Ubuntu: Modify the Dependency of a package (*CAUTION* THIS MAY BREAK THE SYSTEM UNINTENTIONALLY)

*CAUTION* THIS MAY BREAK THE SYSTEM UNINTENTIONALLY

Search packages on:
http://packages.ubuntu.com/
http://www.ubuntuupdates.org/
http://www.debian.org/distrib/packages

1. Extracts the filesystem tree:
  $ dpkg -x original.deb data
2. Extracts the control information (default to DEBIAN/):
  $ dpkg -e original.deb
3. Edit the dependency of the packages:
  $ vi DEBIAN/control
  $ mv DEBIAN data/
4. Create a new debian archive:
  $ dpkg -b data new.deb
5. Install the new package:
  $ sudo dpkg -i new.deb


If some dependency issues still occurred, dpkg may suggest you to use "--auto-deconfigure" to solve those issue. *CAUTION* THIS MAY ALSO BREAK THE DEPENDENCY OF OTHER INSTALLED PACKAGES.
If the dependency is broken after using the "--auto-deconfigure" option, try the following commands to fix it:
Reinstall the original version of some packages which break the dependency:
  $ sudo apt-get install package=x.y.z-m.n
Use "-f / --fix-broken" option in apt-get:
  $ sudo apt-get -f install package
    OR (if still unable to correct the problem, but may be a LOT of works to do.)
  $ sudo apt-get -f install