Since ubunut+1 didnt help here is a fix for



A copy of the C library was found in an unexpected directory:
  '/lib/i386-linux-gnu/ld-2.17.so.dpkg-new'
It is not safe to upgrade the C library in this situation;
please remove that copy of the C library or get it out of
'/lib/i386-linux-gnu' and try again.

fix http://forum.ubuntu-it.org/viewtopic.php?f=30&t=541711&sid=588a1d84d0d07e6f5079afd9670b5e54&start=40#p4262699


replace the  name of libc6_2.*(offending).deb with correct name

example
cd /tmp
cp /var/cache/apt/archives/libc6_2.13-20ubuntu5.2_i386.deb.deb /tmp
dpkg-deb --extract libc6_2.13-20ubuntu5.2_i386.deb libc
dpkg-deb --control libc6_2.13-20ubuntu5.2_i386.deb libc/DEBIAN
gedit /tmp/libc/DEBIAN/preinst

comment out 1 line

find the section that follows

        # Output an error message and exit
        echo
        echo "A copy of the C library was found $msg:"
        echo "  '$lib'"
        echo "It is not safe to upgrade the C library in this situation;"
        echo "please remove that copy of the C library or get it out of"
        echo "'$dir' and try again."
        echo
        exit 1
    done
}



 and comment out

        # Output an error message and exit
        echo
        echo "A copy of the C library was found $msg:"
        echo "  '$lib'"
        echo "It is not safe to upgrade the C library in this situation;"
        echo "please remove that copy of the C library or get it out of"
        echo "'$dir' and try again."
        echo
#        exit 1
    done
}

save

dpkg-deb --build libc
sudo dpkg -i libc.deb
sudo apt-get update
sudo apt-get upgrade

if you need to do this from a chroot see
http://ubuntuforums.org/showthread.php?t=2135146

sudo mount /dev/'location of root' /mnt/raring
sudo mount -t proc none /mnt/raring/proc
sudo mount --rbind /sys /mnt/raring/sys
sudo mount --rbind /dev /mnt/raring/dev
sudo mount --rbind /run /mnt/raring/run
sudo chroot /mnt/raring /bin/bash

then the information from above.