<HTML
><HEAD
><TITLE
>Upgrading from a Prior Version of Red Hat Linux</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.40"><LINK
REL="HOME"
TITLE="Red Hat Linux 6.1"
HREF="index.htm"><LINK
REL="UP"
TITLE="Preface"
HREF="ch-intro.htm"><LINK
REL="PREVIOUS"
TITLE="Quick Start Information"
HREF="s1-intro-quick-start.htm"><LINK
REL="NEXT"
TITLE="A Word From the Developers"
HREF="s1-intro-from-dev.htm"></HEAD
><BODY
><DIV
CLASS="NAVHEADER"
><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="3"
ALIGN="center"
>Red Hat Linux 6.1: The Official Red Hat Linux Installation Guide</TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="bottom"
><A
HREF="s1-intro-quick-start.htm"
>Prev</A
></TD
><TD
WIDTH="80%"
ALIGN="center"
VALIGN="bottom"
>Preface</TD
><TD
WIDTH="10%"
ALIGN="right"
VALIGN="bottom"
><A
HREF="s1-intro-from-dev.htm"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="S1-INTRO-UPGRADE"
>Upgrading from a Prior Version of Red Hat Linux</A
></H1
><A
NAME="AEN104"
></A
><P
> The installation process for Red Hat Linux 6.1 includes the ability to
upgrade from prior versions of Red Hat Linux (2.0 through 6.0, inclusive) which
are based on RPM technology. Upgrading your system installs the modular
2.2.x kernel as well as updated versions of the packages that are
installed on your machine. The upgrade process preserves existing
configuration files using a <TT
CLASS="FILENAME"
>.rpmsave</TT
> extension
(e.g., <TT
CLASS="FILENAME"
>sendmail.cf.rpmsave</TT
>) and leaves a log
telling what actions it took in
<TT
CLASS="FILENAME"
>/tmp/upgrade.log</TT
>. As software evolves,
configuration file formats can change, so you should carefully compare
your original configuration files to the new files before integrating
your changes.
</P
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="s1-intro-quick-start.htm"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.htm"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="s1-intro-from-dev.htm"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Quick Start Information</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="ch-intro.htm"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>A Word From the Developers</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>