Oracle 11gR2 specific - database/stage/prereq/db/refhost.xml
Hi there,
I am wondering what happened to refhost.xml and actually the whole "prereq/db" folder.
Can anyone confirm where did they move it to?
Thank you
Hi;
Please see below doc which could be helpful for your issue:
11.1.0.6 Installation on AIX6 Fails at xlc.aix50.rte(9.0.0.0) [ID 741422.1]
Regard
Helios
Similar Messages
-
Uninstall Oracle 11gr2 RAC database in grid infrastructure
Hi all,
After several attempt to install my Oracle database RAC with grid infrastructure, i want now to do a fresh installation as i have attempted 3 times and now i have all the procedure on installing the database and RAC.
Actually i have installed it correctly but now i want to cleanup my server and remove all oracle installation directory and do a fresh installation.
My question is what is the procedure to uninstall an Oracle RAC database and Clusterware with grid infrastucture and cleanup oracle base installation.
The architecture is:
GRID and clusterware: Oracle grid 11gR2
Database: Oracle database 11gR2
Database and grid storage: ASM
OS: linux centos 6
Thank you.
Raluce.The deinstallation of Oracle GI could be not so easy thing to do, because it contains many components one should be aware of. The proper deinstall is important because it will safe you from many issues with next install on these servers
In general we need to be sure that:
1. all sowftware stopped properly
2. removed from oraInventory
3. binaries removed
4. /etc/oracle cleared
5. ocr and votes cleared using dd
6. /etc/oratab updated
7. .profile updated
8. init.d files in /etc/ cleard
Usually its recommended to use deconfigure scripts, if they fails for some reason, the manual procedure should be followed.
How to Deconfigure/Reconfigure(Rebuild OCR) or Deinstall Grid Infrastructure [ID 1377349.1]
How to Deinstall Oracle Clusterware Home Manually [ID 1364419.1]
As general recommendation its good idea to save your crs configuration for future reference.
Regards
Ed Rudans
http://erudans.blogspot.com -
Error on Oracle 11gR2 RAC database Post upgrade step
[Upgrade the Oracle Clusterware Configuration|http://docs.oracle.com/cd/E11882_01/server.112/e23633/afterup.htm] Problem Description:
O.S Version: HP-UX B.11.31 U ia64
It is upgrading of Oracle RAC 2 node database from 11.1.0.7.0 to 11.2.0.3.0
I receive following error while perfoming the post upgrade step
indba1 racdb> srvctl upgrade database -d racdb -o /app/oracle/product/11.2.0.3/db
PRCD-1231 : Failed to upgrade configuration of database racdb to version 11.2.0.3.0 in new Oracle home /app/oracle/product/11.2.0.3/db
PRKC-1136 : Unable to find version for database with name racdb
Actually I am performing the step "Upgrade the Oracle Clusterware Configuration" whill getting the error.
When I tried on below;
indba1 racdbp> srvctl upgrade database -d racdb -o /app/oracle/product/11.2.0.3/db
PRCD-1231 : Failed to upgrade configuration of database racdb to version 11.2.0.3.0 in new Oracle home /app/oracle/product/11.2.0.3/db
PRKC-1136 : Unable to find version for database with name racdbOutput from Oracle 11.1.0.7 Home:
oracle@indba1:/app/oracle/product/11g/db_1 $ srvctl config database -d racdb
PRKR-1001 : cluster database racdb does not exist
PRKO-2005 : Application error: Failure in getting Cluster Database Configuration for: racdb
Output from Oracle 11.2.0.3 Home:
oracle@usfsdba1:/app/oracle/product/11.2.0.3/db $ srvctl config database -d racdb
PRKR-1001 : cluster database racdb does not exist
PRKO-2005 : Application error: Failure in getting Cluster Database Configuration for: racdb -
Oracle 11gR2 rac database upgrade
Hi,
I need to upgrade Oracle 11.2.0.3 rac db (TB) to 11.2.0.4 in unix environment
database is 2 node rac with asm file structure. oracle home is shared by multiple databases.
Could anyone guide for best approach to proceed with this upgrade?
What changes are need to done in existing 11g cluster home and asm structure for this successful upgrade?
ThanksHi,
For Grid Upgrade you find complete details at - Things to Consider Before Upgrading to 11.2.0.3/11.2.0.4 Grid Infrastructure/ASM (Doc ID 1363369.1)
For DB Upgrade following note can help. You need to select the option 3 for RAC DB.
Troubleshooting Assistant: Oracle Database/Client Upgrade - Downgrade (Doc ID 1561791.2)
HTH,
Pradeep -
Oracle 11gR2 alter database open hangs for a long time
Hi,
We are cloning oracle apps database with RAC to non-RAC. We did the ORACLE_HOME clone and then duplicated the database with rman.
It completed successfully.
While trying to bounce the database, the db startup option hangs at "alter database open" for a long time
There are no errors in the alert log file. It just waits at "alter database open"
Please help and thanks in advance.
Regards
SasikalaThese are the lines in the trace file
Instance name: stdby
Redo thread mounted by this instance: 0 <none>
Oracle process number: 9
Unix process pid: 434204, image: oracle@developmentDR (MMAN)
*** 2011-01-31 09:32:40.713
*** SESSION ID:(208.1) 2011-01-31 09:32:40.713
*** CLIENT ID:() 2011-01-31 09:32:40.713
*** SERVICE NAME:() 2011-01-31 09:32:40.713
*** MODULE NAME:() 2011-01-31 09:32:40.713
*** ACTION NAME:() 2011-01-31 09:32:40.713
def_comp: comp id 7 bp state 4
And I din try opening the db with resetlogs. Do you want me to do that?
thanks -
Create a database link to access SqlServer 2005 view from oracle 11gr2
Hi All,
Greetings for the day.
Though I have seen quite a few posts but just wanted to cross-verfiy and double check hence posting.
Oracle Database : 11gr2
OS :SOLARIS SPARC 64 Bit
SQL Server Database : Sql Server 2005
OS : Windows 2003 32 Bit
The requirement is to access a view residing in the SQL Server 2005 Database using the Oracle Database. This involves creation of a Database link in the Oracle Database to access the SQL Server.
Can you suggest which approach should i follow ( I am able to understand that both do the same job ):
How to Configure DG4MSQL (Oracle Database Gateway for MS SQL Server) 64bit Unix OS (Linux, Solaris, AIX,HP-UX) post install [ID 562509.1]or
How to Configure DG4ODBC on 64bit Unix OS (Linux, Solaris, AIX, HP-UX Itanium) to Connect to Non-Oracle Databases Post Install [ID 561033.1]Will they do the same job ? And can they be used on any OS and version of the SQL Server Database as version information for SQL Server is not specified anywhere?
Please let me know so that I can it forward with Business for approvals and budgetting.
Regards
KKYour question is similar to the post: Oracle 11gr2 connection to Sql Server using dg4msql problem
Please visit: http://stackoverflow.com/questions/4658942/oracle-11gr2-connection-to-sql-server-using-dg4msql-problem
Answer on the website:
You seem to be using the Gateway for MySQL set-up rather than the Heterogeneous Gateway (for ODBC connections). Here is an overview of the process
On SQL Server create a database user and give it read access to the database/tables you want to read via the Oracle database link.
