You can clone with
Installing Barracuda and Octopus
$ cd;wget -q -U iCab http://files.aegir.cc/BOA.sh.txt;bash BOA.sh.txt
$ boa in-head public server.mydomain.org my@email o1
Now simply watch the progress and choose some platforms to include. Done!
And how to upgrade Barracuda and all Octopus instances?
$ barracuda up-head
$ octopus up-head all