sol11 export lofs to sol10 zones

it seems like all i do is work with solaris.  really i don't.

sometimes, for reasons beyond me, solaris 10 zones do not like to have sunstudio directories mounted to them despite being explicitely defined in their zonecfg file.
permissions or something with -b.  whatever.

to see if the mounts will actually work, let's do things the long-handed way.  if they do work, then let's add a vfstab stanza on the global zone box.

1. identify the directory to be mounted from the global zone to the zone.
/opt/SUNWspro

2.  create mount target on non-global zone.
# zlogin solzone
# mkdir -p /opt/SUNWspro

this can also be done on the global zone system:
# mkdir -p /zones/solzone/root/opt/SUNWspro

3.  mount it!  global zone
# mount -o ro -F lofs /mnt/olddisk /zones/ngzname/root/mnt/olddisk

4. Verify mount point is up and running
4a. From global

# mount |grep /opt/SUNWspro
/zones/solzone/root/opt/SUNWspro on /opt/SUNWspro read/write/setuid/devices/rstchown/zone=solzone/nozonemod/sharezone=19/dev=3910002 on Mon Feb 25 11:11:11 2013

4b. From non-global zone

# df -h /mnt/olddisk
/opt/SUNWspro on /opt/SUNWspro read/write/setuid/devices/rstchown/zone=solzone/nozonemod/sharezone=19/dev=3910002 on Mon Feb 25 11:11:11 2013

Super.  Add that vfstab entry.

vfstab entry
/opt/SUNWspro   -       /zones/solzone/root/opt/SUNWspro      lofs    -       yes     -