Install FireBird Database on CentOS 8 - CentLinux


Tuesday, 12 May 2020

Install FireBird Database on CentOS 8

Install FireBird Database on CentOS 8

In this article, you will learn how to install FireBird database on CentOS 8 server. It is a complete step by step guide to install FireBird including resolution of each installation error.


This Article Provides:


What is FireBird Database? :

FireBird is an open source RDBMS (Relational Database Management System). FireBird is originally a fork of Borland's open source edition of Interbase in 2000, but since then FireBird code has been changed a lot.

Furthermore, you should be aware that Firebird 3 won't open databases that were created by older versions. So before taking down your existing setup, you should back up all your databases in order that you can restore them later under Firebird 3.


FireBird Database Features:

Some of the notable features of FireBird database are:

  • Full support for stored procedures and triggers
  • Referential integrity
  • Full ACID compliant transactions
  • Support for External Functions
  • Careful writes - fast recovery, no need for transaction logs
  • Incremental backups
  • Full cursor implementation in PSQL
  • Third-party tools, including GUI administrative tools and replication tools


Environment Specification:

We are using a KVM based CentOS 8 virtual machine with following specification.

  • CPU - 3.4 Ghz (2 cores)
  • Memory - 2 GB
  • Storage - 20 GB
  • Operating System - CentOS 8.1
  • Hostname –
  • IP Address - /24


Update CentOS 8 Software Packages:

Connect with as root user by using a ssh tool.

Update CentOS 8 software packages by using the dnf command.

[root@firebird-02 ~]# dnf update -y ... Upgraded: coreutils-8.30-6.el8_1.1.x86_64 coreutils-common-8.30-6.el8_1.1.x86_64 firewalld-0.7.0-5.el8_1.1.noarch firewalld-filesystem-0.7.0-5.el8_1.1.noarch kernel-tools-4.18.0-147.8.1.el8_1.x86_64 kernel-tools-libs-4.18.0-147.8.1.el8_1.x86_64 kexec-tools-2.0.19-12.el8_1.2.x86_64 libsss_autofs-2.2.0-19.el8_1.1.x86_64 libsss_certmap-2.2.0-19.el8_1.1.x86_64 libsss_idmap-2.2.0-19.el8_1.1.x86_64 libsss_nss_idmap-2.2.0-19.el8_1.1.x86_64 libsss_sudo-2.2.0-19.el8_1.1.x86_64 nftables-1:0.9.0-14.el8_1.1.x86_64 openssl-1:1.1.1c-2.el8_1.1.x86_64 openssl-libs-1:1.1.1c-2.el8_1.1.x86_64 python3-firewall-0.7.0-5.el8_1.1.noarch python3-perf-4.18.0-147.8.1.el8_1.x86_64 python3-rpm-4.14.2-26.el8_1.x86_64 rpm-4.14.2-26.el8_1.x86_64 rpm-build-libs-4.14.2-26.el8_1.x86_64 rpm-libs-4.14.2-26.el8_1.x86_64 rpm-plugin-selinux-4.14.2-26.el8_1.x86_64 rpm-plugin-systemd-inhibit-4.14.2-26.el8_1.x86_64 sssd-client-2.2.0-19.el8_1.1.x86_64 sssd-common-2.2.0-19.el8_1.1.x86_64 sssd-kcm-2.2.0-19.el8_1.1.x86_64 sssd-nfs-idmap-2.2.0-19.el8_1.1.x86_64 systemd-239-18.el8_1.5.x86_64 systemd-libs-239-18.el8_1.5.x86_64 systemd-pam-239-18.el8_1.5.x86_64 systemd-udev-239-18.el8_1.5.x86_64 Installed: kernel-4.18.0-147.8.1.el8_1.x86_64 kernel-core-4.18.0-147.8.1.el8_1.x86_64 kernel-modules-4.18.0-147.8.1.el8_1.x86_64 Removed: kernel-4.18.0-80.el8.x86_64 kernel-core-4.18.0-80.el8.x86_64 kernel-modules-4.18.0-80.el8.x86_64 Complete!


Install LibTomMath Library on CentOS 8:

FireBird database requires LibTomMath library, a free open source portable number theoretic multiple-precision integer library.

LibTomMath package is not available in standard yum repositories. Therefore, we need to install the EPEL (Extra Packages for Enterprise Linux) first.

[root@firebird-02 ~]# dnf install epel-release -y ... Installed: epel-release-8-8.el8.noarch Complete!

Build cache for EPEL and other yum repositories.

[root@firebird-02 ~]# dnf makecache CentOS-8 - AppStream 4.0 kB/s | 4.3 kB 00:01 CentOS-8 - Base 3.3 kB/s | 3.9 kB 00:01 CentOS-8 - Extras 1.7 kB/s | 1.5 kB 00:00 Extra Packages for Enterprise Linux Modular 8 - 4.1 kB/s | 6.6 kB 00:01 Extra Packages for Enterprise Linux 8 - x86_64 5.5 kB/s | 6.7 kB 00:01 Metadata cache created.

We can now install LibTomMath library from EPEL repository by using dnf command.

[root@firebird-02 ~]# dnf install -y libtommath ... Installed: libtommath-1.1.0-1.el8.x86_64 Complete!


Install FireBird Database on CentOS 8:

FireBird 3.0.5 is the latest stable release that is available at the time of this writing. Downloads are available for various platforms in this page, so you can download FireBird for your respective operating system.


