I know this is a very old issue but I ran into this today and sorted it out. *"/opt/gemstone/locks" is missing* You need to manually create this path to get it to work -- View this message in context: http://forum.world.st/Multi-OODB-version-on-Mac-Book-tp3546885p4808248.html Sent from the GLASS mailing list archive at Nabble.com.