How to Install Dolibarr ERP + CRM System on Ubuntu 18.04 LTS

Updated: 28 September 2026 · Applies to: Dolibarr 24 on Ubuntu 24.04, Debian 12, AlmaLinux 9 and Rocky Linux 9

Ubuntu 18.04 is end of life. Dolibarr is an open-source ERP and CRM for small and medium businesses (customers, invoices, orders, stock, projects). The current version is Dolibarr 24.

Before you start

• A VPS or dedicated server with a fresh Ubuntu 24.04 / Debian 12 or AlmaLinux 9 / Rocky Linux 9 installation, and root or sudo access.
• A domain or subdomain pointing to the server (an A record), if you want HTTPS.
• The system updated: apt update && apt upgrade or dnf upgrade.

Install Apache, MariaDB and PHP

Ubuntu 24.04 / Debian 12:

apt install apache2 mariadb-server php libapache2-mod-php php-mysql php-xml php-mbstring php-curl php-zip php-gd php-intl
systemctl enable --now apache2 mariadb

AlmaLinux 9 / Rocky Linux 9 (choose a current PHP stream first):

dnf module reset php && dnf module enable php:8.3
dnf install httpd mariadb-server php php-fpm php-mysqlnd php-xml php-mbstring php-gd php-intl php-opcache php-pecl-zip
systemctl enable --now httpd mariadb php-fpm

Secure MariaDB (set a root password or keep socket login, remove test data): mariadb-secure-installation.

Also install: apt install php-curl php-gd php-intl php-mbstring php-xml php-zip php-imap php-soap (Ubuntu/Debian) and restart Apache.

On AlmaLinux/Rocky: dnf install php-gd php-intl php-mbstring php-xml php-soap php-pecl-zip, then systemctl restart php-fpm httpd.

Create a database

mariadb -u root -p
CREATE DATABASE dolibarr CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
CREATE USER 'dolibarruser'@'localhost' IDENTIFIED BY 'Strong-Password';
GRANT ALL PRIVILEGES ON dolibarr.* TO 'dolibarruser'@'localhost';
FLUSH PRIVILEGES;
EXIT;

Download Dolibarr

Download the latest stable zip from dolibarr.org or GitHub releases, extract it to /var/www/dolibarr, create a documents folder outside the web root (mkdir /var/lib/dolibarr-docs) and give both to the web server user.

Create the Apache site

Create /etc/apache2/sites-available/example.com.conf (Ubuntu/Debian) or /etc/httpd/conf.d/example.com.conf (AlmaLinux/Rocky):

<VirtualHost *:80>
    ServerName example.com
    ServerAlias www.example.com
    DocumentRoot /var/www/dolibarr/htdocs
    <Directory /var/www/dolibarr/htdocs>
        AllowOverride All
        Require all granted
    </Directory>
</VirtualHost>

Ubuntu/Debian: a2ensite example.com && a2enmod rewrite && systemctl reload apache2. AlmaLinux/Rocky: apachectl configtest && systemctl reload httpd.

Add a free SSL certificate

apt install certbot python3-certbot-apache                     # Ubuntu / Debian
dnf install epel-release && dnf install certbot python3-certbot-apache   # AlmaLinux / Rocky
certbot --apache -d example.com -d www.example.com

Certbot installs a timer that renews the certificate automatically; test it with certbot renew --dry-run.

Run the installer

Create an empty htdocs/conf/conf.php writable by the web server, open https://example.com/install/, enter the documents folder /var/lib/dolibarr-docs and the database details, and create the admin user. Afterwards lock the installer: touch /var/lib/dolibarr-docs/install.lock and make conf.php read-only.

Note: On AlmaLinux 9 / Rocky Linux 9 SELinux is on. Let Apache/Nginx write where the application needs it, for example: semanage fcontext -a -t httpd_sys_rw_content_t "/var/www/dolibarr/htdocs/storage(/.*)?" && restorecon -R /var/www/dolibarr/htdocs, and allow outgoing connections if the app calls APIs: setsebool -P httpd_can_network_connect 1.

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