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<TITLE>The Answer Guy 36:
Using only 64Mb out of 128Mb Available
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<H4>"The Linux Gazette...<I>making Linux just a little more fun!</I>"</H4>
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<H4>By James T. Dennis,
<a href="mailto:answerguy@ssc.com">answerguy@ssc.com</a><BR>
Starshine Technical Services,
<A HREF="http://www.starshine.org/">http://www.starshine.org/</A>
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<!-- begin 60 -->
<H3 align="left"><img src="../../gx/dennis/qbubble.gif" height="50" width="60"
alt="(?) " border="0">
Using only 64Mb out of 128Mb Available
</H3>
<p><strong>From Terry Singleton on Fri, 18 Dec 1998
</strong></p>
<!-- ::
More on:
Using only 64Mb out of 128Mb Available
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<P><STRONG><IMG SRC="../../gx/dennis/qbub.gif" ALT="(?)"
HEIGHT="28" WIDTH="50" BORDER="0"
>
Thanks Jim.I added the line as you suggested, however it did not seem to
<EM>take</EM> am I supposed to be it under the boot image section
itself? Memory is still 64000av.
</STRONG></P>
<BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" alt="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
>
Sorry, I should have been more detailed. You need
to add this <tt>append=</tt> directive to each of the stanzas to
which it applies. (You could have a couple of stanzas
that referred to reduced memory configuration if you were
a software developer, tester or reviewer so that you could
test a package's behaviour under varying memory constraints).
</BLOCKQUOTE>
<P><STRONG><IMG SRC="../../gx/dennis/qbub.gif" ALT="(?)"
HEIGHT="28" WIDTH="50" BORDER="0"
>
This is what I have:
</STRONG></P>
<pre><strong> boot=/dev/sda
map=/boot/map
install=/boot/boot.b
prompt
timeout=50
append="mem=128M"
image=/boot/vmlinuz-2.0.34-0.6
label=linux
root=/dev/sda1
initrd=/boot/initrd-2.0.34-0.6.img
read-only
</strong></pre><P><STRONG>
should it be:
</STRONG></P>
<pre><strong> boot=/dev/sda
map=/boot/map
install=/boot/boot.b
prompt
timeout=50
image=/boot/vmlinuz-2.0.34-0.6
label=linux
root=/dev/sda1
initrd=/boot/initrd-2.0.34-0.6.img
read-only
append="mem=128M"
</strong></pre><BLOCKQUOTE><IMG SRC="../../gx/dennis/bbub.gif" alt="(!)"
HEIGHT="28" WIDTH="50" BORDER="0"
>
Yes.
</BLOCKQUOTE>
<BLOCKQUOTE>
(Also remember to re-run <TT>/sbin/lilo</TT> to read this
config file and build the new boot blocks and maps
therefrom).
</BLOCKQUOTE>
<BLOCKQUOTE>
Incidentally it would have been quicker and reasonably
safe (in this case) to just try the experiement. It
should have worked and you'd have gotten your answer
much quicker.
</BLOCKQUOTE>
<BLOCKQUOTE>
I can understand a degree of hesitation about experimenting
with the boot blocks and partition tables (a data structure
that's stored in the the same block as the MBR first stage
boot block). Obviously a mistake means that you can't
boot at all.
</BLOCKQUOTE>
<BLOCKQUOTE>
However, it's wise to have a backup <em>and a working rescue
floppy</em> and to practice using them before you make any
changes to your <TT>/etc/lilo.conf.</TT>
</BLOCKQUOTE>
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<P> <hr> <P>
<H5 align="center"><a href="http://www.linuxgazette.com/ssc.copying.html"
>Copyright ©</a> 1999, James T. Dennis
<BR>Published in <I>The Linux Gazette</I> Issue 36 January 1999</H5>
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