What is the correct way to move the .BuildServer info from one server to another?

I am moving my teamcity server from an XP box to a linux box and followed this procedure
setup teamcity on linux box and get working with the default settings.
shut down windows server using runall.bat -stop
stop tomcat
copy .BuildServer to linux over the .BuildServer folder that the generic setup created
start tomcat

The first error I recieve says the db is locked and in use.  If i delete the lock file it allows me to go forward, but then just churns for 20-30 minutes trying to startup.
What am I doing wrong and what is the proper procedure to accomplish this?
thanks for your help