Boot time gone from 23 to 40 seconds

Discussion in 'MacBook Pro' started by MacBookPro13", May 7, 2011.

  1. MacBookPro13" macrumors 6502a


    Jan 25, 2011
    The boot time of my 13" Macbook Pro (2011 base model) was normally around 23 seconds, now since I downloaded and used Onyx once (all it did was check the drive for errors, I didn't do any cleaning with it) the boot up time takes around 40 seconds.

    Would a re-install of the OS improve this back to around 23 seconds or what else can I do to get my snappy boot times back?
  2. pedrofan macrumors 6502

    Jun 9, 2008
    Type these commands in terminal.

    sudo chown root:admin /
    sudo kextcache -system-prelinked-kernel
    sudo kextcache -system-caches

    And make a pram and smc reset.

    That would fix it

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