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Install PostgreSQL 8.4 Database Server on CentOS, Fedora, Red Hat

Updated by JR on Feb 8, 2011 in CentOS, Featured, Fedora, Linux, Red Hat (RHEL), Server Guides, Servers, SQL | 23 comments

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This is quick guide howto install PostgreSQL 8.4 (current stable 8.4.7) database server on CentOS, Fedora and Red Hat. Fedora 14, Fedora 13, CentOS 5.5 and Red Hat (RHEL) 5.5 has PostgreSQL 8.4 database server as default so extra repositories is not needed. Personally, I like to use Postgres own repositories, because the latest version of PostgreSQL may be quickly and easily installed. The following commands run as root and postgres user, so “su -” or “sudo -i” first.

Install PostgreSQL 8.4 Database Server Using PostgreSQL’s repositories

Install PostgreSQL repository:

## CentOS
rpm -Uvh http://yum.pgrpms.org/reporpms/8.4/pgdg-centos-8.4-2.noarch.rpm
 
## Fedora
rpm -Uvh http://yum.pgrpms.org/reporpms/8.4/pgdg-fedora-8.4-2.noarch.rpm
 
## Red Hat
rpm -Uvh http://yum.pgrpms.org/reporpms/8.4/pgdg-redhat-8.4-2.noarch.rpm

Install postgresql and postgresql-server packages from PostgreSQL’s repositories:

yum install postgresql postgresql-server postgresql-contrib

Alternative PostgreSQL 8.4 Install Method for Fedora 12, Fedora 13, CentOS 5.5, Red Hat (RHEL) 5.5

Install postgresql and postgresql-server packages on CentOS 5.5 and Red Hat (RHEL) 5.5:

yum install postgresql84 postgresql84-server postgresql84-contrib

Install postgresql and postgresql-server packages on Fedora 12 and Fedora 13:

yum install postgresql postgresql-server postgresql-contrib

Configure PostgreSQL 8.4 Database Server

Initialize the cluster first with initdb command:

service postgresql initdb
## OR ##
/etc/init.d/postgresql initdb

Edit /var/lib/pgsql/data/postgresql.conf file:

nano -w /var/lib/pgsql/data/postgresql.conf

Set PostgreSQL server to listen all addresses and Change PostgreSQL port (default is 5432). Add/Uncomment/Edit following lines:

listen_addresses = '*'
port = 5432

Edit /var/lib/pgsql/data/pg_hba.conf file:

nano -w /var/lib/pgsql/data/pg_hba.conf

Add (example) your local network with md5 passwords:

# Local networks
host	all	all	xx.xx.xx.xx/xx	md5
# Example
host	all	all	10.20.4.0/24	md5

Start/Restart PostgreSQL Server:

service postgresql start
## OR ##
/etc/init.d/postgresql start

Change to postgres user:

su postgres

Create test database (as postgres user):

createdb test

Login test database (as postgres user):

psql test

Create New “testuser” Role with Superuser and Password:

CREATE ROLE testuser WITH SUPERUSER LOGIN PASSWORD 'test';

Open PostgreSQL Port (5432) on Iptables Firewall (as root user again)

Edit /etc/sysconfig/iptables file:

nano -w /etc/sysconfig/iptables

Add following line before COMMIT:

-A RH-Firewall-1-INPUT -m state --state NEW -m tcp -p tcp --dport 5432 -j ACCEPT

Restart Iptables Firewall:

service iptables restart
## OR ##
/etc/init.d/iptables restart

Test remote connection:

psql -h dbserver -U testuser test

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23 Comments

Dhawal / June 14, 2010

after editting hba file , I wasn’t able to start postgresql. Then I tried next thing that is iptable , but it says ‘having error in line 13′ which is the line I added before comet as you said.

Don’t know what is wrong , my system is i686 archetecture and I have installed postgresql for that only but still their is problem. I can’t restart or start.

Reply
- JR / June 15, 2010
  
  Hi Dhawal,
  
  It is impossible to say any reason without seeing to conf files.
  
  So could you post your /var/lib/pgsql/data/pg_hba.conf file and your /etc/sysconfig/iptables file?
  
  Reply
Andrus / June 18, 2010

http://yum.pgsqlrpms.org/reporpms/8.4/pgdg-fedora-8.4-1.noarch.rpm

returns 404 error

How to install PostgreSql 8.4 on FC 11 RC ?

Reply
- JR / June 18, 2010
  
  Hi Andrus,
  
  Working address is currently:
  http://yum.pgsqlrpms.org/reporpms/8.4/pgdg-fedora-8.4-2.noarch.rpm
  
  I updated it to this guide also.
  
  I have not tested this guide with Fedora 11, but I think this should work nicely with Fedora 11 (and even fc10, fc9…), because PostgreSQL 8.4 doesn’t have any dependencies to Fedora 12 or Fedora 13 packages.
  
  Please let me know, if you get it working or if you have any problems?
  
  Reply
Andrus / June 18, 2010

Thank you.
In Fedora 11 there is no /etc/sysconfig/iptables file mentioned.
How to open 5432 port? How to find router IP address ? Maybe router needs also configured.

Where to find instructions to install latest mono + mod_mono in Fedora 11 ?
yum mod_mono installs old 2.4 version.

Andrus.

Reply
- JR / June 20, 2010
  
  In Fedora 11 try add configurations to /etc/iptables.up.rules file.
  
