Install and upgrade Jenkins on Ubuntu 18.04 LTS

Carvia Tech | July 29, 2019 | 1 min read | 1,308 views


In this short tutorial we will apply minor update to existing Jenkins installation on Ubuntu machine.

Common location of jenkins war file on ubuntu server is:

/usr/share/jenkins

Update the installation

Stop the jenkins server
$ sudo service jenkins stop
Move existing jenkins war file
$ sudo mv jenkins.war jenkins.war.old
Download latest jenkins war file
$ cd /usr/share/jenkins
$ sudo wget https://updates.jenkins-ci.org/latest/jenkins.war
Start the Jenkins server
$ sudo service jenkins start

Troubleshooting steps

If we are running jenkins using root permissions, (which we should not be doing) we need to change the jenkins.war permissions.

$ sudo chown root:root jenkins.war

We can optionally restart the jenkins server using below command:

$ sudo /etc/init.d/jenkins restart

If you are not able to find jenkins war file in standard path, you can goto Manage Jenkins → System Information, it will display the path to the .war file.

On ubuntu, you can also try the below two commands to update everything:

$ sudo apt-get update
$ sudo apt-get upgrade
$ sudo apt-get update
$ sudo apt-get install jenkins

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