situation. A way out is provided where the user can regain control; it
takes the form of the commands Q and X, which are available in the Select
screen.

Q
An override. Forces dselect to ignore the built-in dependencies
and to do what you have specified. The results, of course, will be
on your own head.

X
Use X if you get totally lost. It puts things back the way they
were and exits.

Select screen (dselect) Keys that help you not to get lost (!) are R, U,
and D.

R
Cancels all selections at this level. Does not affect selections
made at the previous level.

U
If dselect has proposed changes and you have made further changes
U will restore dselect's selections.

D
Removes the selections made by dselect, leaving only yours.

An example follows. The boot-floppies package (not an example for
beginners, I know, but it was chosen because it has a lot of dependencies)
depends on these packages: