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Diffstat (limited to 'chapter08/fstab.xml')
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diff --git a/chapter08/fstab.xml b/chapter08/fstab.xml index 015e26bc6..969d306fb 100644 --- a/chapter08/fstab.xml +++ b/chapter08/fstab.xml @@ -7,6 +7,13 @@ <title>Creating the /etc/fstab File</title> <?dbhtml filename="fstab.html"?> +<indexterm zone="ch-bootable-fstab"><primary sortas="e-/etc/fstab">/etc/fstab</primary></indexterm> + +<para>The <filename>/etc/fstab</filename> file is used by some +programs to determine where file systems are to be mounted by default, +which must be checked, and in which order. Create a new file systems +table like this:</para> + <screen><userinput>cat > /etc/fstab << "EOF" <literal># Begin /etc/fstab @@ -22,4 +29,39 @@ shm /dev/shm tmpfs defaults 0 0 # End /etc/fstab</literal> EOF</userinput></screen> +<para>Replace <replaceable>[xxx]</replaceable>, +<replaceable>[yyy]</replaceable>, and <replaceable>[fff]</replaceable> +with the values appropriate for the system, for example, <filename +class="partition">hda2</filename>, <filename +class="partition">hda5</filename>, and <systemitem +class="filesystem">ext2</systemitem>. For details on the six +fields in this file, see <command>man 5 fstab</command>.</para> + +<para>When using a journalling file system, the <parameter>1 +1</parameter> at the end of the line should be replaced with +<parameter>0 0</parameter> because such a partition does not need to +be dumped or checked.</para> + +<para>The <filename class="directory">/dev/shm</filename> mount point +for <systemitem class="filesystem">tmpfs</systemitem> is included to +allow enabling POSIX-shared memory. The kernel must have the required +support built into it for this to work (more about this is in the next +section). Please note that very little software currently uses +POSIX-shared memory. Therefore, consider the <filename +class="directory">/dev/shm</filename> mount point optional. For more +information, see +<filename>Documentation/filesystems/tmpfs.txt</filename> in the kernel +source tree.</para> + +<para>There are other lines which may be added to the +<filename>/etc/fstab</filename> file. One example is a line for USB +devices:</para> + +<screen>usbfs /proc/bus/usb usbfs devgid=14,devmode=0660 0 0 </screen> + +<para>This option will only work if <quote>Support for Host-side +USB</quote> and <quote>USB device filesystem</quote> are compiled into +the kernel (not as a module).</para> + </sect1> + |