Pls check the below error

root@opensolaris:~# zoneadm -z test install

Publisher: Using opensolaris.org (http://pkg.opensolaris.org/release/).
Image: Preparing at /rpool/zones/test/root.


pkg: image-create: The URI 'http://pkg.opensolaris.org/release/' does not appear to point to a valid pkg server.
Please check the server's address and client's network configuration.
Additional details:

Unable to contact valid package server: http://pkg.opensolaris.org/release/
Encountered the following error(s):
Transport errors encountered when trying to contact depot server. Reported the following errors:
1: Transfer from 'opensolaris.org' timed out: timed out.
2: Transfer from 'opensolaris.org' timed out: timed out.
3: Transfer from 'opensolaris.org' timed out: timed out.
4: Transfer from 'opensolaris.org' timed out: timed out.

ERROR: failed to create image
rm: Unable to remove directory /rpool/zones/test/root: Device busy
zoneadm: zone 'test': '/usr/bin/rm -rf' failed with exit code 2.
zoneadm: test: cleaning up zonepath failed: Empty document

It seems your OpenSolaris box isn't properly connected to the Internet.