Fails to install core packages for Lucid

Binary package hint: debootstrap

I'm writing a few scripts to automate the processes described on this page:

https://help.ubuntu.com/community/LiveCDCustomizationFromScratch

When I run debootstrap and specify karmic, the chroot installs fine. But when I specify lucid, it fails with the error:

W: Failure trying to run: chroot /home/myuser/live_cd_images/server/work/chroot dpkg --force-depends --install /var/cache/apt/archives/libc6_2.11.1-0ubuntu7_i386.deb

Is something wrong with the repository?

I'll attach my setup.sh and a script log.

Regards,
Adam J Richardson

===

$ lsb_release -rd
Description: Ubuntu 10.04.1 LTS
Release: 10.04

$ apt-cache policy debootstrap
debootstrap:
  Installed: 1.0.20ubuntu1
  Candidate: 1.0.20ubuntu1
  Version table:
 *** 1.0.20ubuntu1 0
        500 http://archive.ubuntu.com/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status