In the gateway home each SQL Server database you want to access should have an init.ora located in $OH/dg4msql/admin in the form initsid.ora where sid is the name of the database to be used in the link (e.g. initbob.ora), so create one
HS_FDS_CONNECT_INFO=msserver1:1234//Example_Database
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
HS_TRANSACTION_MODEL=READ_ONLY
You must now add the new sid to the listener.ora in the gateway home using an additional SID_DESC section inside the existing SID_LIST, for example
(SID_DESC =
(SID_NAME=bob)
(ORACLE_HOME=/oracle/gateway/product/11.2.0)
(ENVS=LD_LIBRARY_PATH=/oracle/gateway/product/11.2.0/dg4msql/driver/lib;/oracle/gateway/product/11.2.0/lib)
(PROGRAM=dg4msql)
You should now stop and restart the gateway listener so that the new sid becomes active. NB a reload is not enough.
You must now add the new sid in the tnsnames.ora file for the listener of each database in which you will create a link. You don't need to do this in the gateway home unless it is also a database home in which you will create a database link.
bob =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = severname.example.com)(PORT = 1690))
(CONNECT_DATA = (SID = bob))
(HS = OK)
NB: The host and port are for the gateway not for the SQL Server database
In each database that requires a link to the MS-SQL database you should create a database link to your new gateway sid.
CREATE PUBLIC DATABASE LINK bob
CONNECT TO "ms_user" IDENTIFIED BY "ms-passwd" USING 'bob';
where ms-user and ms-password are the SQL Server user you created right at the start.
Now you can test the new database link
SELECT COUNT(*) FROM "Table_Name"@bob;
Once you have this working you can alter the initsid.ora file to add parameters to suit your connection. If you do it this way you can easily add and manage many different databases via the gateway.
Hip
Edited by: 1000595 on 04:58 17-04-2013 -
Cannot connect to Oracle 11gR2 database from SQL Server 2005
Both SQL Server (Windows) and Oracle (Linux) are in 64bit environments.
I have done the following on a Windows 2008 R2 with SQL Server 2005:
Install InstantClient from Oracle Database 11g Release 2 Client (11.2.0.1.0) for Microsoft Windows (x64) to C:\Oracle
Install oledb from 64-bit ODAC 11.2 Release 3 (11.2.0.2.1) for Windows x64 by executing install.bat oledb c:\oracle odac
Note: Not sure whether 11.2.0.2.1 version of ODAC will cause any problem since I cannot find 11.2.0.1.0 version.
I have checked the Allow inprocess of OraOLEDB.Oracle provider in SSMS.
I have executed sp_addlinkedserver @server = 'ORACLE_TEST', @srvproduct = 'Oracle', @provider = 'OraOLEDB.Oracle', @datasrc = '##.##.##.##:1521/TEST'
The ##.##.##.## is the ip address of the Linux server which has the Oracle 11gR2 database TEST.
I have executed sp_addlinkedsrvlogin @rmtsrvname = 'ORACLE_TEST', @useself = 'FALSE', @rmtuser = 'xxxx', @rmtpassword = 'yyyy'
The xxxx is the oracle username and yyyy is the password for the oracle user xxxx.
I know the oracle database TEST is up since I have setup connection in Oracle SQL Developer having:
##.##.##.## as the hostname
1521 as the Port
xxxx as the username
yyyy as the password
TEST as the service name
When I click Test Connection for the linked server ORACLE_TEST in SSMS, it just hang.
When I issue a query like select count(*) from oracle_test..xxxx.table1, it just run forever. I'm not so sure how to query an oracle table. I have also tried select count(*) from oracle_test.xxxx.xxxx.table1.
When I retype the password in the Linked Server Properties, it just run forever.
Do I need to create a tnsnames.ora on the Windows machine?
Do I need to change the tnsnames.ora on Linux machine?
I'm very new to Oracle.This forum is dealing with connections from an Oracle database to SQL Server - so the Oracle database is the driving site and this is the way round from your linked server set up.
As you're suing the instant client you might post your issue in the instant client forum:
Instant Client -
Hi
I try to find refhost.xml into Installation files (Oracle 11gR2), but I can't...
Where I find this parameters?
Thanks in advancePl elaborate on why you need to change or edit this file - there are no references to this file in the documentation - http://www.oracle.com/pls/db112/search?remark=quick_search&word=refhost.xml&partno=
HTH
Srini -
If we use result_cache_mode=force in oracle 11gr2 database then we don't ..
If we use result_cache_mode=force in oracle 11gr2 database then we don't need QSEl (third party software).
is the result cache feature is work same as qsel.
I am not able to find anything regarding it..please help...
http://www.qsel4oracle.com/FramePage_files/FramePageData.htmI don't know anything about QSEL, but can guess that it is some sort of caching solution sitting on Oracle.
Ideally, RESULT_CACHE_MODE should not be set to FORCE, as it will try to cache each and every SQL (and its results for different bind values).
But, if you have reasonably big SGA and within that SGA, if you have reasonably big result cache and you do RESULT_CACHE_MODE=FORCE, then you might not need third party caching solution.
Key question is, how big is reasonably big? that depends on size of data you are dealing with.
Good thing about result caching is, it works for user defined functions as well.
Also, you can enable result caching in certain sessions and disable it in certain session. -
Enable hyperthreading for virtualized Oracle 11gR2 database (OEL57 64-bit)?
We are virtualizing our Oracle 11gR2 databases (running on OEL57 64-bit) on Vmware 5.1. I've read information at various locations that hyperthreading is not recommended for Oracle 11g database. One example is here, however, I seen many more:
http://bryangrenn.blogspot.com/2011/08/hyperthreading.html
My issue is that Vmware themselves recommends enabling hyperthreading for virtualized Oracle databases in their Oracle Databases on VMware Best Practices Guide.
Does anyone have any practical experience with this issue that can be shared? What are the advantages and disadvantages of enabling hyperthreading for our virtualized Oracle 11gR2 on OEL57 64-bit virtual machines
Thanks, Fred
Edited by: 995752 on Mar 30, 2013 11:26 AM995752 wrote:
We are virtualizing our Oracle 11gR2 databases (running on OEL57 64-bit) on Vmware 5.1. I've read information at various locations that hyperthreading is not recommended for Oracle 11g database. One example is here, however, I seen many more:
http://bryangrenn.blogspot.com/2011/08/hyperthreading.html
If you read the comments on that blog you will see that the results are highly dependent on the type of CPU.
The effects can also be dependent on the nature of the workload: you may have CPUs that are fine with an OLTP workload, but don't scale as you might hope with a DW workload.
Regards
Jonathan Lewis -
Cannot connect Oracle 11gR2 to DB2 Database
Hi guys,
I gotta some issue connecting from Oracle to DB2. The point in, the connection works from Oracle 10G, but does not from 11G. Check it out:
Oracle 10g:
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> conn test/test
Connected.
SQL>
SQL> create database link db2
2 connect to user10
3 identified by user1000
4 using '(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=167.82.63.98)(PORT=1528))(HS=))';
Database link created.
SQL> select count(*) FROM DES.LIST_DEV@DB2;
COUNT(*)
231
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Oracle 11g:
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL> conn test/test
Connected.
SQL>
SQL> create database link db2
2 connect to user10
3 identified by user1000
4 using '(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=167.82.63.98)(PORT=1528))(HS=))';
Database link created.
SQL> select count(*) FROM DES.LIST_DEV@DB2;
select count(*) FROM DES.LIST_DEV@DB2
ERROR at line 1:
ORA-01017: invalid username/password; logon denied
ORA-02063: preceding line from DB2
SQL>
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
When connected through Oracle 10 (DBLINK working), DB2 access log shows this information:
GT8C G4AUTH: (USER10 / ) TCB=(00AC5E88) JOB=(ORAGT8C )
ICH70001I USER10 LAST ACCESS AT 11:01:14 ON FRIDAY, JULY 29, 2011
DB2AUTH: AIDLPRIM=(E2C1C4E2C5E24040), AIDLSQL=(4040404040404040)
DB2AUTH: USERID=(USER10 ), SUBSYS=(GT8C ), STC NAME=(ORAGT8C )
DB2AUTH: SSAT=(7F5B1840), TCB=(00AC5E88)
DB2AUTH: SECONDARY ID = (RJ00S )
Through Oracle 11 (DBLINK not working), these are the logs:
GT8C G4AUTH: ( / ) TCB=(00AC5628) JOB=(ORAGT8C )
ICH408I USER( ) GROUP( ) NAME(??? ) 820
LOGON/JOB INITIATION - USER AT TERMINAL NOT RACF-DEFINED
IRR012I VERIFICATION FAILED. USER PROFILE NOT FOUND.
GT8C G4AUTH: VERIFY FAILED R15=(00000004)
GT8C G4AUTH: ( 00AC5628 / ORAGT8C
TXM11802I TCP/IP socket #0001(4) closed between 167.82.63.98:1528 and
10.23.21.166:37691
Note: The user parameters (user10) is not filled. That's why I got the error 'invalid username/password permission denied'.Hi Rahil,
It is always best to open a new SR instead of adding to an existing one for questions sucha s this, as updates to old threads can be overlooked.
There are 2 methods you can use to conenct to a DB2 database -
- Database Gateway for DRDA (DG4DRDA)
- Database Gateway for ODBC(DG4ODBC)
There is further information in the following notes available on My Oracle Support -
Master Note for Oracle Gateway Products (Doc ID 1083703.1)
Options for Connecting to Foreign Data Stores and Non-Oracle Databases (Doc ID 233876.1)
Functional Differences Between DG4ODBC and Specific Database Gateways (Doc ID 252364.1)
Gateway and Generic Connectivity Licensing Considerations (Doc ID 232482.1)
If you do not have access to My Oracle Support then you will need to contact someone in your organisation to get access, or access the notes for you, as we cannot paste them into OTN.
You can also check the gateway documentation here -
http://www.oracle.com/pls/db112/homepage
Click on 'Information Integration' and then 'Heterogeneous Connectivity'
Regards,
Mike -
Oracle 11gr2 database installation using ASM on standalone Server.
Hello Guys,
Environment is as below:
Oracle 11gr2
ASM
Enterprise Linux Server release 5.5 (Carthage)
I never did oracle 11gr2 installation using ASM and I need to install Oracle software on standalone server and then create database 11g Release 2.
I have following doubts:
1. Do we need to install Grid infrastructure software for standalone server as well ?
2. Does Grid Infrastructure software comes separately or alongwith DB software ?
3.Is Grid software same for RAC and standalone server setup ?
4.Do we need to create user Grid for installation of Grid for standalone server as well ?
can anyone give me full steps from scratch ?
Regards,
Edited by: LazyDBA11g on Apr 10, 2011 12:44 AM
Edited by: LazyDBA11g on Apr 10, 2011 12:47 AMHello sb,
Please find below the output of desired commands:
[oracle@yyy ~]$ id
uid=54321(oracle) gid=54321(oinstall) groups=54321(oinstall),54322(dba)
[oracle@yyy ~]$ env | sort
_=/bin/env
G_BROKEN_FILENAMES=1
HISTSIZE=1000
HOME=/home/oracle
HOSTNAME=yyy.in
INPUTRC=/etc/inputrc
LANG=en_US.UTF-8
LD_LIBRARY_PATH=:/u01/app/oracle/product/11.2.0/db_1/lib
LESSOPEN=|/usr/bin/lesspipe.sh %s
LOGNAME=oracle
LS_COLORS=no=00:fi=00:di=00;34:ln=00;36:pi=40;33:so=00;35:bd=40;33;01:cd=40;33;0 1:or=01;05;37;41:mi=01;05;37;41:ex=00;32:*.cmd=00;32:*.exe=00;32:*.com=00;32:*.b tm=00;32:*.bat=00;32:*.sh=00;32:*.csh=00;32:*.tar=00;31:*.tgz=00;31:*.arj=00;31: *.taz=00;31:*.lzh=00;31:*.zip=00;31:*.z=00;31:*.Z=00;31:*.gz=00;31:*.bz2=00;31:* .bz=00;31:*.tz=00;31:*.rpm=00;31:*.cpio=00;31:*.jpg=00;35:*.gif=00;35:*.bmp=00;3 5:*.xbm=00;35:*.xpm=00;35:*.png=00;35:*.tif=00;35:
MAIL=/var/spool/mail/oracle
ORACLE_HOME=/u01/app/oracle/product/11.2.0/db_1
PATH=/u01/app/oracle/product/11.2.0/db_1/bin:/usr/kerberos/bin:/usr/local/bin:/b in:/usr/bin:/home/oracle/bin
PWD=/home/oracle
SHELL=/bin/bash
SHLVL=1
SSH_ASKPASS=/usr/libexec/openssh/gnome-ssh-askpass
SSH_CLIENT=172.20.1.139 4320 22
SSH_CONNECTION=172.20.1.139 4320 172.20.1.11 22
SSH_TTY=/dev/pts/1
TERM=xterm
USER=oracle
Regards, -
How to integrate oracle 11GR2 Database with OEM 12C
Dear experts,
I have installed Oracle Enterprise Manager Cloud Control 12c Release 2 Plug-in Update 1 (12.1.0.2) on windows 2008 64-bit version.
how can I integrate my Oracle 11G R2 database with OEM.
Thanks.Refer the following documents for promoting (discovering/adding) target database to EM 12c.
Understanding Database Discovery in Enterprise Manager 12c Cloud Control (Note 1400463.1)
Cloud Control for Oracle Database Assistant: Setup of Cloud Control to Manage Database Targets (Search Helper) (Note 1569848.2)
Discovering, Promoting, and Adding Targets:
http://docs.oracle.com/cd/E24628_01/doc.121/e24473/discovery.htm#CBAEGHBH
HTH
Mani -
Oracle 11gR2 Express Edition on Linux Ubuntu 11.10 howto
h1. Oracle 11gR2 Express Edition on Linux Ubuntu 11.10 howto
Author: Dude
Version: D
Last modified: 14-Jan-2012
You are welcome to add comments, but please do not discuss your installation issues in this thread. If you have a question about the instructions, please add a simple note to the link of your own thread. The instructions are the result of my own research and development. If you would like to use any of the information for your own blog or website, please include a link to this reference to include future changes.
Oracle 11gR2 Express Edition on Linux Ubuntu 11.10 howto
h2. Purpose
This document outlines instructions how to install Oracle XE under Ubuntu 11.10.
