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  4. Installing on Ubuntu and Debian (Manual)
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Installing on Ubuntu and Debian (Manual)

Preliminaries

Check disk size

$ df -h

Create a user named openkm

$ sudo adduser openkm

You can easily generate random passwords at:

Check if partners' channels are enabled

$ cat /etc/apt/sources.list

In case they are not enabled, please enable them.

$ sudo vim /etc/apt/sources.list

$ sudo apt-get update

Check server configuration

$ wget -Nc smxi.org/inxi
$ sudo chmod +x inxi
$ sudo ./inxi -F

Increase ulimit

$ sudo vim /etc/pam.d/su

uncomment the following line

#session    required   pam_limits.so

to

session    required   pam_limits.so

$ sudo vim /etc/security/limits.conf

and add the following lines to the end of the file (before the line # End of file)

*   soft  nofile   6084

*   hard  nofile   6084

Now reboot the server, execute ulimit -n, and check if the open file limits are updated.

Checking Java version

$ java -version

 If Java is correctly installed on your computer, the name and version of the Java virtual machine are displayed:

openjdk version "1.8.0_212"
OpenJDK Runtime Environment (build 1.8.0_212-8u212-b03-0ubuntu1.18.04.1-b03)
OpenJDK 64-Bit Server VM (build 25.212-b03, mixed mode)

The Java version may differ depending on your installed one, but we recommend the latest 1.8 release.

Install Java

Perform these steps only if Java 8 is not installed on your server.

In the case of Ubuntu

$ sudo apt-get update
$ sudo apt-get install openjdk-8-jdk

In the case of Debian

$ su -
$ apt-get update
$ apt-get install openjdk-8-jdk
$ exit

Set OpenJDK 1.8 as your default Java version

Perform this only if Java 8 is not your default Java version.

$ sudo update-alternatives --config java

Installing database

Install MySQL if you do not have it already installed:

$ sudo apt-get install mysql-server

When you install MySQL, the installer will ask you for a password for the root user. Keep this password handy.

Also, you can install MariaDB, which replaces MySQL in the latest versions:

$ sudo apt-get install mariadb-server

Change MySQL root password

Do it only if it's necessary to change MySQL root password.

Method 1

$ /usr/bin/mysqladmin -u root -h localhost password 'password.'

Method 2

$ sudo /etc/init.d/mysql stop
$ sudo mysqld --skip-grant-tables &
$ mysql -u root mysql
> UPDATE user SET Password=PASSWORD('YOURNEWPASSWORD') WHERE User='root';
> FLUSH PRIVILEGES;
> exit;

MySQL, in this case, has not been started in service, and the process must be killed to stop MySQL and start it again as a service.

Method 3

$ mysql
> UPDATE mysql.user SET Password=PASSWORD('MyNewPass') WHERE User='root';
> flush privileges;

Method 4

$ sudo /etc/init.d/mysql stop
$ mysqld_safe --skip-grant-tables &
$ mysql -u root mysql
> UPDATE user SET Password=PASSWORD('YOURNEWPASSWORD') WHERE User='root';
> FLUSH PRIVILEGES;
> exit;

MySQL, in this case, has not been started in service. The process must be killed to stop MySQL and start it again as a service.

More information at MySQL: Reseting permissions.

Check InnoDB is the default MySQL engine

$ mysql -h localhost -u root -p

> show engines;

It should look something like this:

| InnoDB | DEFAULT | Supports transactions, row-level locking, and foreign keys  | YES | YES | YES |

If it is not default, modify /etc/mysql/my.cnf

$ vim /etc/mysql/my.cnf

and under [mysqld], add

default-storage-engine = innodb

After changing the default MySQL engine, the MySQL service must be restarted to take effect.

Create database

CREATE DATABASE okmdb DEFAULT CHARACTER SET utf8 DEFAULT COLLATE utf8_bin;
CREATE USER openkm@localhost IDENTIFIED BY 'password';
GRANT ALL ON okmdb.* TO openkm@localhost WITH GRANT OPTION;

Installing OpenKM and Tomcat bundle

$ cd /home/openkm

$ unzip openkm-6.3.2-community-tomcat-bundle.zip

The tomcat version numeration name can be altered to upgrade to a major version.

Configuring Tomcat as a service

For security reasons, you shouldn't run Tomcat as root. It is better to use the user named openkm.

