mirror of https://github.com/tLDP/LDP
54 lines
2.2 KiB
XML
54 lines
2.2 KiB
XML
<sect1 id="ch08-fstab">
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<title>Creating the /etc/fstab file</title>
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<?dbhtml filename="fstab.html" dir="chapter08"?>
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<para>The <filename>/etc/fstab</filename> file is used by some programs to
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determine where partitions are to be mounted by default, which file systems
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must be checked and in which order. Create a new file systems table like
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this:</para>
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<screen><userinput>cat > /etc/fstab << "EOF"</userinput>
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# Begin /etc/fstab
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# filesystem mount-point fs-type options dump fsck-order
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/dev/xxx / fff defaults 1 1
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/dev/yyy swap swap pri=1 0 0
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proc /proc proc defaults 0 0
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devpts /dev/pts devpts gid=4,mode=620 0 0
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shm /dev/shm tmpfs defaults 0 0
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# End /etc/fstab
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<userinput>EOF</userinput></screen>
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<para>Of course, replace <filename>xxx</filename>, <filename>yyy</filename>
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and <filename>fff</filename> with the values appropriate for your system --
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for example <filename>hda2</filename>, <filename>hda5</filename> and
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<filename>reiserfs</filename>. For all the details on the six fields in this
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table, see <userinput>man 5 fstab</userinput>.</para>
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<para>When using a reiserfs partition, the <emphasis>1 1</emphasis> at the
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end of the line should be replaced with <emphasis>0 0</emphasis>, as such a
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partition does not need to be dumped or checked</para>
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<para>The <filename>/dev/shm</filename> mount point for tmpfs is included to
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allow enabling POSIX shared memory. Your kernel must have the required support
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built into it for this to work -- more about this in the next section. Please
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note that currently very little software actually uses POSIX shared memory.
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Therefore you can consider the <filename>/dev/shm</filename> mount point
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optional. For more information, see
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<filename>Documentation/filesystems/tmpfs.txt</filename> in the kernel source
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tree.</para>
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<para>There are other lines which you may consider adding to your
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<filename>fstab</filename> file. One example is a line to use if you intend to
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use USB devices:</para>
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<screen>usbfs /proc/bus/usb usbfs defaults 0 0</screen>
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<para>This option will of course only work if you have the relevant support
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compiled into your kernel.</para>
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</sect1>
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