autarquico@autarquico-laptop:~$ uname -r
2.6.22-14-generic
autarquico@autarquico-laptop:~$ sudo apt-get install linux-headers-2.6.22-14-generic build-essential
[sudo] password for autarquico:
Reading package lists... Done
Building dependency tree       
Reading state information... Done
linux-headers-2.6.22-14-generic is already the newest version.
The following extra packages will be installed:
  dpkg-dev g++ g++-4.1 libc6-dev libstdc++6-4.1-dev linux-libc-dev patch
Suggested packages:
  debian-keyring g++-multilib g++-4.1-multilib gcc-4.1-doc glibc-doc
  manpages-dev libstdc++6-4.1-doc diff-doc
The following NEW packages will be installed:
  build-essential dpkg-dev g++ g++-4.1 libc6-dev libstdc++6-4.1-dev
  linux-libc-dev patch
0 upgraded, 8 newly installed, 0 to remove and 0 not upgraded.
Need to get 3287kB/7934kB of archives.
After unpacking 31.9MB of additional disk space will be used.
Do you want to continue [Y/n]? y
Media change: please insert the disc labeled
 'Ubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016)'
in the drive '/cdrom/' and press enter

Get:1 http://archive.ubuntu.com gutsy-updates/main libc6-dev 2.6.1-1ubuntu10 [3287kB]
Media change: please insert the disc labeled
 'Ubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016)'
in the drive '/cdrom/' and press enter