\subsection{Workstations: Some Differences}

{\Large This is a complete LIE!}
There are some differences between the new workstations and timesharing
machines when it comes to SIPB software.  Distribution of software on
timesharing machines was handled by the SIPB.  Importing SIPB software
onto a workstation is done by each user who wants it, each time they log
in.  The SIPB still maintains the software and responds to bug reports;
but the software won't be on the workstation when you log in.  You
will have to bring it up, just as you would bring up a course
pack.\footnote{See the Athena document {\bf Essential Workstations} for
help with this.}

To see if your workstation is set up correctly or not, do this:  {\tt ls
/usr/sipb}.  If the machine responds with {\tt /usr/sipb not found}, you
will have to do a bit more work.

If your machine has to be fixed, use the following command:
\begin{verbatim}
up -c vssipb 7 m4-035-w.mit.edu r /usr/unsupported/sipb
\end{verbatim}
then run {\tt /usr/unsupported/fix-sipb}.  This command will make the
directory {\it /usr/sipb}, edit the file {\it /etc/rvdtab}, and do a
couple other things.  When it finishes, the SIPB software should be
located in {\it /usr/sipb}, and you should be ready to go.

If the directory /usr/sipb exists, try the command {\tt up vssipb}.  If
the error message
\begin{verbatim}
The RVD pack "vssipb" from server "" is not listed in /etc/rvdtab.
Please specify packs listed in /etc/rvdtab.
\end{verbatim}
appears, simply use the long command given in the previous path, except
for substituting {\it /usr/sipb} for {\it /usr/unsupported/sipb}.
Running {\tt /usr/sipb/fix-sipb} will ensure that you can use the short
form on this workstation next time.

IBM PC/RT users should substitute {\bf rtsipb} for the {\bf vssipb}
above.

Also, remember that the {\tt /usr/sipb} software is a cleaned-up,
slightly reorganized version of the {\tt /usr/unsupported/sipb}
available on timesharing machines.  In particular, your PATH variable
should include the directory {\tt /usr/sipb/bin}, which is where
executable programs have been moved.