~$ sudo apt-cache policy virtualbox
virtualbox:
  Installiert: (keine)
  Kandidat:    4.1.12-dfsg-2ubuntu0.1
  Versionstabelle:
     4.1.12-dfsg-2ubuntu0.1 0
        500 http://de.archive.ubuntu.com/ubuntu/ precise-updates/universe amd64 Packages
     4.1.12-dfsg-2 0
        500 http://de.archive.ubuntu.com/ubuntu/ precise/universe amd64 Packages
$ ls /etc/init.d
acpid              hwclock                      rfkill-restore
acpi-support       hwclock-save                 rfkill-store
alsa-restore       irqbalance                   rsync
alsa-store         kerneloops                   rsyslog
anacron            killprocs                    saned
apache2            lightdm                      sendsigs
apparmor           modemmanager                 setvtrgb
apport             module-init-tools            single
atd                networking                   skeleton
avahi-daemon       network-interface            speech-dispatcher
binfmt-support     network-interface-container  stop-bootlogd
bluetooth          network-interface-security   stop-bootlogd-single
bootlogd           network-manager              sudo
brltty             ondemand                     tomcat7
console-setup      plymouth                     udev
cron               plymouth-log                 udev-fallback-graphics
cryptdisks         plymouth-splash              udev-finish
cryptdisks-early   plymouth-stop                udevmonitor
cryptdisks-enable  plymouth-upstart-bridge      udevtrigger
cryptdisks-udev    postgresql                   ufw
cups               pppd-dns                     umountfs
dbus               procps                       umountnfs.sh
dmesg              pulseaudio                   umountroot
dns-clean          rc                           unattended-upgrades
failsafe-x         rc.local                     urandom
friendly-recovery  rcS                          whoopsie
grub-common        README                       winbind
halt               reboot                       x11-common
hostname           resolvconf