ii  linux-headers-3.8.0-29                      3.8.0-29.42~precise1                    Header files related to Linux kernel version 3.8.0
ii  linux-headers-3.8.0-29-generic              3.8.0-29.42~precise1                    Linux kernel headers for version 3.8.0 on 64 bit x86 SMP
ii  linux-headers-3.8.0-30                      3.8.0-30.44~precise1                    Header files related to Linux kernel version 3.8.0
ii  linux-headers-3.8.0-30-generic              3.8.0-30.44~precise1                    Linux kernel headers for version 3.8.0 on 64 bit x86 SMP
ii  linux-headers-3.8.0-31                      3.8.0-31.46~precise1                    Header files related to Linux kernel version 3.8.0
ii  linux-headers-3.8.0-31-generic              3.8.0-31.46~precise1                    Linux kernel headers for version 3.8.0 on 64 bit x86 SMP
ii  linux-headers-generic-lts-raring            3.8.0.31.31                             Generic Linux kernel headers
ii  virtualbox-guest-dkms                       4.1.12-dfsg-2ubuntu0.3                  x86 virtualization solution - guest addition module source for dkms
ii  virtualbox-guest-utils                      4.1.12-dfsg-2ubuntu0.3                  x86 virtualization solution - non-X11 guest utilities