Updating the pbuilder
You should always have a current pbuilder whenever you are testing your source packages, especially when you are building for a development release that is rapidly changing, to ensure that the dependencies are properly found. To update your pbuilder, use:
sudo pbuilder update
If you would like to upgrade you pbuilder to a new release you can use pbuilder update in combination with the --distribution flag:
sudo pbuilder update --distribution <newdistro> --override-config
* License
* Ubuntu Packaging Guide Index