Nautilus and other packages are patched to support integration with Unity launcher, that's why they link with libunity.
** Changed in: libunity (Ubuntu) Status: Confirmed => Invalid -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to libunity in Ubuntu. Matching subscriptions: dp-libunity https://bugs.launchpad.net/bugs/1224621 Title: Removing libunity9 also removes nautilus and other packages Status in “libunity” package in Ubuntu: Invalid Bug description: $ apt-get -s remove libunity9 The following packages will be REMOVED: brasero brasero-cdrkit deja-dup deja-dup-backend-gvfs deja-dup-backend-ubuntuone empathy indicator-appmenu indicator-sound libbrasero-media3-1 libunity9 mcp-account-manager-uoa nautilus nautilus-sendto nautilus-sendto-empathy nautilus-share rhythmbox-plugin-cdrecorder shotwell telepathy-indicator xchat-indicator ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: libunity9 6.90.2daily13.04.05-0ubuntu1 ProcVersionSignature: Ubuntu 3.8.0-30.44-generic 3.8.13.6 Uname: Linux 3.8.0-30-generic x86_64 ApportVersion: 2.9.2-0ubuntu8.4 Architecture: amd64 Date: Thu Sep 12 20:05:10 2013 InstallationDate: Installed on 2011-10-21 (692 days ago) InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012) MarkForUpload: True SourcePackage: libunity UpgradeStatus: Upgraded to raring on 2013-01-20 (234 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libunity/+bug/1224621/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp