[Serusers] 2nd try: SER does not start with MySQL

Hi there!!!... Iam newy in SER mailing list, and I have a problem with my SER installation that I saw that other members have before, but I can't find a solution to the issue. I have installed the SER (v0.8.14), all works fine until I add MySQL support to get persistent users. after that, when I run "serctl start" I get this error: ---------------------------------------------------------------- Starting SER : cat: /var/run/ser.pid: No such file or directory started pid() ---------------------------------------------------------------- I have made some test to troubleshot this issue, for exsaplme: remplacing DIR=... with the full path to SER executable in "serctl"... and also I increase the debug level in "ser.cfg" to 7, and I get this output: ---------------------------------------------------------------- MyHost:/etc/ser# ser -c 0(2577) loading module /usr/lib/ser/modules/mysql.so 0(2577) loading module /usr/lib/ser/modules/sl.so 0(2577) loading module /usr/lib/ser/modules/tm.so 0(2577) loading module /usr/lib/ser/modules/rr.so 0(2577) loading module /usr/lib/ser/modules/maxfwd.so 0(2577) loading module /usr/lib/ser/modules/usrloc.so 0(2577) loading module /usr/lib/ser/modules/registrar.so 0(2577) loading module /usr/lib/ser/modules/auth.so 0(2577) loading module /usr/lib/ser/modules/auth_db.so 0(2577) set_mod_param_regex: usrloc matches module usrloc 0(2577) set_mod_param_regex: found <db_mode> in module usrloc [/usr/lib/ser/modules/usrloc.so] 0(2577) set_mod_param_regex: auth_db matches module auth_db 0(2577) set_mod_param_regex: found <calculate_ha1> in module auth_db [/usr/lib/ser/modules/auth_db.so] 0(2577) set_mod_param_regex: auth_db matches module auth_db 0(2577) set_mod_param_regex: found <password_column> in module auth_db [/usr/lib/ser/modules/auth_db.so] 0(2577) set_mod_param_regex: rr matches module rr 0(2577) set_mod_param_regex: found <enable_full_lr> in module rr [/usr/lib/ser/modules/rr.so] 0(2577) find_export: found <mf_process_maxfwd_header> in module maxfwd_module [/usr/lib/ser/modules/maxfwd.so] 0(2577) find_export: found <sl_send_reply> in module sl_module [/usr/lib/ser/modules/sl.so] 0(2577) find_export: found <sl_send_reply> in module sl_module [/usr/lib/ser/modules/sl.so] 0(2577) find_export: found <record_route> in module rr [/usr/lib/ser/modules/rr.so] 0(2577) find_export: found <loose_route> in module rr [/usr/lib/ser/modules/rr.so] 0(2577) find_export: found <t_relay> in module tm [/usr/lib/ser/modules/tm.so] 0(2577) find_export: found <www_authorize> in module auth_db [/usr/lib/ser/modules/auth_db.so] 0(2577) find_export: found <www_challenge> in module auth [/usr/lib/ser/modules/auth.so] 0(2577) find_export: found <save> in module registrar [/usr/lib/ser/modules/registrar.so] 0(2577) find_export: found <lookup> in module registrar [/usr/lib/ser/modules/registrar.so] 0(2577) find_export: found <sl_send_reply> in module sl_module [/usr/lib/ser/modules/sl.so] 0(2577) find_export: found <t_relay> in module tm [/usr/lib/ser/modules/tm.so] 0(2577) find_export: found <sl_reply_error> in module sl_module [/usr/lib/ser/modules/sl.so] 0(2577) routing table 0: ...blah ...blah ...blah ...blah WARNING: could not rev. resolve 192.168.0.4 Listening on 127.0.0.1 [127.0.0.1]:5060 192.168.0.4 [192.168.0.4]:5060 Aliases: MyHost:5060 localhost:5060 localhost.localdomain:5060 config file ok, exiting... 0(2577) DEBUG: tm_shutdown : start 0(2577) DEBUG: tm_shutdown : empting hash table 0(2577) DEBUG: tm_shutdown: releasing timers 0(2577) DEBUG: tm_shutdown : removing semaphores 0(2577) DEBUG: tm_shutdown : done 0(2577) shm_mem_destroy 0(2577) destroying the shared memory lock ---------------------------------------------------------------- I couldn't find what is wrong in my configuration... BTW, I can add, remove and edit users in MySQL Database using "serctl" subscribers commands (that means that my SER machine is talking with MySQL server as in expected)