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Comments for Oracle Database 10g ( Installation On Red Hat Enterprise Linux 4 (RHEL4)

Gustavo Lucas said...

for startup/shutdown, DB oracle, EM and isqlplus
change the dbora script to:

# description: Oracle auto start-stop script.
# chkconfig: - 20 80
# Set ORA_HOME to be equivalent to the $ORACLE_HOME
# from which you wish to execute dbstart and dbshut;
# Set ORA_OWNER to the user id of the owner of the
# Oracle database in ORA_HOME.
if [ ! -f $ORA_HOME/bin/dbstart ]
echo "Oracle startup: cannot start"
case "$1" in
# Start the Oracle databases:
# The following command assumes that the oracle login
# will not prompt the user for any values
su - $ORA_OWNER -c "$ORA_HOME/bin/lsnrctl start"
su - $ORA_OWNER -c "$ORA_HOME/bin/emctl start dbconsole"
su - $ORA_OWNER -c "$ORA_HOME/bin/isqlplusctl start"
su - $ORA_OWNER -c $ORA_HOME/bin/dbstart
# Stop the Oracle databases:
# The following command assumes that the oracle login
# will not prompt the user for any values
su - $ORA_OWNER -c $ORA_HOME/bin/dbshut
su - $ORA_OWNER -c "$ORA_HOME/bin/isqlplusctl stop"
su - $ORA_OWNER -c "$ORA_HOME/bin/emctl stop dbconsole"
su - $ORA_OWNER -c "$ORA_HOME/bin/lsnrctl stop"

Shanker Jadapa said...

I was working on Cent-os 4, this document did not cover the following parameters.


Jr DBA said...

I am working on RHEL 4 ,
Oracle gave me these pre-requisties warning messages that are missing /etc/sysctl.conf

"checking kernel parameters
checking for rmem_default=262144; found rmem_default=110592
checking for rmem_max=262144;found rmem_max=131071
checking for wmem_default=262144;found wmem_default=110592
checking for wmem_max=262144;found wmem_max=131071"

Any specific reason for not adding above kernel parameters??

Tim... said...


When I wrote the article, setting these parameters was not required. If you are using a later spin of the software, then the requirements may have changed.

Note: In the RAC article for this version, these parameters are required so they are included. See:


If you are actually doing in a RAC installation, then I would suggest you follow that article. If not, they must be a new requirement with a later version of the installer.



Mario said...

ORA-27125: simply authorize the oracle gropu to access huge shm memory, for kernels newer than 2.6.7:

echo "" > /proc/sys/vm/hugetlb_shm_group

where is the gid of group oinstall (usually 500).

Regards, Mario

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