Create a file with the script:

$ sudo vim /etc/init.d/Tomcat

#!/bin/sh
 
### BEGIN INIT INFO
# Provides:          tomcat
# Required-Start:    $remote_fs $syslog
# Required-Stop:     $remote_fs $syslog
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Start and stop Apache Tomcat
# Description:       Enable Apache Tomcat service provided by daemon.
### END INIT INFO
 
ECHO=/bin/echo
TEST=/usr/bin/test
TOMCAT_USER=openkm
TOMCAT_HOME=/home/openkm/tomcat
TOMCAT_START_SCRIPT=$TOMCAT_HOME/bin/startup.sh
TOMCAT_STOP_SCRIPT=$TOMCAT_HOME/bin/shutdown.sh
 
$TEST -x $TOMCAT_START_SCRIPT || exit 0
$TEST -x $TOMCAT_STOP_SCRIPT || exit 0
 
start() {
    $ECHO -n "Starting Tomcat"
    su - $TOMCAT_USER -c "$TOMCAT_START_SCRIPT &"
    $ECHO "."
}
 
stop() {
    $ECHO -n "Stopping Tomcat"
    su - $TOMCAT_USER -c "$TOMCAT_STOP_SCRIPT 60 -force &"
    while [ "$(ps -fu $TOMCAT_USER | grep java | grep tomcat | wc -l)" -gt "0" ]; do
        sleep 5; $ECHO -n "."
    done
    $ECHO "."
}
 
case "$1" in
    start)
        start
        ;;
    stop)
        stop
        ;;
    restart)
        stop
        sleep 30
        start
        ;;
    *)
        $ECHO "Usage: tomcat {start|stop|restart}"
        exit 1
esac
exit 0

The script must be changed if you use another user to start the service or your $TOMCAT_HOME is not /home/openkm/tomcat

Make it executable:

$ sudo chmod 755 /etc/init.d/Tomcat

Update the run-levels:

$ sudo update-rc.d tomcat defaults

Check the service

Start the service:

$ sudo service tomcat start

Stop the service:

$ sudo service tomcat stop

Installing third-party software

SoftwareRequiredCommand

LibreOffice or OpenOffice

Yes

$ apt-get install libreoffice

Tesseract

No

$ apt-get install tesseract-ocr tesseract-ocr-eng

Depending on your locale, you would like to install another language file.

ClamAV

No

$ apt-get install clamav

Imagemagick

Yes

$ apt-get install imagemagick

Ghostscript

Yes

$ apt-get install Ghostscript

Start application

Check OpenKM.cfg parameters

$ vim /home/openkm/tomcat/OpenKM.cfg

Your configuration should be something like this:

# OpenKM Hibernate configuration values
hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
hibernate.hbm2ddl=create

Ensure hibernate.dialect=org.hibernate.dialect.MySQL5Dialect has enabled if your database is MySQL.

First-time application start:

$ service tomcat start

To see the startup process can execute the command:

$ tail -f /home/openkm/tomcat/log/catalina.log

When the application is started, you'll see in the log file the lines:

2015-07-04 18:28:10,680 [main] INFO  org.apache.coyote.http11.Http11Protocol - Starting ProtocolHandler ["http-bio-0.0.0.0-8080"]
2015-07-04 18:28:10,688 [main] INFO  org.apache.coyote.ajp.AjpProtocol - Starting ProtocolHandler ["ajp-bio-127.0.0.1-8009"]
2015-07-04 18:28:10,692 [main] INFO  org.apache.catalina.startup.Catalina - Server startup in 41456 ms

The application will be accessible at http://YOUR_IP:8080/OpenKM by user:okmAdmin with password: admin. ( Do not forget to change it !). For more information about Manage users and roles.

Configure default extensions:

Go to Administration > Database query  and execute:

INSERT INTO OKM_EXTENSION (EXT_UUID, EXT_NAME) VALUES ('808e7a42-2e73-470c-ba23-e4c9d5c3a0f4', 'Live Edit');
INSERT INTO OKM_EXTENSION (EXT_UUID, EXT_NAME) VALUES ('58392af6-2131-413b-b188-1851aa7b651c', 'HTML Editor 4');
INSERT INTO OKM_PROFILE_MSC_EXTENSION (PEX_ID, PEX_EXTENSION) VALUES (1, '808e7a42-2e73-470c-ba23-e4c9d5c3a0f4');
INSERT INTO OKM_PROFILE_MSC_EXTENSION (PEX_ID, PEX_EXTENSION) VALUES (1, '58392af6-2131-413b-b188-1851aa7b651c');

Other standard additional configurations setup 

OpenKM comes with a lot of configuration parameters. Please make sure to review: Recommended configuration parameters.

Restart installation from scratch

The OpenKM first startup does some background configurations like filesystem folder creation and changes in the OpenKM.cfg that only happen during the first startup.

Sometimes some mistake in OpenKM configuration, for example, a wrong database connection or similar issues during the first startup, raises an application failure. To restart the installation from scratch, we suggest following the next steps.

  1. Ensure OpenKM is stopped.
  2. Edit the OpenKM.cfg and set the parameter to hibernate.hbm2ddl=create
  3. In case issue with the database connection, we suggest checking the link from the OpenKM server. Remember, some databases require enabling the user to gain connection from a server ( specific IP, range of IP, any server ).
  4. Delete the folder named "repository."
  5. Start OpenKM.