[i]The fact is that you can ALWAYS recover your original boot environment. The most painful thing that you'd ever need to do is re-install grub to get the system to point at your old BE, and that's the worst case scenario. And that's why it is "SAFE".[/i]
It is a moot question. Just read the respective archive, and you will find plenty of counter-examples. And not only mine. It can't be really safe, because the old BE is modified. Of course, one could imagine a system, a different one, that boots an updated, cloned, BE from elsewhere. But not from within a slice. Uwe -- This message posted from opensolaris.org