Chroot broken? [solved]

Question

I am not sure if this is something that I have done or if this is something that have happened after a pacman -Suy . One guess is that this happened after an update of the system since it doesn't work on my user-mode linux ether and that system was created recently (5 hours ago) through bootstraping. Problem is that I don't know if chroot can work inside UML and if it can't then it seems more likely that I personally have somehow broken chroot.
My question is if there are others that have problems with chroot, because it seems a bit stupid to fill a bug report if this problem only exist on my system. 
# chroot /mnt /bin/bash
chroot: cannot run command `/bin/bash': No such file or directory
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I forgot to mention that I do have bash and it is in /bin
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Answer 1

LB06 wrote:Do you have /mnt/bin/bash?
Doesn't entirely solve the problem, but it's in the right direction. I had to add some more files and I don't know which where needed since I solved it with  mount --bind . But somehow I remeber doing a chroot in the past without having /whereever/bin/bash . If I remeber correctly I could chroot into an empty directory, not much to do there but at least it was possible. But this could be something that I am remebering incorrectly. At least the problem is solved and thanks for the help.
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I had to check some old manuals and it didn't contain a chroot into an empty directory. I guess my memories are playing with me.
At least the problem is solved, thanks again. I am going to mark this thread as solved.
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