ii  linux-headers-2.6.32-28                   2.6.32-28.55                                    Header files related to Linux kernel version
ii  linux-headers-2.6.32-28-generic           2.6.32-28.55                                    Linux kernel headers for version 2.6.32 on x
ii  linux-headers-3.0.0-0300                  3.0.0-0300.201107220917                         Header files related to Linux kernel version
ii  linux-headers-3.0.0-0300-generic          3.0.0-0300.201107220917                         Linux kernel headers for version 3.0.0 on x8
ii  linux-headers-generic                     2.6.32.28.32                                    Generic Linux kernel headers
ii  virtualbox-ose                            3.1.6-dfsg-2ubuntu2                             x86 virtualization solution - base binaries
iF  virtualbox-ose-dkms                       3.1.6-dfsg-2ubuntu2                             x86 virtualization solution - kernel module 
rc  virtualbox-ose-qt                         3.1.6-dfsg-2ubuntu2                             x86 virtualization solution - Qt based user