===== Creating a local Repository for Ubuntu or Debian =====

Follow the 4 steps:

  1.Install dpkg-dev (and also it dependencies):
     $ dpkg -i dpkg-dev
  
  
  
  2.Put the packages in a directory
     $ mkdir -p /sources/ubuntu
     $ cp /cdrom/* /sources/ubuntu


  3.Create a table of content that apt-get update can read
     $ cd /sources/ubuntu
     $ dpkg-scanpackages binary /dev/null > binary/Packages
     $ dpkg-scansources source /dev/null > source/Sources
     
  NB: depending on OS version, you may need to compress the table of content file
  Ex: $ dpkg-scanpackages binary /dev/null | gzip -9c > binary/Packages.gz

  
  4. Add a line to your /etc/apt/sources.list pointing at your repository
     deb file:///sources/ubuntu binary/
     deb-src file:///sources/ubuntu source/

Now you are able to :
  apt-get update
  
For installing, use apt-get or aptitude

Previously downloaded Packages are generally stored on your system in the /var/cache/apt/archives directory. If you have installed apt-cacher you will have additional packages stored in its /packages directory.