55 lines
2.3 KiB
HTML
55 lines
2.3 KiB
HTML
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<TITLE>Saving Space mini-HOWTO : Software requirements</TITLE>
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<H2><A NAME="s2">2. Software requirements</A></H2>
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<P>
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<P>You need:
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<P>
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<UL>
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<LI> a fully working Linux system (any version should be OK);
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</LI>
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<LI> the common <CODE>gzip</CODE> compression utility, or alternatively <CODE>bzip2</CODE>
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that you find on
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<A HREF="ftp://sunsite.unc.edu:/pub/Linux/utils/compress">ftp://sunsite.unc.edu:/pub/Linux/utils/compress</A>;
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this tool compresses better than <CODE>gzip</CODE>, but it's also a wee bit slower
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and consumes a lot of memory;
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</LI>
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<LI> the <CODE>upx</CODE> executable compressor, whose home page is at
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<A HREF="http://cdata.tvnet.hu/~ml/upx.html">http://cdata.tvnet.hu/~ml/upx.html</A> and
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<A HREF="http://wildsau.idv.uni-linz.ac.at/mfx/upx.html">http://wildsau.idv.uni-linz.ac.at/mfx/upx.html</A>;
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</LI>
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<LI> the <CODE>zlibc</CODE> package, available on
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<A HREF="ftp://sunsite.unc.edu:/pub/Linux/libs/compression">ftp://sunsite.unc.edu:/pub/Linux/libs/compression</A>. It's
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called <CODE>zlibc-X.X.tar.gz</CODE>, where <CODE>X.X</CODE> is the latest version.
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</LI>
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</UL>
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<P>There are other executable compressors. One is <CODE>gzexe</CODE> (forget it), while
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<CODE>tcx</CODE> was probably the best before <CODE>upx</CODE> became available; yet another
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is <CODE>tzx</CODE>, in theory better than <CODE>tcx</CODE>. The thing is, it screwed
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everything up when I tried it on a spare PC, though I'm not sure if I did
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something wrong. You had better stick with <CODE>upx</CODE>: it's reliable,
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efficient, and very handy.
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<P>There are kernel patches that provide transparent file system compression a
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la Stacker, but as of this writing none of them has yet a reputation for
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stability and reliability. For safety's sake, steer clear.
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