Tutorials/Tips, Ubuntu

Upgrade Ubuntu 12.04 server to 14.04

‘Tis the season for upgrading.

First was upgrading OSSEC from 2.7 to 2.8, see Upgrading OSSEC 2.7 to 2.8 and the bro-ids rule issue. Now’s the time to upgrade the server that OSSEC was protecting. Before the upgrade, the server was running Ubuntu 12.04 LTS. It was upgraded to Ubuntu 14.04 LTS less than an hour ago.

Here’s how I did it.

By the way, the server is a DigitalOcean basic droplet, which cost $5.00 USD per month. For that, you get a Cloud server with 512 MB or RAM and 20 GB storage. For now, that’s more than enough to power an email server for all my domains and a small website. You may sign up for a DigitalOcean account.

Back to the upgrade. The official recommendation for upgrading Ubuntu distributions, especially production servers, is to wait until a point version has been released. In this case, that means waiting until Ubuntu 14.04.1 was released. It was released on July 22 (2014).

So after making sure that the current system was fully dated, which meant running sudo apt-get update && apt-get upgrade, I made a snapshot of the droplet (in case the upgrade failed). Once that was done, I ran sudo do-release-upgrade. That script is part of update-manager-core, which should be installed by default.

Note: I’ve come across tutorials where the author advocated running sudo do-release-upgrade -d. Don’t try that on a production server. The -d switch is used to upgrade to a development version of Ubuntu. I don’t think you want to do that on your production server. If you have any doubts about upgrading, you can run the command with the -s switch, like so: sudo do-release-upgrade -s. That performs a dry-run upgrade. See the Release Notes of Ubuntu 14.04.1 for more on this subject.

Here are screenshots from the upgrade operation.

The upgraded can be done by ssh-ing to the server or from the console, which you can access from your DigitalOcean dashboard. This upgrade was from the console.
Upgrade Ubuntu 12.04 LTS

Since I didn’t want to babysit the upgrade, I selected yes when this window came up.
Upgrade Ubuntu 12.04 to 14.04

There were several of this type of window that came up. Stuck with the default on every single one.
Upgrade Ubuntu 12.04

Type y to continue.
Upgrading Ubuntu 12.04 LTS

And y again to restart the system.
Upgrading Ubuntu 12.04 to 14.04.1

Related Posts

How to install Linux Mint Debian Edition on an encrypted LVM file system Linux Mint Debian Edition (LMDE) is the edition of Linux Mint that is based on Debian Testing. Like the edition of Linux Mint based on Ubuntu, the ins...
How to disabling Geo-Tagging on your phone The storage of location based data, in the form of Latitude and Longitude inside of images is called Geotagging; essentially tagging your photograph w...
How to install AppMenu-QML on Fedora 16 KDE There are several menu styles available for users of the K Desktop Environment. Virtually all, should be familiar with the Classic menu, the Kickoff m...
Is your browser safe against tracking? Use Panopticlick to find out Worried about privacy, about the websites you visit tracking you, whether you accept their cookies or not? Panopticlick to the rescue! Panopticl...
Going Paranoid on Fedora 13 A Paranoid, or 5-star, security rating is the highest physical security rating that you can achieve on your computer. It entails enabling a set of OS-...
What is an init system? Editor: This is a short and to-the-point article to read if you want to get a proper understanding of how your Linux system boots. Back in Fedora 1...

We Recommend These Vendors and Free Offers

Launch an SSD VPS in Europe, USA, Asia & Australia on Vultr's KVM-based Cloud platform starting at $5:00/month (15 GB SSD, 768 MB of RAM).

Deploy an SSD Cloud server in 55 seconds on DigitalOcean. Built for developers and starting at $5:00/month (20 GB SSD, 512 MB of RAM).

Want to become an expert ethical hacker and penetration tester? Request your free video training course of Online Penetration Testing and Ethical Hacking

Whether you're new to Linux or are a Linux guru, you can learn a lot more about the Linux kernel by requesting your free ebook of Linux Kernel In A Nutshell.


Leave a Comment

Your email address will not be published. Required fields are marked *

*