Deploying kvm with knife

Just started to test the Chef and I’m trying to deploy a KVM VM .

According to the documentation a template file (*.erb ) would be required .
In my chef installation I found some files located in the
/usr/lib64/ruby/gems/1.8/gems/chef-0.10.10/lib/chef/knife/bootstrap/ directory

for example :

Where I may get ubuntu11.10-gems.erb given in the knife-kvm README ?
The same question regarding a templates for CentOS6/RH6 ?

/Vlad .