Ubuntu or Debian based Linux is not on the list of supported operation systems according to the Oracle documentation at http://download.oracle.com/docs/cd/E17781_01/install.112/e18802/toc.htm. You may want to consider virtualization software like Oracle Virtualbox and install Oracle Enterprise Linux as a free and professional alternative to installing XE under Ubuntu. You can also download pre-build virtual machines that include Oracle XE. You can browse http://otn.oracle.com/community/developer-vm for more information.
h2. Topics
h4. 1) Install Linux Ubuntu
h4. 2) Remote Terminal
h4. 3) Install Additional Software
h4. 4) Managing Swap Space
h4. 5) Modify Kernel Parameters
h4. 6) Oracle Home Directory
...a) Resize the Root Partition
...b) Setup External Storage
h4. 7) ORA-00845: MEMORY_TARGET
h4. 8) Installing Oracle 11gR2 Express Edition
h4. 9) Post-Installation
h4. 10) Tips and Troubleshooting
...a) Port 1521 appears to be in use by another application
...b) cannot touch `/var/lock/subsys/listener': No such file or directory
...c) ORA-00845: MEMORY_TARGET
...d) Apex ADMIN password
...e) SYS and SYSTEM password
...f) Uninstall Oracle 11g XE
...g) Reconfigure Oracle 11g XE
...h) Gnome Classic desktop
...i) Unix vi cursor keys
...j) Backup Database
h4. 11) History
h4. 12) References
h2. 1) Install Linux Ubuntu
The following assumes you have installed Ubuntu 11.10 Desktop Edition for AMD 64-bit, or upgraded from a previous version. Keep in mind that Oracle 11gR2 Express Edition is only available for 64-bit architecture. It is not necessarily a requirement, but I would not bother to install Oracle 11gR2 XE on a system with less than 2 GB of RAM installed. You can download Ubuntu for free at: http://www.ubuntu.com/download/ubuntu and install it using the default settings provided.
You can apply the latest OS patch-sets by clicking the power button icon in the upper right hand corner of the screen and selecting "Updates available..."
h2. 2) Remote Terminal
You will need command line access to perform the installation tasks. Select the top "Dash Home" button of the Unity toolbar and enter the word "terminal", or use CTRL-ALT-t. If you prefer to open a remote terminal session use SSH. Ubuntu does not come with a secure shell login by default. To install it, use the following command:
sudo apt-get install openssh-serverYou cannot login as root unless you set a root password using the "sudo passwd root" command. However, you can get root user access using the "sudo" command, which requires only to re-enter the password of your personal account. Access to "sudo" is controlled by the /etc/sudoers file.
The best way to establish a remote command line session as root is to login with your personal account, e.g.: ssh [email protected], and then type "sudo su -" to become root, or use "sudo <command>" to execute individual commands. If your account does not have "sudo" access you can login as root using "su - root", but will need to know the root password.
h2. 3) Install Additional Software
Oracle 11g Express Edition requires additional software that is not installed by default:
sudo apt-get install alien libaio1 unixodbch2. 4) Managing Swap Space
Oracle demands that the minimum swap space for Oracle Database XE is 2 GB (2095100 KB) or twice the size of RAM, whichever is lesser. Enter the following shell command to verify your swap space:
cat /proc/meminfo | grep -i swap
SwapCached: 0 kB
SwapTotal: 2095100 kB
SwapFree: 2095100 kBYou can increase available swap space by using a swap file as long as disk space permits. The advantage of a swap file versus a swap partition is flexible space management because you can add or delete swap space on demand as necessary. The following will create and enable an additional 1 GB swap file at system startup, located in the /home directory:
Login as root:
sudo su -Enter the following commands:
dd if=/dev/zero of=/home/swapfile bs=1024 count=1048576
mkswap /home/swapfile
swapon /home/swapfile
swapon -aCreate a backup of the original "fstab" file and add the new swap file:
cp /etc/fstab /etc/fstab.backup_`date +%N`
echo '/home/swapfile swap swap defaults 0 0' >> /etc/fstabExit from root and verify the new swap space:
exit
swapon -s
Filename Type Size Used Priority
/dev/sda5 partition 2095100 0 -1
/home/swapfile file 1048572 0 -2Swap space is not a substitute for installed RAM. Swap space is a safeguard that allows the system to move idle processes to disk before the OOM killer will begin to terminate processes in order to free up enough real memory to keep the system operational. The general rule for sizing the swap space depends on the size of installed RAM. If your system has less then 4 GB of RAM the swap space should usually be at least twice this size. If you have more than 8 GB of RAM installed you may consider to use an equal size as swap space. The more RAM you have installed, the less likely you are going to run into memory starvation, and the less likely you are going to need swap space, unless you have a bad process.
h2. 5) Modify Kernel Parameters
Oracle 11gR2 Express Edition requires the following Kernel parameters. Enter the commands exactly as shown:
Login as root:
sudo su -Cut & paste the following directly into a command shell (not a text editor):
cat > /etc/sysctl.d/60-oracle.conf <<-EOF
# Oracle 11g XE kernel parameters
fs.file-max=6815744
net.ipv4.ip_local_port_range=9000 65500
kernel.sem=250 32000 100 128
# kernel.shmmax=429496729
kernel.shmmax=107374183
EOFLoad and verify the new kernel parameters:
service procps start
sudo sysctl -q fs.file-max
sudo sysctl -q kernel.shmmax
sudo sysctl -q net.ipv4.ip_local_port_range
sudo sysctl -q kernel.sem The SHMMAX kernel parameter defines the upper memory limit of a process. It is a safeguard to stop a bad process from using all memory and causing RAM starvation. The Linux default is 32 MB. The official Oracle XE installation documentation suggests a value of 4 GB -1 bytes (429496729). Since Oracle 11g XE has a 1 GB memory limit, a smaller footprint will be a better safeguard for the complete system. Setting the SHMMAX parameter to 107374183 will be sufficient.
h2. 6) Oracle Home Directory
At the time of this writing, Enterprise Linux 6 is not supported for Oracle database yet. It is therefore not possible to confirm Oracle ext4 filesystem compatibility, which is default in Ubuntu 11. According to various information, ext4 may cause a performance problem for Oracle 11g database. The following will show you how to add a ext3 partition to your existing setup.
h3. 6.a) Resize the Root Partition
Provided you have sufficient free disk space, you should be able to resize the root partition to create an extra ext3 filesystem. Considering the 11 GB user datafile limit of the Express Edition, 18 GB should be more than enough.
You can use the free Gparted Live CD to shrink your startup volume. Gparted downloads are available at http://sourceforge.net/projects/gparted/files/gparted-live-stable. When burning the CD, pay attention to burn the raw .iso image and not the possibly "mounted" image. If you are using a virtual machine like Oracle Virtualbox, you can mount the .iso image directly. There are going to be a few prompts when the system starts from the CD, but you can press Return to accept the defaults.
When the Gparted window appears:
- Select your ext4 root partition, usually /dev/sda1
- Select the "Resize/Move" button from the toolbar.
- Enter 18000 into the "Free space following" field and press the Return key.
Be careful not not change the start of the partition!
- Click the "Resize/Move" of the dialog and then then the "Apply" toolbar button.
The process may take several minutes - do not abandon it!
- Select the new unallocated free space of ~ 18 GB and push the "New" button.
- Set the file system to "ext3" and label it "oraclexe" and click the "Add" button.
Be sure to label it oraclexe, otherwise the follow-up instructions will fail.
- Finally select "Apply from the toolbar to apply the changes.
- Quit "Gparted", select "Exit" from the desktop and choose "Reboot" to restart the system.
{code}
After the system has restarted, open a terminal command shell.
