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OpenERP is Enterprise Resource Planning software. It provides a complete, integrated ERP solution for small and medium sized businesses and organizations. OpenERP includes financial and analytic accounting, warehouse and inventory management, sales and purchase management, customer and supplier relations management, association management, tasks automation, human resource management, marketing campaign, document management, help desk, e-commerce integration, and point of sale functionality.

OpenERP features an application server which uses PostgreSQL as database back-end, with a web-based client. It is written in the Python programming language, with a highly modular design which allows for the rapid development of new modules through Open Object RAD. OpenERP developers have a strong commitment to free software.

A thriving support and development community has grown up around OpenERP, providing free technical support, bug-fixing, new development, and support services. OpenERP provides extensive documentation in various electronic formats, as well as hardcopy. The company responsible for development of OpenERP earns profits through partnership services with OpenERP consultants, and by providing support, training, hosting services, software development, and software quality testing and verification.

Before Installing

Installing PostgreSQL

OpenERP uses the PostgreSQL database, which should be installed and configured before installing OpenERP. Follow PostgreSQL#Installing PostgreSQL. Complete these installation instructions, but do not perform any other configuration from that page. Return to this page for additional configuration steps.

Configuring PostgreSQL for local use on your own machine

If you plan to use PostgreSQL and OpenERP on the same machine, you will need to configure PostgreSQL to listen on the localhost's 5432 TCP port. Open /var/lib/postgres/data/postgresql.conf and navigate to the CONNECTIONS AND AUTHENTICATION section. Uncomment the listen_addresses and port lines. Save the file. When complete, the section should appear as follows:


# - Connection Settings -

listen_addresses = 'localhost'          # what IP address(es) to listen on;
                                        # comma-separated list of addresses;
                                        # defaults to 'localhost', '*' = all
                                        # (change requires restart)
port = 5432                             # (change requires restart)

Restart PostgreSQL so that it uses the newly changed conf file.

Verify that PostgreSQL is listening on the localhost port 5432:

# ss -anpt
tcp        0      0*               LISTEN      13420/postgres

Configuring PostgreSQL for remote use over a network

If you need remote access to PostgreSQL over a network, read PostgreSQL#Configure PostgreSQL to be accessible from remote hosts.

Setting up PostgreSQL to run with OpenERP

Next, it is necessary to create a new PostgreSQL user for OpenERP. In this example, the user is 'yourusername', but you should replace this with your Arch system login username. First, log in as the default PostgreSQL superuser, 'postgres', by executing the following command from the CLI:

  • If you have sudo set up:
$ sudo -i -u postgres
  • Otherwise:
$ su
# su - postgres

Once logged in as postgres, begin the process of creating the 'yourusername' user, with the folowing command:

$ createuser yourusername -P

You will first be asked for a password. For highly secure yet easy to remember passwords, consider using a Diceware Passphrase. Re-enter the password as requested. The next three questions should be answered in sequence with n, y, and n. Shall the new role be a superuser? n Shall the new role be allowed to create database? y Shall the new role be allowed to create more new roles? n

You may also use options as below to skip the interactive questions to set the attributes:

$ createuser yourusername --createdb --login --no-superuser --no-createrole -P

Once you are finished answering these questions, type the word 'exit' to log out from PostgreSQL as the postgres superuser.

You may want to enable postgresql with systemd so it will start at boot.

This completes the installation and setup of PostgreSQL for use with OpenERP under Arch Linux. Additional detailed information about PostgreSQL configuration may be found in the PostgreSQL article, and the PostgreSQL Manuals webpage. Also, there is a powerful GUI PostgreSQL Admin tool, pgAdmin, which is available in the Arch repositories.

Installation and configuration

OpenERP requires the installation of the OpenERP Server, OpenERP comes with a webserver so you can use your web browser to use it. Currently, OpenERP is not available in the official repositories, but it is available through the Arch User Repository.


Install openerpAUR from the AUR.


The configuration file of OpenERP server is at /etc/openerp/openerp-server.conf. Make it look like this:

 ; This is the password that allows database operations:
 ; admin_passwd = admin
 db_host = localhost
 db_port = 5432
 db_user = yourusername  ##this is username you created in postegres.
 db_password =

You can see a complete list of configuration by using below command, it will save a copy of configuration file to ~/.openerp_serverrc.

openerp-server -s

For more information, use

openerp-server --help

If you want OpenERP to run in multiple process, add the following line to openerp-server.conf.

workers = n # change n to a number you like.

Starting the server

Use the command below to enable autostart openerp server at boot:

systemctl enable openerp.service

Use the command below to start openerp:

systemctl start openerp.service

Logging in

Go to http://localhost:8069 in your web browser and you will be greeted by the OpenERP login page.

Additional OpenERP Documentation

There are various sources of OpenERP documentation. The best place to start is the OpenERP Documentation webpage. This page links to different online documents, including detailed installation instructions. Additionally, there is an online copy of the book, "OpenERP for Retail and Industrial Management",and can be purchased from Amazon.com. While OpenERP documentation, such as "OpenERP for Retail and Industrial Management" is freely downloadable, it does not come with a free documentation license.

OpenERP Community

The OpenERP Community is centered upon the Open Object website. Free technical support for OpenERP may be found in the webforumsTemplate:Linkrot, a mailing listTemplate:Linkrot which is linked to the webforums, an IRC channel on freenode.net, an OpenERP wiki, and the Official ERP Documentation webpage. The latest news may be found on OpenERP Planet, while various OpenERP screencasts are provided on OpenERP TV. Fee-based support services are provided by OpenERP PartnersTemplate:Linkrot.

Open Object RAD

Open Object is the Python-based Rapid Application Development framework for developing OpenERP modules. It allows developers and businesses to customize OpenERP for specific needs. Open Object RAD development work is centered upon the Open Object Launchpad page. Developer news and blogs are published on Open Object Planet. There are pages for software downloads, OpenERP module downloadsTemplate:Linkrot, and development source code downloads.