Hy all, recently I upgraded to S10U8 a T5120 using LU. The system had a zones configured and at time of upgrade procedure the zones was still alive and worked fine. The LU procedure was ended successfully. Zones on the system was installed in a ZFS filesystem. Here the result at the end of LU (ABE-from: s10Aug2007, ABE-to: s10Set2009): # zfs list NAME USED AVAIL REFER MOUNTPOINT tank/zones/zone01 69.8M 52.9G 268M /opt/zones/zone01 tank/zones/zone01-s10Aug2007 5.74G 52.9G 5.74G /opt/zones/zone01-s10Aug2007 tank/zones/zone01-s10Aug2007 at s10Set2009 3.75M - 5.74G - I successfully destroyed the clone and snapshot as: # zfs get origin: NAME PROPERTY VALUE SOURCE tank/zones/zone01 origin tank/zones/zone01-s10Aug2007 at s10Set2009 - tank/zones/zone01 at s10Set2009 origin - - tank/zones/zone01-s10Aug2007 origin tank/zones/zone01 at s10Set2009 - # zfs promote tank/zones/zone01 # zfs destroy tank/zones/zone01-s10Aug2007 # zfs destroy tank/zones/zone01 at s10Set2009 At the end: # zfs list NAME USED AVAIL REFER MOUNTPOINT tank/zones/zone01 268M 59.7G 268M /opt/zones/zone01 It''s that normal after a LU the zfs filesystem must be promoted manually? I''t depend that in case of roll-back (booting the system to ABE-old) it''s needed to have the previous state? I can''t verify configuration in the ABE old the zone-path and zfs filesystem the previuos filesystem is "tank/zones/zone01-s10Aug2007" (zfs) with mountpoint "/opt/zones/zone01-s10Aug2007", after two weeks of working I destroyed the ABE-old. Thanks Cesare -- Mike Ditka - "If God had wanted man to play soccer, he wouldn''t have given us arms." - http://www.brainyquote.com/quotes/authors/m/mike_ditka.html