Reboot and Rebuild After Mavericks
My upgrade to Mavericks went surprisingly smooth; suspiciously smooth. None of my Python scripts broke, all of my Hazel rules continued to function and my most critical Keyboard Maestro macros continued to function. However, I immediately noticed that I could no longer adjust the volume with the keyboard function keys. After turning off everything that might be intercepting the key presses, I was beaten. I went about my work as usual.
I began to notice pauses and temporary hangs when working in the Finder and switching apps. Occasionally the dock would not respond to mouse-overs.
So, I did what I usually do. I rebooted into Recovery mode and repaired my disk and permissions. Disk first, then permissions. Things were not fine even though I performed the exact same process immediately before upgrading to Mavericks. Many blocks were misallocated and 1000’s of files had the wrong permissions after the upgrade.
After repairing, everything is OK again. The function keys work again and there are no unusual pauses when working in the Finder.