we have deployed jboss on Redhat EL 4.0. Everything is logged to server.log but after server started successfully it won't log any other errors generated. For eg the last line in server.log is always:
JBoss (MX MicroKernel) [4.0.2 (build: CVSTag=JBoss_4_0_2 date=200505022023)] Started in 1m:19s:881ms
Not sure that your post contains enough information to help us help you. The conf/log4j.xml file plus the "error" code that logs the information you think you should be seeing might be helpful.