Fix Lion slow TimeMachine backups

After upgrading to Lion, my TimeMachine Backups takes FOREVER to complete.

after 2 days of googling, I discover the solution:

  1. Be sure to disable TimeMachine using System Preferences
  2. Mount TimeMachine disk
  3. Launch a terminal and go to the TimeMachine Disk
  4. now rm -r .Spotlight-V100
  5. Now go to the Startup Disk
  6. rm -r .Spotlight-V100
  7. At this point restart your Mac