Rebuild cache????

[addiphotoman]

​Can anyone please explain to me in a language that I baby can understand what "rebuilding cache" is and how to do it (in Yosemite 10.10.5)

I've had some shutdown problems on my latest update to Yosemite 10.10.5 on a GA-Z87X-D3H and I'm wondering if it has anything to do with cache. I'll make a detailed thread of my install soon, hopefully of a 100% successful one

 

[antoniomax]

Somebody more into this than me may give out a better shot, but if I'm not wrong:

Your hackintosh keeps a cache of all kexts to speed up boot, to prefetch things, keep these custom kexts all in a 'known' state.
When you rebuild it, because you've updated some kext, made another custom driver install, etc, you're updating this cache with the new files.

Now don't ask me why it's a good practice to do it and why everyone does it.. I bet it's because the bootloader uses this cache but I'm way far from home here.

According to Cunningham law, this should set you in the right direction.