What to do after "rm -r /usr"?

[news.spiegl@kascada.com (Andy Spiegl)]

Oh, boy!  A friend just called me and said he did a
"rm -r /usr" by mistake.  He did stop it after a while,
though, so that he can at least still do a little bit
on his system.

Now, he asked me, what he should do in order to get back
to a stable system again.  I suggested letting dselect
install all packages again.  But how can he make dselect
think that the packages aren't installed yet??

Or is there a better method?  Please help me helping him.
BTW, he has "bo" installed.

Thanks so much in advance!
 Andy.
____________________________________________________________________
 Andy Spiegl, University of Technology, Muenchen, Germany
 E-Mail: spiegl@Appl-Math.TU-Muenchen.de OR: Andy.Spiegl@WriteMe.com
 URL:    http://www.appl-math.tu-muenchen.de/~spiegl
 PGP fingerprint: B8 48 24 7B DB 96 6F 1C  D9 6D 8E 6C DB C2 E7 E9
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