[OpenIndiana-discuss] How to clean old boot version from rpool

[Brogyányi József]

Hi

I'd like to delete old not used boot part from rpool.

rpool/ROOT/openindiana     19.1M  1.24G  6.27G  /
rpool/ROOT/openindiana-1   13.3M  1.24G  6.83G

It shows me if there is a big update then I can not do it because I 
haven't got enough room.
So how do I keep the latest Openindana and how to delete the old one?
Thanks.

Brogyi