Login as root:
{code}
sudo su -
{code}
Backup "fstab" and add the UUID of the partition. The "tr" command remove the quotes:
{code}
cp /etc/fstab /etc/fstab_`date +%N`
uuid=`blkid | grep oraclexe | awk '{print $3}'`
uuid=`echo $uuid | tr -d '\042'`
echo $uuid
echo "$uuid /u01 ext3 errors=remount-ro 0 1" >> /etc/fstab
{code}
The UUID is a unique number and should look similar to:
{code}
UUID=d1db753e-b5dd-4a4c-a61e-259c69867b58
{code}
Restart the system:
{code}
reboot
{code}
Verify the success:
{code}
df -h /u01
{code}
h3. 6.b) Setup External Storage
If you prefer to setup an external drive to install Oracle XE, beware that it can be a fatal mistake to make an entry in /etc/fstab to automount your external storage device. An unavailable device in /etc/fstab will prevent a system startup and prompt for appropriate actions at the console.
The following is an example of how to prepare an external storage device to be used for Oracle 11g, including a script to automatically mount an external drive at system startup without the disadvantages of /etc/fstab. The script will also take into consideration that a device name might shift if you attach additional devices.
To find out which USB devices are connected:
{code}
sudo parted -l
{code}
Look for the device that matches your USB storage. For example: /dev/sdb1
{code}
Model: USB 2.0 Flash Disk (scsi)
Disk /dev/sdb: 2064MB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Number Start End Size File system Name Flags
1 20.5kB 1929MB 1929MB hfs+ mystick
{code}
Initialize the device using ext3 filesystem - this will erase all data. The "-c" option will check for bad blocks (read-only), "-L" is the volume label:
{code}
sudo umount /dev/sdb1
sudo mkfs.ext3 -c -L oraclexe /dev/sdb1
{code}
Install the pmount distribution package:
{code}
sudo apt-get install pmount
{code}
Login as root:
{code}
sudo su -
{code}
Cut & paste the following into the command prompt (not a text editor):
{code}
cat > /etc/init.d/oracle-mount <<-EOF
#! /bin/sh
# /etc/init.d/oracle-mount
VOL_UUID=alphanumeric
VOL_LABEL=oraclexe
VOL_SYMLINK=/u01
mount=/usr/bin/pmount
uuid2dev() {
VOL_DEVICE="\`blkid | grep \$VOL_UUID | awk '{print \$1}'\`"
VOL_DEVICE="\`echo \$VOL_DEVICE | tr -d ':'\`"
echo \$VOL_DEVICE
case "\$1" in
start)
echo "Starting script /etc/init.d/oracle-mount"
uuid2dev
\$mount \$VOL_DEVICE \$VOL_LABEL
if [ -d /media/\$VOL_LABEL ]; then
echo "Mount \$VOL_DEVICE success"
ln -sf /media/\$VOL_LABEL \$VOL_SYMLINK
else
echo "Error mouting \$VOL_DEVICE"
fi
stop)
echo "Stopping script /etc/init.d/oracle-mount"
uuid2dev
/bin/umount \$VOL_DEVICE 2>/dev/null
if [ "\`/usr/bin/pmount | /bin/grep \$VOL_DEVICE\`" ]; then
echo "Error unmounting \$VOL_DEVICE"
else
rm -f \$VOL_SYMLINK
fi
echo "Usage: /etc/init.d/oracle-u01 {start|stop}"
exit 1
esac
### BEGIN INIT INFO
# Provides: oracle-mount
# Required-Start: \$remote_fs \$syslog
# Required-Stop: \$remote_fs \$syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start daemon at boot time
# Description: Mount hotplug-usb drive and create symlink
### END INIT INFO
EOF
{code}
Install the oracle-mount init script:
{code}
chmod 755 /etc/init.d/oracle-mount
update-rc.d oracle-mount defaults 01 99
{code}
Get the UUID of the volume "oraclexe" and update the VOL_UUID in the init script accordingly:
{code}
uuid=`blkid | grep oraclexe | awk '{print $3}'`
echo $uuid
sed -i "s/^VOL_UUID=.*/VOL_$uuid/g" /etc/init.d/oracle-mount
{code}
The UUID of your device will be a unique number, but should be similar to:
{code}
UUID="3f5e9963-b328-49f3-b3e8-a3561ae34106"
{code}
Logout of root and test the init script:
{code}
exit
sudo /etc/init.d/oracle-mount stop
ls /u01
sudo /etc/init.d/oracle-mount start
ls /u01
{code}
Your output should look like:
{code}
Stopping script /etc/init.d/oracle-mount
/dev/sdb1
ls: cannot access /u01: No such file or directory
Starting script /etc/init.d/oracle-mount
/dev/sdb1
Mount /dev/sdb1 success
lost+found
{code}
h2. 7) ORA-00845: MEMORY_TARGET
Oracle 11gR2 XE under Ubuntu 11.10 will result in "ORA-00845: MEMORY_TARGET not support on this system" either at Oracle database startup or during the initial installation. Ubuntu 11.10 uses a new version of the "systemd" system and session manager and has migrated away from /dev/shm and other common directories in favor of /run.
There are several ways how to address the problem. You can either enable /dev/shm shared memory, or change the default memory management of Oracle 11g from AMM (Automatic Memory Management) to ASMM (Automatic Shared Memory Management) as it was in used the previous 10g version. Since AMM is one of the new features of 11g, the following will show you how to make to make AMM work.
Login as root:
{code}
sudo su -
{code}
Cut & paste the following into the command prompt (not a text editor):
{code}
cat > /etc/init.d/oracle-shm <<-EOF
#! /bin/sh
# /etc/init.d/oracle-shm
case "\$1" in
start)
echo "Starting script /etc/init.d/oracle-shm"
# Run only once at system startup
if [ -e /dev/shm/.oracle-shm ]; then
echo "/dev/shm is already mounted, nothing to do"
else
rm -f /dev/shm
mkdir /dev/shm
mount -B /run/shm /dev/shm
touch /dev/shm/.oracle-shm
fi
stop)
echo "Stopping script /etc/init.d/oracle-shm"
echo "Nothing to do"
echo "Usage: /etc/init.d/oracle-shm {start|stop}"
exit 1
esac
### BEGIN INIT INFO
# Provides: oracle-shm
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Bind /run/shm to /dev/shm at system startup.
# Description: Fix to allow Oracle 11g use AMM.
### END INIT INFO
EOF
{code}
Install the oracle-shm init script:
{code}
chmod 755 /etc/init.d/oracle-shm
update-rc.d oracle-shm defaults 01 99
{code}
Restart the system:
{code}
reboot
{code}
Verify the success:
{code}
sudo cat /etc/mtab | grep shm
{code}
{code}
none /run/shm tmpfs rw,nosuid,nodev 0 0
/run/shm /dev/shm none rw,bind 0 0
{code}
The upper limit of shared memory under Linux is set to 50 % of the installed RAM by default. If your system has less than 2 GB of RAM installed, there is still a chance to run into ORA-00845 error if your shared memory is used by other software.
The verify available shared memory, type the following commands:
{code}
sudo df -h /run/shm
{code}
h2. 8) Installing Oracle 11gR2 Express Edition
The final release version of Oracle 11gR2 Express Edition can be downloaded for free at http://otn.oracle.com/database/express-edition/downloads. The software should automatically downloaded into the "Downloads" folder of your home directory.
