We have already discussed about install Oracle 11g  and error fix. This post describe errors and solutions.

Error :

# /etc/init.d/oracle-xe status


LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 05-NOV-2013 08:56:13



Copyright (c) 1991, 2011, Oracle.  All rights reserved.



Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))

TNS-12541: TNS:no listener

 TNS-12560: TNS:protocol adapter error

  TNS-00511: No listener

   Linux Error: 2: No such file or directory

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=chakraisus.cloudmin.localdomain)(PORT=1521)))

TNS-12545: Connect failed because target host or object does not exist

 TNS-12560: TNS:protocol adapter error

  TNS-00515: Connect failed because target host or object does not exist


Find the error with lsnrctl command,
 
#  lsnrctl start


LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 05-NOV-2013 09:00:10



Copyright (c) 1991, 2011, Oracle.  All rights reserved.



Starting /u01/app/oracle/product/11.2.0/xe/bin/tnslsnr: please wait...



TNSLSNR for Linux: Version 11.2.0.2.0 - Production

System parameter file is /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora

Log messages written to /u01/app/oracle/product/11.2.0/xe/log/diag/tnslsnr/host/listener/alert/log.xml

Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))

Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=chakraisus.cloudmin.localdomain)(PORT=1521)))

TNS-12545: Connect failed because target host or object does not exist

 TNS-12560: TNS:protocol adapter error

  TNS-00515: Connect failed because target host or object does not exist



Listener failed to start. See the error message(s) above...

Find the listener.ora file using find command,
 
# find /u01/. -name 'listener.ora'


/u01/./app/oracle/product/11.2.0/xe/network/admin/listener.ora

/u01/./app/oracle/product/11.2.0/xe/network/admin/samples/listener.ora


rename the listener.ora and restart the oracle server or give the command to start
 
# cd  /u01/app/oracle/product/11.2.0/xe/network/admin

# mv listener.ora  listener.ora_bak 

# lsnrctl start

#  lsnrctl status


LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 05-NOV-2013 11:04:36



Copyright (c) 1991, 2011, Oracle.  All rights reserved.



Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))

STATUS of the LISTENER

------------------------

Alias                     LISTENER

Version                   TNSLSNR for Linux: Version 11.2.0.2.0 - Production

Start Date                05-NOV-2013 09:25:49

Uptime                    0 days 1 hr. 38 min. 47 sec

Trace Level               off

Security                  ON: Local OS Authentication

SNMP                      OFF

Listener Log File         /u01/app/oracle/product/11.2.0/xe/log/diag/tnslsnr/host/listener/alert/log.xml

Listening Endpoints Summary...

  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=host.gourmeda.com)(PORT=1521)))

  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=host.gourmeda.com)(PORT=8090))(Presentation=HTTP)(Session=RAW))

Services Summary...

Service "XE" has 1 instance(s).

  Instance "XE", status READY, has 1 handler(s) for this service...

Service "XEXDB" has 1 instance(s).

  Instance "XE", status READY, has 1 handler(s) for this service...

The command completed successfully


Check the oracle netstat 
 
# netstat -anp | grep oracle


tcp        0      0 ::ffff:124.153.121.157:1521 ::ffff:122.164.217.18:15659 ESTABLISHED 27994/oracleXE     

tcp        0      0 ::ffff:124.153.121.157:1521 ::ffff:122.164.217.18:15780 ESTABLISHED 28059/oracleXE     

unix  2      [ ACC ]     STREAM     LISTENING     172239 21545/tnslsnr       /var/tmp/.oracle/s#21545.1

unix  2      [ ACC ]     STREAM     LISTENING     172241 21545/tnslsnr       /var/tmp/.oracle/s#21545.2

unix  3      [ ]         STREAM     CONNECTED     189800 24537/xe_d000_XE    /var/tmp/.oracle/s#24537.1

unix  3      [ ]         STREAM     CONNECTED     185691 24537/xe_d000_XE    /var/tmp/.oracle/s#24537.1

If its not start perfectly check your $ORACLE_HOME path set correctly,
 
# echo $ORACLE_HOME;


/u01/app/oracle/product/11.2.0/xe

You have mail in /var/spool/mail/root


solution 1:

you have to check the host name with ip address in    /etc/hosts/ 

Finally kill oracle process start and check the status,
 
# /etc/init.d/oracle-xe status


LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 06-NOV-2013 17:02:56

Copyright (c) 1991, 2011, Oracle.  All rights reserved.



Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))

STATUS of the LISTENER

------------------------

Alias                     LISTENER

Version                   TNSLSNR for Linux: Version 11.2.0.2.0 - Production

Start Date                06-NOV-2013 17:02:32

Uptime                    0 days 0 hr. 0 min. 24 sec

Trace Level               off

Security                  ON: Local OS Authentication

SNMP                      OFF

Default Service           XE

Listener Parameter File   /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora

Listener Log File         /u01/app/oracle/diag/tnslsnr/user/listener/alert/log.xml

Listening Endpoints Summary...

  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))

  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=kvic-kimis.cloudmin.localdomain)(PORT=1521)))

  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=user.cloudmin.localdomain)(PORT=8090))(Presentation=HTTP)(Session=RAW))

Services Summary...

Service "PLSExtProc" has 1 instance(s).

  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

Service "XE" has 1 instance(s).

  Instance "XE", status READY, has 1 handler(s) for this service...

Service "XEXDB" has 1 instance(s).

  Instance "XE", status READY, has 1 handler(s) for this service...

The command completed successfully