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66 lines
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<!Converted with LaTeX2HTML 95.1 (Fri Jan 20 1995) by Nikos Drakos (nikos@cbl.leeds.ac.uk), CBLU, University of Leeds >
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<TITLE>4.11 What To Do In An Emergency</TITLE>
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<BR> <HR><A NAME=tex2html4188 HREF="node192.html"><IMG ALIGN=BOTTOM ALT="next" SRC="next_motif.gif"></A> <A NAME=tex2html4186 HREF="node155.html"><IMG ALIGN=BOTTOM ALT="up" SRC="up_motif.gif"></A> <A NAME=tex2html4182 HREF="node190.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="previous_motif.gif"></A> <A NAME=tex2html4190 HREF="node1.html"><IMG ALIGN=BOTTOM ALT="contents" SRC="contents_motif.gif"></A> <A NAME=tex2html4191 HREF="node250.html"><IMG ALIGN=BOTTOM ALT="index" SRC="index_motif.gif"></A> <BR>
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<B> Next:</B> <A NAME=tex2html4189 HREF="node192.html">4.11.1 Recovering using a </A>
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<B>Up:</B> <A NAME=tex2html4187 HREF="node155.html">4 System Administration</A>
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<B> Previous:</B> <A NAME=tex2html4183 HREF="node190.html">4.10.2 Setting the hostname</A>
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<BR> <HR> <P>
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<H1><A NAME=SECTION006110000000000000000>4.11 What To Do In An Emergency</A></H1>
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<P>
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<A NAME=5097> </A>
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<A NAME=5098> </A>
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On some occasions, the system administrator will be faced with the
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problem of recovering from a complete disaster, such as
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forgetting the root password or trashing filesystems. The best advice
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is, <em>don't panic.</em> Everyone makes stupid mistakes---that's the
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best way to learn about system administration: the hard way.
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<P>
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Linux is not an unstable version of UNIX. In fact, I have had
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fewer problems with system hangs than with commercial
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versions of UNIX on many platforms. Linux also benefits from a
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strong complement of wizards who can help you get out of a bind.
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<P>
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The first step in investigating any problem is
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to attempt to fix it yourself. Poke around, see how things work.
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Too much of the time, a system administrator will post a desperate
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plea for help before looking into the problem at all. Most of the
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time, you'll find that fixing problems yourself is actually very
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easy. It is the path to guruhood.
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<P>
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There are very few cases where reinstalling the system from
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scratch is necessary. Many new users accidentally delete some
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essential system file, and immediately reach for the installation
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disks. This is not a good idea. Before taking such drastic measures,
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investigate the problem and ask others to help fix things up. In
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almost all cases, you can recover your system from a maintenance
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diskette.
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<P>
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<BR> <HR>
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<UL>
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<LI> <A NAME=tex2html4192 HREF="node192.html#SECTION006111000000000000000">4.11.1 Recovering using a maintenance diskette</A>
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<LI> <A NAME=tex2html4193 HREF="node193.html#SECTION006112000000000000000">4.11.2 Fixing the root password</A>
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<LI> <A NAME=tex2html4194 HREF="node194.html#SECTION006113000000000000000">4.11.3 Fixing trashed filesystems</A>
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<LI> <A NAME=tex2html4195 HREF="node195.html#SECTION006114000000000000000">4.11.4 Recovering lost files</A>
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<LI> <A NAME=tex2html4196 HREF="node196.html#SECTION006115000000000000000">4.11.5 Fixing trashed libraries</A>
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</UL>
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<BR> <HR><A NAME=tex2html4188 HREF="node192.html"><IMG ALIGN=BOTTOM ALT="next" SRC="next_motif.gif"></A> <A NAME=tex2html4186 HREF="node155.html"><IMG ALIGN=BOTTOM ALT="up" SRC="up_motif.gif"></A> <A NAME=tex2html4182 HREF="node190.html"><IMG ALIGN=BOTTOM ALT="previous" SRC="previous_motif.gif"></A> <A NAME=tex2html4190 HREF="node1.html"><IMG ALIGN=BOTTOM ALT="contents" SRC="contents_motif.gif"></A> <A NAME=tex2html4191 HREF="node250.html"><IMG ALIGN=BOTTOM ALT="index" SRC="index_motif.gif"></A> <BR>
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<B> Next:</B> <A NAME=tex2html4189 HREF="node192.html">4.11.1 Recovering using a </A>
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<B>Up:</B> <A NAME=tex2html4187 HREF="node155.html">4 System Administration</A>
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<B> Previous:</B> <A NAME=tex2html4183 HREF="node190.html">4.10.2 Setting the hostname</A>
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<BR> <HR> <P>
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<BR> <HR>
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<P><ADDRESS>
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<I>Matt Welsh <BR>
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mdw@sunsite.unc.edu</I>
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</ADDRESS>
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