Edit the number of sectors per cylinder on the disk.  You may adjust the
number of cylinders by a relative amount by preceding the number
with a + or -, or adjust it by a multiple by preceding the number
with a * or /.

ESC    Cancel all changes to the geometry.
ENTER  Apply changes to the geometry.
TAB    Go on to editing the number of cylinders on the disk.

[0-9]  Use the number keys to enter the number of sectors per
       cylinder of the disk.

+ or - Start entering a value which will be relative to the current
       number of sectors per cylinder  displayed.
* or / Start entering a multiple of the current number of sectors
       per cylinder displayed.


^H     Delete the last character typed.
DEL    Delete the last character typed.

^U     Clear the field.
^W     Clear the field.

U      Undo the current changes to the number of sectors per
       cylinder and redisplay the value that was displayed upon
       entering this field.

    The following modifier is always entered after a number has been
    entered.

=      Apply the current, possibly relative, number to the number of
       sectors per cylinder.
