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OSX Yosemite 10.10.5 won't boot after attempted Update

Joined
Sep 14, 2015
Messages
49
CPU
Gigabyte GA-Z97M-D3H Micro ATX LGA1150 Motherboard - Intel Core i5 4690K 3.5 Ghz Quad Core Process
Mac
MacBook Pro
Classic Mac
Mobile Phone
iOS
it works normally now but what does adding the "-f" to the boot list do?
 

n3oNLit3

Moderator
Joined
Mar 1, 2013
Messages
982
Motherboard
GA-Z77X-UD5H
CPU
i7-3770K
Graphics
2x GEFORCE GT 640
Mac
iMac, MacBook Air, MacBook Pro, Mac Pro
Classic Mac
Mobile Phone
iOS
According to an unreliable source in 'loads kernel caches' Below is what Ive compiled through searches

-f

.....Ignores kext caches during bootup. a kext might not have been installed properly or was (in your case) somehow 'affected', and kext cache can be damaged, and therefore become unbootable. The kext cache was replaced by the kernel cache, so theoretically, the -f boot flag should no longer work; however, this boot flag can still help.....
 
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