You've lost all your library files. It may be easier to just backup your important files and reinstall your system. The harder way is to reinstall the lost files. At the very least, you have to reinstall[list=1][*]libc6 [*]libpam-modules [*]libpam0g[*]libdb1-compat[*]libcap1[*]libgcc1[*]libncurses[/list=1] to be able to chroot and login.
Boot your live-cd then run
apt-get -d --reinstall install libc6 libpam-modules libacl1 \
libpam0g libdb1-compat libcap1 libgcc1 libncurses
Extract the packages into a temporary directory
dpkg -x /var/cache/apt/archives/package-name temp-directory
Then move the files back to /lib.
mount /dev/hda6 /mnt/debian
mv * /mnt/debian/lib
But then you'll still have the task of reinstalling the other library files that are missing.