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Cleaning and marking up the fstab section.

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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2859 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
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Alex Gronenwoud 2003-09-21 10:33:48 +00:00
parent 6fae3d4f06
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chapter08/fstab.xml
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<title>Creating the /etc/fstab file</title> <title>Creating the /etc/fstab file</title>
<?dbhtml filename="fstab.html" dir="chapter08"?> <?dbhtml filename="fstab.html" dir="chapter08"?>
<para>In order for certain programs to be able to determine where certain <para>The <filename>/etc/fstab</filename> file is used by some programs to
partitions are supposed to be mounted by default, the /etc/fstab file is determine where partitions are to be mounted by default, which file systems
used. Create a new file <filename>/etc/fstab</filename> containing the must be checked and in which order. Create a new file systems table like
following:</para> this:</para>
<para><screen><userinput>cat &gt; /etc/fstab &lt;&lt; "EOF"</userinput> <para><screen><userinput>cat &gt; /etc/fstab &lt;&lt; "EOF"</userinput>
# Begin /etc/fstab # Begin /etc/fstab
# filesystem mount-point fs-type options dump fsck-order # filesystem mount-point fs-type options dump fsck-order
/dev/*LFS* / *fs-type* defaults 1 1 /dev/xxx / fff defaults 1 1
/dev/*swap* swap swap pri=1 0 0 /dev/yyy swap swap pri=1 0 0
proc /proc proc defaults 0 0 proc /proc proc defaults 0 0
shm /dev/shm tmpfs defaults 0 0 shm /dev/shm tmpfs defaults 0 0
# End /etc/fstab # End /etc/fstab
<userinput>EOF</userinput></screen></para> <userinput>EOF</userinput></screen></para>
<para><userinput>*LFS*</userinput>, <para>Of course, replace <filename>xxx</filename>, <filename>yyy</filename>
<userinput>*swap*</userinput> and <filename>fff</filename> with the values appropriate for your system --
and <userinput>*fs-type*</userinput> have to be replaced with the for example <filename>hda2</filename>, <filename>hda5</filename> and
appropriate values (/dev/hda2, /dev/hda5 and reiserfs for example).</para> <filename>reiserfs</filename>. For all the details on the six fields in this
table, see <userinput>man 5 fstab</userinput>.</para>
<para>When adding a reiserfs partition, the <userinput>1 1</userinput> at <para>When using a reiserfs partition, the <emphasis>1 1</emphasis> at the
the end of the line should be replaced with <userinput>0 0</userinput>.</para> end of the line should be replaced with <emphasis>0 0</emphasis>, as such a
partition does not need to be dumped or checked</para>
<para>A tmpfs mount is added at /dev/shm to comply with Posix shared memory <para>The <filename>/dev/shm</filename> mount point for tmpfs is included to
requirements. For more information, see the file comply with Posix shared memory requirements. For more information on this,
Documentation/filesystems/tmpfs.txt in the kernel source tree.</para> see <filename>Documentation/filesystems/tmpfs.txt</filename> in the kernel
source tree.</para>
<para>For more information on the various fields which are in the fstab <para>There are other lines which you may consider adding to your
file, see <userinput>man 5 fstab</userinput>.</para> <filename>fstab</filename> file. One example is the line which you must have
if you are using devpts:</para>
<para>There are other lines which you may consider adding to your fstab <para><screen>devpts /dev/pts devpts gid=4,mode=620 0 0</screen></para>
file. One example is the line which you must have if you are using
devpts:</para>
<para><screen>devpts /dev/pts devpts gid=4,mode=620 0 0</screen></para>
<para>Another example is a line to use if you intend to use USB <para>Another example is a line to use if you intend to use USB
devices:</para> devices:</para>
<para><screen>usbfs /proc/bus/usb usbfs defaults 0 0</screen></para> <para><screen>usbfs /proc/bus/usb usbfs defaults 0 0</screen></para>
<para>Both of these options will only work if you have the relevant <para>Both of these options will of course only work if you have the relevant
support compiled into your kernel.</para> support compiled into your kernel.</para>
</sect1> </sect1>