  It is difficult to say anything about network configuration without seeing it.
  
  Reply
  - Andrus / June 21, 2010
    
    [root@server /etc]# ls /etc/ipt*
    ls: cannot access /etc/ipt*: No such file or directory
    
    There is no to /etc/iptables.up.rules in Fedora 11
    
    Reply
    - JR / June 21, 2010
      
      Ok, I do not have Fedora 11 now, but then try simple something like following (as root):
      
      /sbin/iptables -I INPUT 1 -p tcp --dport 5432 -j ACCEPT ## OR ## /sbin/iptables -I INPUT 1 -p tcp --dport postgres -j ACCEPT
      
      Save rules (as root):
      
      /sbin/service iptables save
      
      Reply
Andrus / June 18, 2010

CREATE ROLE testuser WITH SUPERUSER LOGIN PASSWORD=’test’;

is incorrect. correct is

CREATE ROLE testuser WITH SUPERUSER LOGIN PASSWORD ‘test’;

Reply
- JR / June 20, 2010
  
  Yes you’re right, it’s typo.
  
  I fix it to guide.
  
  Thanks!
  
  Reply
Nick Aubert / July 19, 2010

Another typo that got me, because I was copy-n-pasting. That should be

listen_addresses = ‘*’

*not*

listen_addressses = ‘*’

Count the S’s

Reply
- JR / July 19, 2010
  
  Hi Nick,
  
  Thans for the correction!
  
  Updated guide again… :)
  
  Reply
Patrick Balm / August 27, 2010

I would like to recommend to also install the contrib libraries (for VACUUMing etc),
since v8.2 it is a separate package (postgresql84-contrib)

yum install postgresql84 postgresql84-server postgresql84-contrib

/patrick

Reply
- JR / August 27, 2010
  
  Hi Patrick,
  
  Thanks for the tip!
  
  I added it in the guide.
  
  Reply
sankar / October 30, 2010

Hi
i have followed your guide and installed the pgsql. i am using fedora 12.
i have done the following

# rpm -Uvh http://yum.pgsqlrpms.org/reporpms/8.4/pgdg-fedora-8.4-2.noarch.rpm
# yum install postgresql postgresql-server postgresql-contrib

but when i run the below command i get the error like
# service postgresql initdb

the error i get
/etc/init.d/postgresql: line 24: /etc/sysconfig/network: No such file or directory

i have just started learning linux 2 days ago so i have no idea how do i solve problem. please guide me to fix it

Reply
- JR / October 30, 2010
  
  Hi sankar,
  
  Are you running service postgresql initdb command as root?
  
  Could you post following command output:
  
  ls -la /etc/sysconfig/network
  
  Reply
  - sankar / October 30, 2010
    
    Hi,
    Yes i am running those command from root
    
    [root@localhost Sankar]# service postgresql initdb
    /etc/init.d/postgresql: line 24: /etc/sysconfig/network: No such file or directory
    
    [root@localhost Sankar]# ls -la /etc/sysconfig/network
    ls: cannot access /etc/sysconfig/network: No such file or directory
    
    [root@localhost Sankar]#
    
    please help i am stuck!!
    with regards………
    
    Reply
    - JR / October 31, 2010
      
      Okey you don’t have /etc/sysconfig/network file. Is your network working normally?
      
      You could create /etc/sysconfig/network file with following command (as root):
      
      echo "NETWORKING=yes" > /etc/sysconfig/network
      
      Then try again and see what happens?
      
      Btw. I wonder just why you’ve installed Fedora 12 distro a few days ago? Fedora 14 is coming very soon.
      
      Reply
Stephen Hoffmann / December 10, 2010

On RHEL 6, I am getting this after adding your repo successfully.

http://yum.pgsqlrpms.org/8.4/redhat/rhel-6Server-x86_64/repodata/repomd.xml: [Errno 14] HTTP Error 404 : http://yum.pgsqlrpms.org/8.4/redhat/rhel-6Server-x86_64/repodata/repomd.xml
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: pgdg84. Please verify its path and try again

Reply
- JR / December 10, 2010
  
  Hi Stephen,
  
  Actually pgsqlrmps not working with RHEL 6 so try pgrpms, install following instead:
  
  rpm -Uvh http://yum.pgrpms.org/reporpms/8.4/pgdg-redhat-8.4-2.noarch.rpm
  
  And then continue installation procedure normally. I updated this guide to use pgrpms.org…
  
  Reply
ravindra / May 6, 2011

hi jr i am stuck..
when trying to change to postgres i am getting
bash 3.2$

whats the problem???
though there is user created in /etc/passwd as postgres by default
please help me out

Reply
- dali / September 28, 2011
  
  no problem at all , postgres is the account under it postmaster is running.
  
  Reply
Lorenzo / July 6, 2011

GREAT!!!!! THANKS THANKS THANKS

Reply

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Install PostgreSQL 8.4 Database Server on CentOS, Fedora, Red Hat

Install PostgreSQL 8.4 Database Server Using PostgreSQL’s repositories

Alternative PostgreSQL 8.4 Install Method for Fedora 12, Fedora 13, CentOS 5.5, Red Hat (RHEL) 5.5

Configure PostgreSQL 8.4 Database Server

Open PostgreSQL Port (5432) on Iptables Firewall (as root user again)

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