
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.
How can I support this printer under OS X 10.6.8 an Mavericks?
Since migrating to a new iMac I have had problems accessing some of the images on an external drive. How can I repair its permissions?
The Eclectic Light Company 