On Mon, Jul 27, 2009 at 12:51:13AM -0700, Axelle Apvrille wrote: > - understand what's in that old 7G ?
Mounting it and taking a look is probably the best thing. > - understand why the new environment only takes 3G This will be due mostly to shared blocks between the two boot environments. Not all files change between releases, so we don't update them, and they get shared. Also note the REFER column -- that's the size the dataset would be if it stood alone. > - possibly mount the old 7G to check what's inside ? I'm surprised it is > said to be mounted on / It's not actually mounted; the display is confusing. I thought I'd filed a bug for this, but I guess not. Anyway, MOUNTPOINT refers to where it would be mounted if you ran "zfs mount <dataset>", not where it is actually mounted. But you can mount the BE with "beadm mount opensolaris /some/where". > - understand what beadm destroy actually destroys ! It'll just destroy the dataset rpool/ROOT/opensolaris. It won't delete any of the blocks shared between the two datasets, so you won't get back all of the disk space it says it's sharing, but you'll likely save a fair amount of space. Danek
