reinstalling debian /bin

[kramerjm at gmail.com (James Kramer)]

While working on Xen setup I managed to delete /bin  by using the command
rm -R /bin. I don't think that I can recover the /bin files but I
should be able to reinstall the packages. I have a backup of all my
data files and most config files that were in /etc.  I can boot into a
different debian OS using grub so I can access the partition and
files.  I can chroot the particular partition.  Can someone suggest
how to reinstall the system.  If I do a complete debian reinstalll
from CD on top the partition would it retain my old directories and
files.  I tried to chroot the root partion figuring that I could use
apt-get to reinstall the packages but I can not figure out the proper
way to do it.  Any suggestion would be appreciated.
Thanks in advance
Jay

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