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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@1011 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
35 lines
1.6 KiB
XML
35 lines
1.6 KiB
XML
<sect2>
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<title>Command explanations</title>
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<para><userinput>--enable-static-link:</userinput> This configure
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option causes Bash to be linked statically</para>
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<para><userinput>--prefix=$LFS/usr:</userinput> This configure option installs
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all of Bash's files under the $LFS/usr directory, which becomes the /usr
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directory after the user chroot'ed into $LFS or when he rebooted
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the system into LFS.</para>
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<para><userinput>--bindir=$LFS/bin:</userinput> This installs the executable
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files in $LFS/bin. We do this because we want bash to be in /bin, not in
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/usr/bin. One reason being: the /usr partition might be on a separate
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partition which has to be mounted at some point. Before that partition is
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mounted a user needs and will want to have bash available (it will be hard to
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execute the boot scripts without a shell for instance).</para>
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<para><userinput>ln -sf bash sh:</userinput> This command creates the sh
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symlink that points to bash. Most scripts run themselves via 'sh'
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(invoked by the #!/bin/sh as the first line in the scripts) which
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invokes a special bash mode. Bash will then behave (as closely as
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possible) as the original Bourne shell.</para>
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<para>The <userinput>&&</userinput>'s at the end of every line cause
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the next command to be executed only if the previous command exists
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with a return value of 0 indicating success. In case all of these
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commands are copy&pasted
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on the shell, is is important to be ensured that if
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./configure fails, make isn't being executed and, likewise, if make fails,
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that make install isn't being executed, and so forth.</para>
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</sect2>
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