Problems after starting the Enterprise Manager agent

Question

Hello,
I have a problem, the agent of the enterprise manager does not start, do not know how I can do to reinstall the agent, in executing the command emctl start agent, inevitably show that the agent can not be started, I've done many things and not know what else can do, I have the version oracle 10gR2 10.2.0.5.0 on AIX 6.1, additionally do not know what operating system processes or daemons must be up to work.
thanks for the help you can give me

Answer 1

Look, this is the result of instructions:
[saray]]/etc/rc.d]>emctl status dbconsole
Oracle Enterprise Manager 10g Database Control Release 10.2.0.5.0
Copyright (c) 1996, 2010 Oracle Corporation. All rights reserved.
http://saray:1158/em/console/aboutApplication
EM Daemon is not running.
Logs are generated in directory /oracle/app/product/10.2.0.5/saray_UFPS/sysman/log
[saray]]/etc/rc.d]>emctl status dbconsole
Oracle Enterprise Manager 10g Database Control Release 10.2.0.5.0
Copyright (c) 1996, 2010 Oracle Corporation. All rights reserved.
http://saray:1158/em/console/aboutApplication
EM Daemon is not running.
Logs are generated in directory /oracle/app/product/10.2.0.5/saray_UFPS/sysman/log
[saray]]/etc/rc.d]>emctl start dbconsole
Oracle Enterprise Manager 10g Database Control Release 10.2.0.5.0
Copyright (c) 1996, 2010 Oracle Corporation. All rights reserved.
http://saray:1158/em/console/aboutApplication
ps: invalid list with -o.
ps: illegal option -- -
Usage: ps [-ANPaedfklmMZ] [-n namelist] [-F Format] [-o specifier[=header],...]
[-p proclist][-G|-g grouplist] [-t termlist] [-U|-u userlist] [-c classlist] [ -T pid] [ -L pidlist]
[-@ [wparname] ]
Usage: ps [aceglnsuvwxX] [t tty] [ProcessNumber]
Starting Oracle Enterprise Manager 10g Database Control .... started.
Logs are generated in directory /oracle/app/product/10.2.0.5/saray_UFPS/sysman/log