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Ubuntu Linux support

We support the following versions of Ubuntu Linux on PC hardware:
  • Ubuntu 16.04 LTS (Xenial Xerus) 64-bit (AFS systype amd64_u1604)
  • Ubuntu 14.04 LTS (Trusty Tahr) 64-bit (AFS systype amd64_u1404)
Support for the following versions of Ubuntu Linux has ended or is currently being phased out:
Phasing out:
  • Ubuntu 12.04 LTS (Precise Pangolin) 64-bit (AFS systype amd64_u1204)
  • Ubuntu 10.04 LTS (Lucid Lynx) 64-bit (AFS systype amd64_u1004)
Please see our Linux upgrade guidelines before requesting an upgrade from a previous version of Ubuntu Linux.

Hardware support

Some types of PC hardware do not work well under Ubuntu Linux. If you wish to purchase a new PC, please see our recommended PC page for a list of supported PC configurations. If you do not see configuration there that meets your needs, please consult with us before purchasing a Linux PC that you intend to have Facilities support.

Contact us if you have any hardware problems on a Facilities-supported host.

Software environment

Supported Ubuntu Linux hosts run the SCS Dragon computing environment. Most SCS-specific software is in /usr/cs. The following resources describe some features of this environment:
SCS Dragon for Unix/Linux quick reference
Gives a brief overview of some common questions when using hosts running the SCS Dragon computing environment.
SCS Dragon for Unix/Linux local system administration guide
Detailed information about some of the special procedures that one should follow in order to perform various system administration tasks on hosts running SCS Dragon.

Software support lifetime

SCS Facilities follows the vendor support cycle for Dragon systems. When the vendor ends support for a particular release, Facilities ends support as well.

For Dragon systems based on Ubuntu LTS releases, the following support lifetime can be expected:

  • Ubuntu 12.04 (Precise Pangolin) and beyond - Canonical has extended desktop support for LTS releases to 5 years from the previous limit of 3 years.

Google Chrome support for Ubuntu 12.04

In order to use Google Chrome, you must be running 64-bit Ubuntu 14.04 or later. Additional information about Google Chrome, including system requirements, can be found on the Chrome Help website.

As of March 2016, Google Chrome is no longer supported for 64-bit Ubuntu 12.04 or for 32-bit versions of Linux. Google announced this change in approach in November 2015.

If your SCS computer is running Ubuntu 12.04, you may wish to consider using either Firefox or Chromium. Chromium is the open-source counterpart to Google Chrome and will continue to be supported. More information is available from the Chromium project website.

Non-managed systems

For Ubuntu machines which cannot run the Dragon managed environment (for example, older 32-bit machines, or grant-funded projects with system access restrictions that would be violated by having SCS Facilities managing your hosts) or for systems for which you wish to administer yourself, Facilities provides a set of Service Configuration Add-Ons for the Ubuntu platform. Note that this is an unmanaged environment and the system owner is wholly responsible for administration of machines running the SCA packages, though comprehensive Software Support is available for purchase.

Troubleshooting and FAQs

If you have a software or hardware problem with a supported host, you should contact SCS Facilities for assistance. The local Linux FAQ has answers to some common Linux-specific questions.

Additional information

The following off-site links will open in a new browser window:
The website of the Ubuntu Linux distribution.
Ubuntu Package Search
Search for Ubuntu Packages.
Ubuntu in Launchpad
File, follow, or search for Ubuntu bugs; track Ubuntu development; ask questions of Ubuntu developers and other Ubuntu users.
A good source of general information about Linux, with pointers to other resources.
Linux Documentation Project
An archive of FAQ's and HOWTO's.
An index of Linux applications and code. Freshmeat is searchable, and gives links to homepages, package download sites, and mirrors, as well as having a comment section for each item.
Linux Weekly News
A news page that compiles some of the important news pertaining to the linux community. The Distributions section has a list of most of the many different linux distributions.
Linux on Laptops
A very comprehensive list of web pages containing information on installing linux on a particular brand of laptop. Also has many good links for any laptop owner who runs linux.
Keep up to date with the latest security issues.
The GNU Project
Homepage for "GNU/Linux"; also has links/info for the Free Software Foundation.
GNU Manuals
Online manuals to some of the common GNU utilities.
Western Pennsylvania Linux Users Group
Sometimes meets on the CMU campus.