hulandy

One more question. I noticed that the hard drive light always blinking regularly, about 1 or 2 seconds. There must be something wrong with it..

It's worked. Thanks! Actually I've been did it(rebuild the cache).. It's just,, I used "kext utility" on the partition where already had a Sierra on it. At this time I replaced the utility to Mavericks's partition.. Maybe it's the reason.. I'd use 10.9.4 because I can't find the image of 10.9.5.

First of all I want to say thank you for the management. It's unexpected that I can install OS X on my old laptop. Ok.. the problem is after I do an update from 10.9.4 to 10.9.5, and then it stuck at "Missing bluetooth controller". But it can be boot with "bootflag -f". or, set kernel.plist file " KernelBooter_kexts = Yes " also works well... This totally make me confused .. I've been replaced the mach_kernel of 10.9.5. PLS help..Thanks..