On Tue, Apr 29, 2008 at 04:13:58PM +0100, Ceri Davies wrote:
> > Hmmm... I didn't realize that ZFS doesn't support lofi. That seems like
> > a fairly severe shortcoming, particularly given the push towards ZFS
> > root. (On a system with ZFS root, its likely there won't be *any* ufs,
> > etc. filesystems.)
> >
> > Are there any plans afoot that you're aware of to address this shortcoming?
>
> I don't think that sentence means what you think it means. You can
> certainly create a lofi device backed by a file on a ZFS filesystem.
> In fact, since you can also create a zpool on a lofi device, I think it
> just means that you can't put a ZFS/lofi combination in vfstab.
Or mount a file directly. It's not a shortcoming as such, it just works
differently. That is, the nearest ZFS equivalent of this is:
thewhip:/ # zpool import -d /var/tmp
pool: mypool
id: 5292688193707361217
state: ONLINE
action: The pool can be imported using its name or numeric identifier.
config:
mypool ONLINE
/var/tmp/mypool.img ONLINE
thewhip:/ # zpool import -d /var/tmp mypool
thewhip:/ # zpool list mypool
NAME SIZE USED AVAIL CAP HEALTH ALTROOT
mypool 123M 110K 123M 0% ONLINE -
and 'zpool export' for "unmount".
regards
john
