Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Installed/Config-files/Unpacked/Failed-config/Half-installed
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err: uppercase=bad)
||/ Name                   Version        Description
+++-======================-==============-============================================
un  linux-headers          <none>         (no description available)
un  linux-headers-2.6      <none>         (no description available)
ii  linux-headers-2.6.18-3 2.6.18-7       Common header files for Linux 2.6.18