Try this and then retry update:
sudo rm /var/lib/apt/lists/my.archive.ubuntu.com_ubuntu_dists_natty_main_binary-i386_Packages --- Ubuntu Bug Squad volunteer triager http://wiki.ubuntu.com/BugSquad
Try this and then retry update:
sudo rm /var/lib/ apt/lists/ my.archive. ubuntu. com_ubuntu_ dists_natty_ main_binary- i386_Packages wiki.ubuntu. com/BugSquad
---
Ubuntu Bug Squad volunteer triager
http://