Installing Dropbox in Oneiric Ocelot 11.10 works, but not completely. The integration in Nautilus is broken because of the new GTK system thatś is not recogknized by the dropbox installer. The Dropbox installer installs itself into the Nautilus extensions 2.0 folder while Nautilus 3.x is using the extensions 3.0 folders for the icons and context menu. To fix this, we just have to create a symlink between the respective files in extensions 2.0 and 3.0.
Open a terminal and type:
sudo ln -s /usr/lib/nautilus/extensions-2.0/libnautilus-dropbox.so /usr/lib/nautilus/extensions-3.0/libnautilus-dropbox.so sudo ln -s /usr/lib/nautilus/extensions-2.0/libnautilus-dropbox.a /usr/lib/nautilus/extensions-3.0/libnautilus-dropbox.a sudo ln -s /usr/lib/nautilus/extensions-2.0/libnautilus-dropbox.la /usr/lib/nautilus/extensions-3.0/libnautilus-dropbox.la
That’s it. Now you should see the sync icon and the Dropbox entry in the context menu when you open your dropbox folder.