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+<TITLE>Emergency boot floppies</TITLE>
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+<B> Next:</B> <A NAME="tex2html1217" HREF="node73.html">init</A>
+<B>Up:</B> <A NAME="tex2html1215" HREF="node66.html">Boots And Shutdowns</A>
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+<BR> <P>
+<H1><A NAME="SECTION00760000000000000000">Emergency boot floppies</A></H1>
+<P>
+ It is not always possible to boot a computer from the hard disk.
+ For example, if you make a mistake in configuring LILO, you might
+ make your system unbootable. For these situations, you need an
+ alternative way of booting that will always work (as long as the
+ hardware works). For typical PC's, this means booting from the
+ floppy drive.
+<A NAME="2091">&#160;</A>
+<A NAME="2092">&#160;</A>
+<P>
+ Most Linux distributions allow one to create an <b>emergency
+ boot floppy</b> during installation. It is a good idea to do this.
+ However, some such boot disks contain only the kernel, and assume
+ you will be using the programs on the distribution's installation
+ disks to fix whatever problem you have. Sometimes those programs
+ aren't enough; for example, you might have to restore some files
+ from backups made with software not on the installation disks.
+<A NAME="2094">&#160;</A>
+<A NAME="2095">&#160;</A>
+<A NAME="2096">&#160;</A>
+<P>
+ Thus, it might be necessary to create a custom root floppy as well.
+ The <em>Bootdisk HOWTO</em> by Graham Chapman ([<A HREF="node113.html#bootdisk-howto">Cha</A>])
+ contains instructions for doing this.
+ You must, of course, remember to keep your emergency boot
+ and root floppies up to date.
+<A NAME="2099">&#160;</A>
+<P>
+ You can't use the floppy drive you use to mount the root floppy
+ for anything else. This can be inconvenient if you only have one
+ floppy drive. However, if you have enough memory, you
+ can configure your boot floppy to load the root
+ disk to a ramdisk (the boot floppy's kernel needs to be specially
+ configured for this).
+ Once the root floppy has been loaded into the ramdisk, the
+ floppy drive is free to mount other disks.
+<A NAME="2100">&#160;</A>
+<P>
+<BR> <HR>
+<P><ADDRESS>
+<I>Lars Wirzenius <BR>
+Sat Nov 15 02:32:11 EET 1997</I>
+</ADDRESS>
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