Enter the following commands to unpack the installer:
{code}
cd ~/Downloads
unzip oracle-xe-11.2.0-1.0.x86_64.rpm.zip
rm oracle-xe-11.2.0-1.0.x86_64.rpm.zip
{code}
The Debian Linux based package management of Ubuntu is not compatible with the Red Hat package manager. The Oracle installer needs to be converted using the following commands:
{code}
cd ~/Downloads/Disk1
sudo alien --to-deb --scripts oracle-xe-11.2.0-1.0.x86_64.rpm
(This may take a few minutes)
rm oracle-xe-11.2.0-1.0.x86_64.rpm
{code}
The following needs to be set for compatibility:
{code}
sudo ln -s /usr/bin/awk /bin/awk
sudo mkdir /var/lock/subsys
{code}
Ubuntu uses different tools to manage services and system startup scripts. The "chkconfig" tool required by the Oracle installer is not available in Ubuntu. The following will create a file to simulate the "chkconfig" tool.
Login as root:
{code}
sudo su -
{code}
Copy & paste the following *directly* into the command prompt to create a file:
{code}
cat > /sbin/chkconfig <<-EOF
#!/bin/bash
# Oracle 11gR2 XE installer chkconfig hack for Debian based Linux (by dude)
# Only run once.
echo "Simulating /sbin/chkconfig..."
if [[ ! \`tail -n1 /etc/init.d/oracle-xe | grep INIT\` ]]; then
cat >> /etc/init.d/oracle-xe <<-EOM
### BEGIN INIT INFO
# Provides: OracleXE
# Required-Start: \\\$remote_fs \\\$syslog
# Required-Stop: \\\$remote_fs \\\$syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Oracle 11g Express Edition
### END INIT INFO
EOM
fi
update-rc.d oracle-xe defaults 80 01
EOF
{code}
Exit root:
{code}
exit
{code}
Set execute privileges:
{code}
sudo chmod 755 /sbin/chkconfig
{code}
Install Oracle 11gR2 Express Edition entering the following commands:
{code}
cd ~/Downloads/Disk1
sudo dpkg --install ./oracle-xe_11.2.0-2_amd64.deb
(This may take a couple of minutes)
{code}
Run the configuration script to create (clone) the database and follow the screen. Accept the default answers, including "y" to startup the database automatically, or modify as required.
{code}
sudo /etc/init.d/oracle-xe configure
(This can take a few minutes - the installation completed successfully.)
{code}
To verify success, the procedure should end showing:
{code}
Starting Oracle Net Listener...Done
Configuring database...Done
Starting Oracle Database 11g Express Edition instance...Done
Installation completed successfully.
{code}
Set a password for the Oracle account:
{code}
sudo passwd oracle
{code}
h2. 9) Post-Installation
In order to use sqlplus and other tools, the Oracle account requires specific environment variables. The following will set these variables automatically at every Oracle login:
Login as the Oracle user:
{code}
su - oracle
{code}
Copy the default account skeleton files and add the Oracle env script to .profile:
{code}
cp /etc/skel/.bash_logout ./
cp /etc/skel/.bashrc ./
cp /etc/skel/.profile ./
echo "" >>./.profile
echo '. /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh' >>./.profile
{code}
By default, the Oracle Database XE graphical user interface is only available at the local server, but not remotely. The following will enable remote logins:
Login as the Oracle user:
{code}
su - oracle
{code}
Login as SYSDBA and execute the following:
{code}
sqlplus / as sysdba
SQL> EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);
exit
{code}
See http://download.oracle.com/docs/cd/E17781_01/admin.112/e18585/toc.htm for more information.
h3. a) Unity desktop configurations
The Oracle XE menu under the previous Gnome Classic desktop shows several useful scripts to backup the database, start and stop the database, etc. Under the Unity based desktop this menu is not available. You can either switch to the Gnome Classic desktop as outlined in chapter 2, or perform the following steps to modify and copy the scripts as outlined below. The start and stop database scripts will also be modified to perform a progress feedback.
Login as user root:
{code}
sudo su -
{code}
Convert desktop files:
{code}
cd /usr/share/applications
sed -i 's/Categories.*/Categories=Database;Office;Development;/g' oraclexe*
sed -i 's/MultipleArgs/X-MultipleArgs/g' oraclexe*
sed -i 's/MimeType.*/MimeType=application\/x-database/g' oraclexe*
sed -i 's/.png//g' oraclexe*
sed -i 's/Terminal=false/Terminal=true/g' oraclexe-startdb.desktop
sed -i 's/Terminal=false/Terminal=true/g' oraclexe-stopdb.desktop
{code}
Exit root:
{code}
exit
{code}
Login as user Oracle:
{code}
su - oracle
{code}
Modify database start and stop scripts:
{code}
cd /u01/app/oracle/product/11.2.0/xe/config/scripts
cp startdb.sh start.sh_orig
cp stopdb.sh stopdb.sh_orig
sed -i 's/>.*//g' startdb.sh
sed -i 's/>.*//g' stopdb.sh
{code}
You will need SYSDBA privileges and set Oracle environment variables in order to use your regular user account.
Login to your regular user account:
{code}
su - dude
{code}
Enter the folowing command:
{code}
sudo usermod -a -G dba dude
{code}
Then update your profile to automatically set the necessary Oracle environment variables:
{code}
echo "" >>./.profile
echo '. /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh' >>./.profile
{code}
Update your Desktop folder to contain useful Oracle XE scripts:
{code}
cp /usr/share/applications/oraclexe* ~/Desktop
chmod 750 ~/Desktop/oraclexe*
{code}
To verify success re-login and try "sqlplus":
{code}
su - oracle
sqlplus / as sysdba
{code}
h2. 10) Tips and Troubleshooting
h3. 10. a) Port 1521 appears to be in use by another application
Error: Port 1521 appears to be in use by another application. Specify a different port.This error happens after a previously unsuccessful configuration attempt using /etc/init.d/oracle-xe configure script. The script was able to start the Listener process, but most likely failed to continue to clone the database, e.g. ORA-00845. The following should correct the problem:
Determine the oracle listener process that is already running:
{code}
$ ps -ef | grep oracle
{code}
Your output should be similar to:
{code}
oracle 19789 1 0 19:46 ? 00:00:00 /u01/app/oracle/product/11.2.0/xe/bin/tnslsnr
{code}
Then kill the process, using the appropriate process id, for instance:
{code}
$ sudo kill -9 19789
{code}
h3. 10.b) cannot touch `/var/lock/subsys/listener': No such file or directory
Starting Oracle Net Listener...touch: cannot touch `/var/lock/subsys/listener': No such file or directoryThis error occurs when you run /etc/init.d/oracle-xe configure, but failed the preinstallation step to create the /var//lock/subsys directory as outlined in chapter 8.
