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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2736 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
58 lines
2.3 KiB
XML
58 lines
2.3 KiB
XML
<sect1 id="ch06-proc">
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<title>Mounting the proc and devpts file systems</title>
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<?dbhtml filename="proc.html" dir="chapter06"?>
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<para>In order for certain programs to function properly, the proc and devpts
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file systems must be available within the chroot environment.
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As a file system can be mounted as many times and in as many places
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as you like, it's not a problem that the these file systems are already
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mounted on your host system -- especially so because they are virtual
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file systems.</para>
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<para>The proc file system is mounted under
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<filename class="directory">/proc</filename> by running the
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following command:</para>
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<para><screen><userinput>mount proc /proc -t proc</userinput></screen></para>
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<para>The devpts file system is mounted to <filename class="directory">/dev/pts
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</filename> by running:</para>
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<para><screen><userinput>mount devpts /dev/pts -t devpts</userinput></screen>
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</para>
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<para>Should this command fail with an error to the effect of:</para>
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<blockquote><screen>filesystem devpts not supported by kernel</screen></blockquote>
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<para>It means that your host system does not support devpts. You have two
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options at this point. You can either not worry about it, in which case some
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of the tests we will run later will fail, or you can use the following command
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from a terminal not in chroot to put your host's pts system into your new
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LFS's filesystem:</para>
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<para><screen><userinput>mount --bind /dev/pts $LFS/dev/pts</userinput></screen>
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</para>
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<para>You might get warning messages from the mount command, such as
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these:</para>
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<blockquote><screen>warning: can't open /etc/fstab: No such file or directory
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not enough memory</screen></blockquote>
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<para>Ignore these, they're just due to the fact that the system
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isn't installed completely yet and some files are missing. The mount itself
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will be successful and that's all we care about at this point.</para>
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<para>The last error (not enough memory) doesn't always show up. It depends
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on your system configuration (such as the host system's Glibc version that was
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used to compile the mount program with).</para>
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<para>Remember, if for any reason you stop working on your LFS, and
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start again later, it's important to check that these filesystems are still
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mounted inside the chroot environment. Otherwise, some programs might
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end up compiled incorrectly.</para>
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</sect1>
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