Upgrading laptop from 9.10 to 10.04 to 10.10

1. Installed all Updates
2. Clicked 'Upgrade' in the Update Manager to update to 10.04.1 LTS
1. Some Third party sources disabled.
2. ~1.7GB download
3. Couple hours and a number of dialog boxes later upgrade was done.
3. First boot after upgrade I get an error message: "An error occurred while mounting /proc/bus/usb". Solution found in the forums.
4. Ran Update Manager again, system was up-to-date, installed 6 updates.
5. Still didn't show upgrade to 10.10. Had to click on Settings and then under Release upgrade, select Normal Releases. Clicked Close and then Check again. Now Upgrade button was available.
6. Clicked 'Upgrade' to upgrade to 10.10
1. Another ~1.7 GB of download.
2. Few hours later and a reboot and I'm at 10.10