h3. 10.c) ORA-00845: MEMORY_TARGET
ORA-00845: MEMORY_TARGET not supported on this system See chapter 7 to enable /dev/shm and verify free space available in /run/shm
h3. 10.d) Apex ADMIN password
According to the Oracle documentation, the password for the INTERNAL and ADMIN Oracle Application Express user accounts is initially the same as the SYS and SYSTEM administrative user accounts. Well, I tried several times without success. To reset the Apex Admin password:
Login as user oracle:
{code}
su - oracle
{code}
Login as SYSDBA and type the following:
{code}
sqlplus / as sysdba
{code}
At the SQL prompt, type the following to be prompted to change the password:
{code}
SQL> @?/apex/apxxepwd.sql
exit
{code}
When done, open your browser and go to http://127.0.0.1:8080/apex
Workspace: Internal
Username: ADMIN
Password: password you set with apxxepwd.sql
I will prompt you to reset the password:
old password: password you set with apxxepwd.sql
new password: final_password
You can also login as the Apex Admin using http://127.0.0.1:8080/apex/apex_admin
h3. 10.e) SYS and SYSTEM password
Use the following commands to reset the SYS and SYSTEM passwords if necessary:
Login as the Oracle user:
{code}
su - oracle
{code}
Login as SYSDBA and type the following at the SQL prompt:
{code}
sqlplus / as sysdba
SQL> alter user sys identified by "password" account unlock;
SQL> alter user system identified by "password" account unlock;
SQL> exit
{code}
h3. 10.f) Uninstall Oracle 11g XE
The following will completely uninstall and remove Oracle 11g XE:
Open a terminal seesion and login as user root:
{code}
sudo su -
{code}
Enter the following:
{code}
/etc/init.d/oracle-xe stop
dpkg --purge oracle-xe
rm -r /u01/app
rm /etc/default/oracle-xe
update-rc.d -f oracle-xe remove
update-rc.d -f oracle-mount remove
update-rc.d -f oracle-shm remove
{code}
h3. 10.g) Reconfigure Oracle 11g XE
Type the following commands in a terminal window:
{code}
sudo /etc/init.d/oracle-xe stop
sudo rm /etc/default/oracle-xe
sudo /etc/init.d/oracle-xe configure
{code}
h3. 10.h) Gnome Classic desktop
Ubuntu 11 moved from the Gnome Classic desktop to Unity and removed the "Ubuntu Classic" login option. Unity was designed to make more efficient use of space given a limited screen size and touch screens. If you prefer to use the Gnome Classic desktop, enter the following into a terminal window:
{code}
sudo apt-get install gnome-panel
{code}
To log into the Gnome Classic desktop, select the "Gearwheel" at the login screen and select "Gnome Classic".
h3. 10.i) Unix vi cursor keys
The instructions in this tutorial do not require the use of any text editor. However, if you would like use the backspace and cursor keys in the "vi-editor", the following needs to be installed:
{code}
sudo apt-get install vim
{code}
h3. 10.j) Backup Database
In order to perform an online database backup using the supplied "Backup Database" script, the database needs to run in Archive-Log mode. This can be setup using the following commands:
Login as the Oracle user:
{code}
su - oracle
{code}
Login as SYSDBA and type the following:
{code}
sqlplus / as sysdba
SQL> shutdown immediate
SQL> startup mount
SQL> alter database archivelog;
SQL> alter database open;
SQL> exit
{code}
h2. 11) History
Version: A, 24-Oct-2011
- first release
Version: B, 25-Oct-2011
- reduced instructions.
- corrected errors in 6a and 8.
- new strategy addressing ORA-00845 error.
- rework of chapter 10.
Version: C, 30-Nov-2011
- corrected typo in 6a
- new procedures in 9a.
- added progress feedback to database scripts.
Version D, 14-Jan-2012
- corrected presentation errors.
- reorganized instructions.
h3. 12) References
http://download.oracle.com/docs/cd/E17781_01/install.112/e18802/toc.htm
http://askubuntu.com/questions/57297/why-has-var-run-been-migrated-to-run
http://lwn.net/Articles/436012/
https://forums.oracle.com/forums/thread.jspa?threadID=2300750&tstart=0
Kind regards and best of luck!
Dude.Excellent Blog. Thank You
Small clarification on Step **6) Oracle Home Directory, ...a) Resize the Root Partition**
Ubuntu 11.10 has Gparted available as a Ubuntu software download, DONT use that while trying the above step, instead download the ISO file from http://sourceforge.net/projects/gparted/files/gparted-live-stable/ gparted-live-0.12.0-5.iso (124.6 MB)
Burn that ISO file on a Blank DVD, reboot the Ubuntu , during startup select Boot from DVD Option if not already selected. this will take to Boot Menu Options of Gparted Live then select the first menu option, and this allows to do further action such as Re-sizing .
and once you have chosen and executed step a) . do NOT run step b) also that is "Setup External Storage"
I hope this minor clarification can avoid some confusion
Regards
Madhusudhan Rao
Edited by: MadhusudhanRao on Mar 24, 2012 11:30 PM -
Install Oracle 11gR2 Express Edition on Ubuntu Linux 11.04 (64-bit) Howto
h2. Install Oracle 11gR2 Express Edition on Ubuntu Linux 11.04 (64-bit) Howto
Version: B
Author: Dude, 24. May 2011
The following are step by step instructions how to install Oracle 11gR2 Express Edition (Beta) under Linux Ubuntu 11.04, 64-bit.
Access to the Internet is required.
The instructions cover the following additional topics:
- Converting Red Hat based Oracle XE installer to Ubuntu.
- Work-around for missing /sbin/chkconfig tool.
- Install Oracle XE into a different directory or disk volume.
- Relocate and configure the Oracle user and default login directory.
- Uninstall, reconfigure and perform first database backup.
- Notes and web links.
- Troubleshooting
h3. A) System Setup and Prerequisites
h4. A.1. System Access
You will need terminal command line, root and system console access to perform the setup tasks.
To open a Terminal at the system console:
Menu Applications > Accessories > TerminalThe following commands will enable remote ssh login with root access:
sudo apt-get install openssh-server
sudo passwd root
Verify:
ssh root@xe_server_host_nameh4. A.2. Software Prerequisites
The following is required in order to install Oracle 11gR2 XE:
sudo apt-get install alien libaio1 unixodbcThe following is not required, but it will fix backspace and arrow keys in case you prefer using the vi-editor:
sudo apt-get install vimh4. A.3. System Swap space
Minimum swap space required is 2 GB. You can increase swap space if necessary using a swap file:
To analyze current swap space and memory configuration:
sudo cat /proc/meminfo
To install a 1 GB swapfile named swapfile in /, for example:
sudo dd if=/dev/zero of=/swapfile bs=1024 count=1048576
(this may take a while)
sudo mkswap /swapfile
sudo swapon /swapfile
sudo cp /etc/fstab /etc/fstab.orig
sudo echo '/swapfile swap swap defaults 0 0' >> /etc/fstab
Verify:
sudo swapon -a
sudo swapon -sh4. A.4. Kernel Parameters
Oracle 11g XE requires the following additional kernel parameters:
sudo nano /etc/sysctl.d/60-oracle.conf
(Enter the following)
# Oracle 11g XE kernel parameters
fs.file-max=6815744
net.ipv4.ip_local_port_range=9000 65000
kernel.sem=250 32000 100 128
kernel.shmmax=536870912
(Save the file)
Note: kernel.shmmax = max possible value, e.g. size of physical RAM.
Verify: sudo cat /etc/sysctl.d/60-oracle.conf
Load new kernel parameters:
sudo service procps start
Verify:
sudo sysctl -q fs.file-max
-> fs.file-max = 6815744h4. A.5. Oracle Installation Directory
The current Oracle Installation Guide uses the same directory like in previous versions: /usr/lib/oracle/xe/app/oracle/product/11.2.0/server. However, the current Beta installation uses Oracle Flexible Architecture (OFA) and installs into /u01/app/oracle/product/11.2.0/xe. Due to size limitations of Oracle XE it may not be necessary to store the installation to a specific directory or separate volume, but it is possible:
Install Oracle XE to separate disk volume:
From the system console menu: System > Administration > Disk Utility
Select "ext3" filesystem for Oracle compatibility and specify a Volume label, e.g. Oracle.
