ii  linux-headers-2.6.32-34              2.6.32-34.77                                    Header files related to Linux kernel version 2.6.32
ii  linux-headers-2.6.32-34-generic      2.6.32-34.77                                    Linux kernel headers for version 2.6.32 on x86/x86_64
ii  linux-headers-3.1.0-0301rc2          3.1.0-0301rc2.201108150905                      Header files related to Linux kernel version 3.1.0
ii  linux-headers-3.1.0-0301rc2-generic  3.1.0-0301rc2.201108150905                      Linux kernel headers for version 3.1.0 on x86/x86_64
ii  linux-headers-generic                2.6.32.34.40                                    Generic Linux kernel headers
ii  virtualbox-ose                       3.1.6-dfsg-2ubuntu2                             x86 virtualization solution - base binaries
ii  virtualbox-ose-dkms                  3.1.6-dfsg-2ubuntu2                             x86 virtualization solution - kernel module sources for 
ii  virtualbox-ose-qt                    3.1.6-dfsg-2ubuntu2                             x86 virtualization solution - Qt based user interface