These are notes I made while creating a new xvm hypervisor on Precise:

- create schroot with 'sbuild-createchroot /srv/chroot/precise-amd64-sbuild http://mirrors.mit.edu/ubuntu'
- defang init inside the schroot:
{{{
dpkg-divert --local /sbin/initctl
mv /sbin/initctl /sbin/initctl.distrib
ln -s /bin/true /sbin/initctl
}}}
- created /usr/sbin/policy-rc.d inside the chroot, containing:
{{{
#!/bin/sh

exit 101
}}}

- I had to apply the patch from http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=471747 to the version of sbuild in Hardy to make the invirtibuilder work for precise

- Right now, to build from a tag instead of a branch name with the invirtibuilder, you need to specify the commit that the tag points to, with the syntax 
{{{
(tagname)^{} 
}}} 
 I'll fix this.