Notice the device name e.g. /dev/sdb
Get the drive UUID:
sudo blkid
e.g. /dev/sdb: UUID="d19a2d8f-da43-4802-8bdb-0703c855e23a"
Modify /etc/fstab to automatically mount the volume at system startup:
sudo cp /etc/fstab /etc/fstab.original
sudo nano /etc/fstab
(Add the following, using determined UUID, for exmple)
UUID=d19a2d8f-da43-4802-8bdb-0703c855e23a /u01 ext3 defaults,errors=remount-ro 0 1
(Save the file)
Create the mount-point, mount the new volume and set ownership and privileges:
sudo mkdir /u01
sudo mount -a
sudo chown root:root /u01
sudo chmod 755 /u01
Verify:
df -h
or restart the systemYou can also install Oracle XE into a specific directory:
Create a symbolic link to store the installation into an existing directory, for instance:
sudo mkdir /home/oracle-xe
sudo ln -s /home/oracle-xe /u01h3. C) Oracle 11g XE Download and Installation
h4. C.1. Download and convert the Installer from Red Hat to Ubuntu
Please see section E.3. to download the Oracle 11gR2 XE installer.
Select the version listed for Linux x64.
sudo unzip linux.x64_11gR2_OracleXE.zip
sudo alien --to-deb --scripts oracle-xe-11.2.0-0.5.x86_64.rpm
(This may take a while)h4. C.2. Create a special chkconfig script
The Red Hat based installer of Oracle XE 11gR2 beta relies on +/sbin/chkconfig+, which is not used in Ubuntu. The chkconfig package available for the current version of Ubuntu produces errors and my not be safe to use. Below is a simple trick to get around the problem and install Oracle XE successfully:
Create /sbin/chconfig:
sudo nano /sbin/chkconfig
(Cut and paste the following)
#!/bin/bash
# Oracle 11gR2 XE installer chkconfig hack for Debian by Dude
file=/etc/init.d/oracle-xe
if [[ ! `tail -n1 $file | grep INIT` ]]; then
echo >> $file
echo '### BEGIN INIT INFO' >> $file
echo '# Provides: OracleXE' >> $file
echo '# Required-Start: $remote_fs $syslog' >> $file
echo '# Required-Stop: $remote_fs $syslog' >> $file
echo '# Default-Start: 2 3 4 5' >> $file
echo '# Default-Stop: 0 1 6' >> $file
echo '# Short-Description: Oracle 11g Express Edition' >> $file
echo '### END INIT INFO' >> $file
fi
update-rc.d oracle-xe defaults 80 01
(Save the file)
Set appropriate execute privileges:
chmod 755 /sbin/chkconfig
Note: You should remove the /sbin/chkconfig file after successful installation of Oracle XE.
h4. C.3. Install and configure Oracle XE
sudo dpkg --install ./oracle-xe_11.2.0-1.5_amd64.deb
/etc/init.d/oracle-xe configure
(This will take a while)
Remove the /sbin/chkconfig script, which is no longer needed.
sudo rm /sbin/chkconfigh4. C.4. Relocate and Configure the Oracle user login
The Oracle XE installer specifies /u01/app/oracle as the login directory for the Oracle user. Although not really necessary, the following will relocate the Oracle user $HOME to a standard location and create standard /etc/skel login files:
Exit all Oracle user sessions:
sudo /etc/init.d/oracle-xe stop
sudo kill -9 `ps -ef | grep oracle | grep -v grep | awk '{print $2}'`
sudo userdel oracle
sudo useradd -s /bin/bash -G dba -g dba -m oracle
sudo passwd oracle
Verify:
sudo id oracle
-> uid=1001(oracle) gid=1001(dba) groups=1001(dba)h4. C.5. Setup Oracle environment variables
In order to use sqlplus and other tools, the Oracle account requires certain environment variables. The following will set these variables automatically at every interactive Oracle login:
sudo echo '. /u01/app/oracle/product/11.2.0/xe/bin/oracle_env.sh' >> /home/oracle/.bashrch4. C.6. Oracle sudo root access
It is not essential to allow the Oracle user to use sudo, but it is convenient:
usermod -G admin oracle
Verify:
id oracle
-> uid=1001(oracle) gid=1001(dba) groups=1001(dba),120(admin)
sudo su -
-> Enter Oracle account passwordh4. C.7. Oracle 11g XE Post-installation
After you install Oracle Database XE, its graphical user interface is only available from the local server, but not remotely.
The following will correct the problem if necessary:
Login as user Oracle or use:
su - oracle
sqlplus / as sysdba
At the SQL prompt, enter the following command:
EXEC DBMS_XDB.SETLISTENERLOCALACCESS(FALSE);
exith3. D) Unintstall, Reconfigure and Troubleshooting
h4. D.1. Uninstall Oracle 11g XE
The following will completely uninstall and remove Oracle 11g XE:
Login as user root:
sudo su -
/etc/init.d/oracle-xe stop
dpkg --purge oracle-xe
rm -r /u01/app
rm /etc/default/oracle-xe
update-rc.d -f oracle-xe removeh4. D.2. Reconfigure Oracle 11g XE
Type the following in a terminal window:
/etc/init.d/oracle-xe stop
sudo rm /etc/default/oracle-xe
/etc/init.d/oracle-xe configureh4. D.3. Enable Archivelog mode and perform a database backup
Login as user Oracle:
su - oracle
sqlplus / as sysdba
At the SQL prompt, enter the following commands:
shutdown immediate
startup mount
alter database archivelog;
alter database open;
exit
Login to system console of the Oracle user account:
Select Applications > Oracle Database 11g Express Edition > Backup Databaseh3. E) Notes
h4. E.1. Oracle 11g XE limitiations overview
- It will consume, at most, processing resources equivalent to one CPU.
- Only one installation of Oracle Database XE can be performed on a single computer.
- The maximum amount of user data in an Oracle Database XE database cannot exceed 11 GB.
- The maximum amount of RAM that Oracle XE uses cannot exceed 1 GB, even if more is available.
- HTTPS is not supported natively with the HTTP listener built into Oracle Database XE.
h4. E.2. Documentation and Links
Official documentation for Oracle 11gR2 XE can be found at:
http://www.oracle.com/pls/xe112/homepage
h4. E.3. Oracle 11g XE downloads
The Installer is available from the Oracle Technology Network at:
http://www.oracle.com/technology/products/database/xe
http://www.oracle.com/technetwork/database/express-edition/downloads/index.html
h4. E.4 APEX links and archives
The APEX archives can be found at:
http://www.oracle.com/technetwork/developer-tools/apex/application-express/all-archives-099381.html
The APEX download site is:
http://www.oracle.com/technetwork/developer-tools/apex/downloads/index.html
h3. F) Troubleshooting
... in progress
Regards and best of luck!
Edited by: Dude on May 25, Version B: various corrections. chkconfig package (A.2.) not required.even though I am admin user.Admin user is a MS Windows term, that does not apply to Linux or Unix in the same fashion.
The configuration script tells you "You must be root user to run the configure script. Login as root user and
then run the configure script."
This is most likely correct because your account is not root and does not have UID 0. What you can do is to login as root e.g. sudo su -, as the message suggest, or use "sudo /etc/init.d/oracle-xe configure", provided your account is defined in the /etc/sudoers file to perform root/admin actions.
Btw, do not modify /etc/passwd and /etc/group to give you admin privileges or try to create a another root account under a different name. That's not the way it works and usually leads to nasty problems.
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