After a successfull install, I can not launch oracle DB XE

Question

hello,
I installed oracle db XE 10.2.0.1.0 on a centos 6.2 (~redhat) but I can't start it.
I succeeded in launching it after the installation but after a reboot it is not launched (apex on my web browser gives me an error : page not found or similar).
I logged in the oracle account but it didn't worked.
(more infos if you want)
when I enter "su - oracle" in a terminal, I have this :
-bash-4.1$ su - oracle
Mot de passe :
-bash-4.1$ export DISPLAY=new-host-3:0
-bash-4.1$ /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/config/scripts/startdb.sh
xsetroot: unable to open display 'new-host-3:0'
xsetroot: unable to open display 'new-host-3:0'
-bash-4.1$ export DISPLAY=new-host-3:0.0
-bash-4.1$ /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/config/scripts/startdb.sh
xsetroot: unable to open display 'new-host-3:0.0'
xsetroot: unable to open display 'new-host-3:0.0'
-bash-4.1$ export DISPLAY=:0.0
-bash-4.1$ /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/config/scripts/startdb.sh
No protocol specified
xsetroot: unable to open display ':0.0'
No protocol specified
xsetroot: unable to open display ':0.0'
-bash-4.1$ export DISPLAY=:0
-bash-4.1$ /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/config/scripts/startdb.sh
No protocol specified
xsetroot: unable to open display ':0'
No protocol specified
xsetroot: unable to open display ':0'
and with my account (in which xclock works) :
[olivier@new-host-3 ~]$ /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/config/scripts/startdb.sh
[olivier@new-host-3 ~]$
...seems ok yet the cursor appears only one second after the entering of the command, and the database does not have the time to be launched.
can you help me?
I can give you more informations if you want.
thanks,
olivier
Edited by: 895233 on 30 janv. 2012 12:06

Answer 1

Hello
thanks!
I tried the commands you gave me and here is the result :
[olivier@new-host-3 ~]$ su - oracle
Mot de passe :
-bash-4.1$ . /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin/oracle_env.sh
-bash-4.1$ lsnctl start
-bash: lsnctl : commande introuvable
-bash-4.1$ whereis lsnctl
lsnctl:
-bash-4.1$ lsnrctl start
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 30-JANV.-2012 23:32:49
Copyright (c) 1991, 2005, Oracle. All rights reserved.
TNS-01106: Le processus d'écoute LISTENER a déjà été lancé
-bash-4.1$ sqlplus /nolog
SQL*Plus: Release 10.2.0.1.0 - Production on Lun. Janv. 30 23:33:00 2012
Copyright (c) 1982, 2005, Oracle. All rights reserved.
SQL> connect /as sysdba
Connecté.
SQL> startup;
ORA-01081: impossible de lancer ORACLE déjà en cours - fermer d'abord le thread
SQL> exit
Déconnecté de Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production
-bash-4.1$ lsnrctl status
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 30-JANV.-2012 23:33:57
Copyright (c) 1991, 2005, Oracle. All rights reserved.
Connexion à (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))
STATUT du PROCESSUS D'ECOUTE
Alias LISTENER
Version TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Date de départ 30-JANV.-2012 18:20:03
Durée d'activité 0 jours 5 heures 13 min. 54 sec
Niveau de trace off
Sécurité ON: Local OS Authentication
SNMP OFF
Service par défaut XE
Fichier de paramètres du processus d'écoute /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/network/admin/listener.ora
Fichier journal du processus d'écoute /usr/lib/oracle/xe/app/oracle/product/10.2.0/server/network/log/listener.log
Récapitulatif d'écoute des points d'extrémité...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=127.0.0.1)(PORT=1521)))
Récapitulatif services...
Le service "PLSExtProc" comporte 1 instance(s).
L'instance "PLSExtProc", statut UNKNOWN, comporte 1 gestionnaire(s) pour ce service...
La commande a réussi
-bash-4.1$
it's in french, but you can see there is nothing about the HTTP port... and apex does not work.
could you help me, or tell me where it could come from?
the best thing I could do would be a script which would be launched at the startup of the OS.
olivier