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ISKOTB

macrumors 65816
Original poster
Aug 6, 2011
1,078
239
FL
I power on the laptop it stays at the apple spinning wheel for about 30/40 seconds then the desktop overall the computer is fast but anyway to speedup the boot time?
 
Last edited:
I power on the laptop it stays at the apple spinning wheel for about 30/40 seconds then the desktop overall the computer is fast but anyway to speedup the boot time?

Did you select your main disk in System Prefs > Startup Disk?
 
Yes
 

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You might want try running these in Terminal if you are having unusually long boot times:

Code:
sudo kextcache -system-prelinked-kernel

sudo kextcache -system-caches
 
I pasted each line individually...nothing happened closed terminal then I shutdown not sure if there is any improvement....can someone explain them commands please? I'm new to mac

Thanks
 
I pasted each line individually...nothing happened closed terminal then I shutdown not sure if there is any improvement....can someone explain them commands please? I'm new to mac

Thanks

did you hit enter? it should have asked for your admin password to run the commands. From the man page:

Code:
   -system-prelinked-kernel
              This option is a convenience to update the prelinked kernel used
              for startup on the root volume, with all kexts in the system
              extensions folder that have been loaded to date.  This option
              implies -all-loaded.

     -system-caches
              Rebuild the info caches for system kexts on the root volume.
 
Yes first line it asked for admin password then pasted second line it didn't each line took a second it didn't run scripts or anything then I shutdown after
 
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