Comment 20 for bug 432089

Please try the following:

  sudo add-apt-repository ppa:ubuntu-boot/ppa
  sudo apt-get update
  sudo apt-get dist-upgrade

This should install an updated kernel package, and replace sreadahead with ureadahead.

The first reboot will reprofile your system, the second reboot should be substantially faster.

Please let me know how you get in (before/after bootcharts always appreciated)