\documentstyle {article}

%\setlength{\textwidth}{7.25in}      % text width
\addtolength{\topmargin}{-0.5in}      % move top margin up
\addtolength{\textheight}{+1in}        % text height
%setlength{\headheight}{.5 in}
%setlength{\footheight}{.5 in}
%\setlength{\textheight}{10.0 in}
\setlength{\parindent}{.0 in}
\setlength{\parskip}{.1 in}

\newcommand{\Tau}{{\bf T}}
\newcommand{\TSystemSize} {...}
\newcommand{\TSourceSize} {...}
\newcommand{\TDocumentationSize} {...}
\newcommand{\AegisVersion} {revision 9.2.5}

\begin{document}
\pagestyle{empty}

\begin{center}
  {\LARGE\bf Installing T on an Apollo}
\end{center}

\section{Contents of the Tape}

The distribution tape was written using the following
commands:

\begin{verbatim}
     wbak ~t3/distribution/tsystem/aegis -f 1 -dev M0 -l -wla
     wbak ~t3/distribution/sources       -f 2 -dev M0 -l
     wbak ~t3/distribution/documentation -f 3 -dev M0 -l
\end{verbatim}


The tape contains three WBAK files: 

\begin{itemize}

  \item {\sc tsystem} --- A directory containing executables,
        binaries, {\sc localfs.t}, and the fix file, if any.  This
        is the only WBAK file which needs to be restored in order
        to use \Tau.  The executable files in this directory were
        built using aegis \AegisVersion.

  \item {\sc sources} --- A directory containing the sources for
        the system and compiler.

  \item {\sc documentation} --- A directory containing various documents
        in either TEX or Scribe format.
       
\end{itemize}

The distribution package contains a transcript of the WBAK session.


\section{Installation Procedure}

In order to install T on a new system do the following:

\begin{enumerate}

  \item Restore the first backup file into a directory of your choice using the
        RBAK command. For example, 

{\tt
   \hspace{.5in} RBAK -AS {\it YourDirectory} -f 1 -dev M1 -all -l
}

        will restore the {\sc tsystem} directory to {\it YourDirectory}.
        
  \item Edit the file {\sc localfs.t} to contain the host name and aliases for the
        machine (or file system) on which \Tau\ is being installed.

  \item The {\sc sources} and {\sc documentation} directories need not be
        restored.

\end{enumerate}

\section{Running \Tau}


In order to run \Tau\ the user should define a link in his naming directory
called {\it tsystem} which points at the {\sc tsystem} directory.  
This is because the \Tau\ system uses \verb|~tsystem| to locate both the
{\tt fix} file and the {\tt localfs} file.

To run \Tau\ just type \verb|~tsystem/t3| to the shell prompt.

\end{document}
