I agree with Thorsten. However you don't need to do that; in Precise 12.04 - gksu nautilus works for me. And no, I didn't try any of the workarounds mentioned in this bug report.
$ locate libnautilus-gksu.so is nowhere to be found. :/usr/lib/nautilus$ ls -al total 60 drwxr-xr-x 3 root root 4096 Apr 9 16:09 . drwxr-xr-x 197 root root 36864 Apr 14 10:57 .. drwxr-xr-x 2 root root 4096 Apr 14 11:10 extensions-3.0 -rwxr-xr-x 1 root root 13996 Apr 5 08:52 nautilus-convert-metadata gksu-polkit is not installed. Interesting twist: when nautilus-open-terminal is installed the results of 'gksu nautilus' use that extension: $ gksu nautilus Initializing nautilus-open-terminal extension Shutting down nautilus-open-terminal extension $ ls -al /usr/lib/nautilus/extensions-3.0 total 552 drwxr-xr-x 2 root root 4096 Apr 14 11:29 . drwxr-xr-x 3 root root 4096 Apr 9 16:09 .. -rw-r--r-- 1 root root 34636 Apr 10 18:49 libdeja-dup.so -rw-r--r-- 1 root root 13592 Mar 26 18:32 libevince-properties-page.so -rw-r--r-- 1 root root 26240 Dec 10 06:15 libnautilus-actions-menu.so -rw-r--r-- 1 root root 17964 Dec 10 06:15 libnautilus-actions-tracker.so -rw-r--r-- 1 root root 34808 Apr 10 16:53 libnautilus-brasero-extension.so -rw-r--r-- 1 root root 13780 Mar 26 18:23 libnautilus-fileroller.so -rw-r--r-- 1 root root 17996 Dec 10 07:08 libnautilus-open-terminal.so -rw-r--r-- 1 root root 9636 Apr 5 08:52 libnautilus-sendto.so -rw-r--r-- 1 root root 42872 Dec 12 00:26 libnautilus-share.so -rw-r--r-- 1 root root 63872 Apr 11 12:16 libnautilus-ubuntuone.so -rw-r--r-- 1 root root 42252 Jan 8 19:24 libnautilus-wipe.so -rw-r--r-- 1 root root 210196 Mar 29 00:13 libtotem-properties-page.so when 'nautilus-open-terminal extension' not installed 'gksu nautilus' runs & works as usual. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/817383 Title: nautilus-gksu fails to work, needs a re-build to install libnautilus- gksu.so to /usr/lib/nautilus/extensions-3.0 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gksu/+bug/817383/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs