I have this problem in my build process whereby the Package grub could not be found. In fact any package after investigating inside the chroot. I think /var/cache/apt must have been nuked somewhere around lh_binary_local-includes.
Workaround I found was to throw in a `apt-get update`. http://git.debian.org/?p=debian-live/config-webc.git;a=blobdiff;f=webconverger/config/chroot_local-hooks/webconverger;h=c36bd15b2c198fbed8d99b7b689209dc77757a27;hp=354f521e003c454106b051fd5581c75ac763f6c9;hb=2b85e0f264f18a7fd78aed6d832630c7ab4b5298;hpb=6593f3eea25bf2987303d4cfbe2d3b5944502629 -- To UNSUBSCRIBE, email to debian-live-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org