There are a number of files that launchpad-buildd needs to be updating in the chroot before it starts the build:
/etc/hostname (says invalid, could stay that way, i expect)
/etc/hosts (needs an entry for the hostname (hostname --short and --fqdn) pointing to 127.0.1.1)
/etc/resolv.conf (should match the hosts /etc/resolv.conf)
There are a number of files that launchpad-buildd needs to be updating in the chroot before it starts the build:
/etc/hostname (says invalid, could stay that way, i expect)
/etc/hosts (needs an entry for the hostname (hostname --short and --fqdn) pointing to 127.0.1.1)
/etc/resolv.conf (should match the hosts /etc/resolv.conf)
possibly others.