Creating the /etc/fstab file
In order for certain programs to be able to determine where certain
partitions are supposed to be mounted by default, the /etc/fstab file is
used. Create a new file /etc/fstab containing the
following:
cat > /etc/fstab << "EOF"
# Begin /etc/fstab
# filesystem   mount-point fs-type    options     dump    fsck-order
/dev/*LFS*     /           *fs-type*  defaults    1       1
/dev/*swap*    swap        swap       pri=1       0       0
proc           /proc       proc       defaults    0       0
# End /etc/fstab
EOF
*LFS*, 
*swap*
and *fs-type* have to be replaced with the 
appropriate values (/dev/hda2, /dev/hda5 and reiserfs for example).
When adding a reiserfs partition, the 1 1 at 
the end of the line should be replaced with 0 0.
For more information on the various fields which are in the fstab
file, see man 5 fstab.
There are other lines which you may consider adding to your fstab
file.  One example is the line which you must have if you are using
devpts:
devpts         /dev/pts    devpts     gid=4,mode=620 0    0 
Another example is a line to use if you intend to use USB
devices:
usbdevfs       /proc/bus/usb usbdevfs defaults    0       0
Both of these options will only work if you have the relevant
support compiled into your kernel.