[Serusers] ser & mysql: Starting SER : PID file /var/run/ser.pid does not exist -- SER start failed

Hi all: I recently did an install of ser from cvs, and trying to configure ser.cfg from /usr/lib/etc I found an issue when I try to run ser from serctl. This is a stdout: [root@sph1 ser]# serctl start Starting SER : PID file /var/run/ser.pid does not exist -- SER start failed [root@sph1 ser]# This only happen when I turn on mysql.so loadmodule. What can be wrong? I missing something? Thanks in advance. Regards, Gus The ser.cfg shows: /* Uncomment these lines to enter debugging mode */ fork=no log_stderror=yes check_via=no # (cmd. line: -v) dns=no # (cmd. line: -r) rev_dns=no # (cmd. line: -R) #port=5060 #children=4 fifo="/tmp/ser_fifo" # ------------------ module loading ---------------------------------- # Uncomment this if you want to use SQL database loadmodule "/usr/local/lib/ser/modules/mysql.so" loadmodule "/usr/local/lib/ser/modules/sl.so" loadmodule "/usr/local/lib/ser/modules/tm.so" loadmodule "/usr/local/lib/ser/modules/rr.so" loadmodule "/usr/local/lib/ser/modules/maxfwd.so" loadmodule "/usr/local/lib/ser/modules/usrloc.so" loadmodule "/usr/local/lib/ser/modules/registrar.so" loadmodule "/usr/local/lib/ser/modules/textops.so" # Uncomment this if you want digest authentication # mysql.so must be loaded ! #loadmodule "/usr/local/lib/ser/modules/auth.so" #loadmodule "/usr/local/lib/ser/modules/auth_db.so" # ----------------- setting module-specific parameters --------------- # -- usrloc params -- modparam("usrloc", "db_mode", 0)