Copy the link of the FireBird compressed tarball and download it by using wget command.

[root@firebird-02 ~]# wget --2020-05-11 01:55:06-- Resolving ( Connecting to (||:443... connected. HTTP request sent, awaiting response... 302 Found Location: [following] --2020-05-11 01:55:07-- Resolving ( Connecting to (||:443... connected. HTTP request sent, awaiting response... 200 OK Length: 8561290 (8.2M) [application/octet-stream] Saving to: âFirebird-â Firebird- 100%[===================>] 8.16M 663KB/s in 18s 2020-05-11 01:55:27 (466 KB/s) - âFirebird-â saved [8561290/8561290]

Extract FireBird tarball using tar command.

[root@firebird-02 ~]# tar xvf Firebird- Firebird- Firebird- Firebird- Firebird-

We can install FireBird database by using script. But during FireBird installation, we have encountered following errors.

/opt/firebird/bin/gsec: error while loading shared libraries: cannot open shared object file: No such file or directory


/opt/firebird/bin/gsec: error while loading shared libraries: cannot open shared object file: No such file or directory

The reason behind the above errors is that the FireBird is looking for older versions of these libraries, while in CentOS 8 the new versions of these libraries has been installed.

To overcome these issues, we simply create the softlinks to the new version of these shared libraries.

[root@firebird-02 ~]# ln -s /usr/lib64/ /usr/lib64/ [root@firebird-02 ~]# ln -s /usr/lib64/ /usr/lib64/

Now, go to FireBird setup directory and start installation.

[root@firebird-02 ~]# cd Firebird- [root@firebird-02 Firebird-]# ./ Firebird Installation Press Enter to start installation or ^C to abort Extracting install data Updated /etc/services Please enter new password for SYSDBA user: Str0ngPa55word Install completed

Installer creates a systemd service for FireBird database.  The FireBird database engine is run in Superserver mode by default. However, you can customize it by using /etc/firebird/firebird.conf configuration file.  For more basic information about Firebird database, we recommend you to read The Firebird Book Second Edition: Volume 1: Firebird Fundamentals by Helen Borrie.

Check the status of the FireBird database service.

[root@firebird-02 Firebird-]# cd [root@firebird-02 ~]# systemctl status firebird-superserver.service â firebird-superserver.service - Firebird Database Server ( SuperServer ) Loaded: loaded (/usr/lib/systemd/system/firebird-superserver.service; enabl> Active: active (running) since Mon 2020-05-11 02:07:57 PKT; 2min 21s ago Process: 27710 ExecStart=/opt/firebird/bin/fbguard -pidfile /var/run/firebir> Main PID: 27712 (firebird) Tasks: 4 (limit: 5916) Memory: 2.0M CGroup: /system.slice/firebird-superserver.service ââ27711 /opt/firebird/bin/fbguard -pidfile /var/run/firebird/firebi> ââ27712 /opt/firebird/bin/firebird May 11 02:07:57 systemd[1]: Starting Firebird Databa> May 11 02:07:57 systemd[1]: firebird-superserver.ser> May 11 02:07:57 systemd[1]: firebird-superserver.ser> May 11 02:07:57 systemd[1]: Started Firebird Databas>

Installer does not include the FireBird binaries directory in the PATH environmental variable. We need to do it by ourselves.

Edit .bash_profile of root user.

[root@firebird-02 ~]# vi ~/.bash_profile

Locate PATH variable and update it as follows.


Save and exit.

We need to execute .bash_profile once, to update PATH environment variable for current session.

[root@firebird-02 ~]# source ~/.bash_profile

Check version of FireBird database.

[root@firebird-02 ~]# firebird -z Firebird TCP/IP server version LI-V3.0.5.33220 Firebird 3.0

If you are planning to access your FireBird database server across the network, then you have to enable the FireBird default service port in Linux firewall.

[root@firebird-02 ~]# firewall-cmd --permanent --add-port=3050/tcp success [root@firebird-02 ~]# firewall-cmd --reload success

FireBird database has been installed on CentOS 8 server.


FireBird Basic Commands:

Connect to sample FireBird database i.e. employee by using isql command as sysdba user.

[root@firebird-02 ~]# isql -u sysdba -p Str0ngPa55word employee Database: employee, User: SYSDBA SQL>

We can list database users by using following command.

SQL> show users; Users in the database 1 #SYSDBA

Currently, we have only one user in the database, that is why the command provided a single user list.

Check the version of iSQL and FireBird database.

SQL> show version; ISQL Version: LI-V3.0.5.33220 Firebird 3.0 Server version: Firebird/Linux/AMD/Intel/x64 (access method), version "LI-V3.0.5.33220 Firebird 3.0" on disk structure version 12.0

List down the tables in the employee database.


Query data from COUNTRY table by using SELECT statement.

SQL> select * from country; COUNTRY CURRENCY =============== ========== USA Dollar England Pound Canada CdnDlr Switzerland SFranc Japan Yen Italy Euro France Euro Germany Euro Australia ADollar Hong Kong HKDollar Netherlands Euro Belgium Euro Austria Euro Fiji FDollar Russia Ruble Romania RLeu

Our CentOS 8 based FireBird database has been working fine.

We have successfully installed FireBird database on CentOS 8 server. If you feel difficuly understanding the CentOS 8 commands provided in this article, we recommend you should attend RHEL 8/CentOS 8 Linux System Administration (RHCSA) Level I training at Udemy.

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