in 12.04 there are two different versions of invoke-rc.d in /usr/sbin/
-rwxr-xr-x 1 root root 70 Apr 19 13:47 /usr/sbin/invoke-rc.d
-rwxr-xr-x 1 root root 11308 Jul 26 2012 /usr/sbin/invoke-rc.d.orig
But those files are only on the diskless MDs. On the core there is only one invoke-rc.d in /usr/sbin/.
The ones on the MD are not working. So the (e.g.) the script "StartVDRClient.sh" does not work properly. The two ones one the MDs do not even return an error code (!).
Can someone confirm this is a bug?