$ sudo chroot /mnt dpkg --configure -a

 dpkg: dependency problems prevent configuration of libc6-dev:
 libc6-dev depends on libc6 (= 2.7-9ubuntu1); however:
 Version of libc6 on system is 2.7-5ubuntu2.
 dpkg: error processing libc6-dev (--configure):
 dependency problems - leaving unconfigured
 dpkg: dependency problems prevent configuration of libc6-i386:
 libc6-i386 depends on libc6 (= 2.7-9ubuntu1); however:
 Version of libc6 on system is 2.7-5ubuntu2.
 dpkg: error processing libc6-i386 (--configure):
 dependency problems - leaving unconfigured
 Errors were encountered while processing:
 libc6-dev
 libc6-i386