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diff --git a/chapter05/gzip-exp.xml b/chapter05/gzip-exp.xml new file mode 100644 index 000000000..ceabd4d47 --- /dev/null +++ b/chapter05/gzip-exp.xml @@ -0,0 +1,16 @@ +<sect2> +<title>Command explanations</title> + +<para><userinput>cp $LFS/usr/bin/gunzip $LFS/usr/bin/gzip $LFS/bin && +rm $LFS/usr/bin/gunzip $LFS/usr/bin/gzip:</userinput> The reason we don't +simply use <quote>mv</quote> to move the files to the new location is +because gunzip is a hardlink to gzip. On older distributions you can't +move a hardlink to another partition (and it's very possible that $LFS and +$LFS/usr are seperate partitions). With more recent distributions this +isn't a problem. If you run mv to move hardlinks across partitions it'll +just do a regular <quote>cp</quote> and discard the hardlink. But, we +can't assume that every host distribution has a new enough kernel and +fileutils that works this way.</para> + +</sect2> + |