Can't start OEM

Question

I installed Oracle9.0.2 on debain 3.0_r1 and selected software only option to install.
After installation finished, I try to start OEM, but it failed and also can not start dbca.
Error messages as following:
oracle@debian:~/product/9.2.0/bin$ ./oemapp console&
[1] 13128
oracle@debian:~/product/9.2.0/bin$ SIGSEGV 11* segmentation violation
stackbase=BFFFEC2C, stackpointer=BFFFD1E4
Full thread dump:
"SIGQUIT handler" (TID:0x4219a2a0, sys_thread_t:0x83127e8, state:R, thread_t: t@2051, sp:0x0 threadID:0x3359, stack_base:0xbf5ffaa0, stack_size:0x200000) prio=1075652256
"Finalizer thread" (TID:0x4219a088, sys_thread_t:0x83126c0, state:CW, thread_t: t@1026, sp:0x0 threadID:0x3358, stack_base:0xbf7ffaa0, stack_size:0x200000) prio=1075652256
"main" (TID:0x4219a0b0, sys_thread_t:0x830c338, state:R, thread_t: t@1024, sp:0x0 threadID:0x3348, stack_base:0xbfffec2c, stack_size:0x200000) prio=1075652256 current thread
java.lang.System.initializeSystemClass(System.java)
Monitor Cache Dump:
Registered Monitor Dump:
Thread queue lock: <unowned>
Name and type hash table lock: <unowned>
String intern lock: <unowned>
JNI pinning lock: <unowned>
JNI global reference lock: <unowned>
BinClass lock: <unowned>
Class loading lock: <unowned>
Java stack lock: <unowned>
Code rewrite lock: <unowned>
Heap lock: <unowned>
Has finalization queue lock: <unowned>
Finalize me queue lock: <unowned>
Waiting to be notified:
"Finalizer thread" (0x83126c0)
Monitor registry: owner "main" (0x830c338, 1 entry)
[1]+ Aborted ./oemapp console
oracle@debian:~/product/9.2.0/bin$

Answer 1

Thanks for the reply, I tried that but it just gives
me:
Oracle Enterprise Manager 10g Database Control
Release 10.2.0.1.0
Copyright (c) 1996, 2005 Oracle Corporation. All
rights reserved.
Agent is running. Stop the agent and rerun the
command.
But the agent is definitely not running.i.e Stop the agent and rerun rodneyli's command you tried above.