Wednesday Aug 10, 2011

Join OTN Or ...

...The Lemur Gets It!


Turns out Oracle wants more sysadmins (Linux, Solaris, systems, storage, or network) to become official, bonafide, full-blown OTN members. I explained that sysadmins aren't really the "joining" type, but I lost. Oracle wants more sysadmins to join OTN. Period.

So I've been wondering how I could convince the more reluctant among you to become official, bonafide, full-blown OTN members. After all you, your bookie, and your bookie's mother-in-law can read our technical articles, view our OTN videos (may take time to load), and visit just about every part of the OTN Systems website without signing up for anything.

But there is a bunch of very cool stuff you can't do unless you're a member. This month I'll tell you about one.


Download Software For Free

You can't download our software for free unless you're an OTN member.

I know Oracle's license terms are not the same as Sun's were, but you still get to download and horse around with world-class software for free. If you're anywhere within a decade of your mid-life crisis, you'll clearly remember when you had to actually pay a lot of money for good software. All we ask is that you be honest about when you deploy our software. That's only fair.

For all the details, read the OTN developer license.

You can read about other benefits of membership here.

So, if you really want that lemur to have a future, sign up here, check the "Oracle Technology Network" box under "My Community Memberships," and identify yourself as a sysadmin.

And while you're at it, sign up for our newsletter. It'll highlight the best content we've published over the previous month, in case you weren't paying attention.

- Rick
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Wednesday Jun 15, 2011

Pimp my Ride - Installing Additional Packages on Oracle Linux

Lee Cannon: Wings Wheels 2010
"Wings Wheels 2010" by Lee Cannon (CC BY-SA 2.0).

Oracle Linux already ships with an impressive amount of software packages which can be downloaded from our public Yum server.

For example, adding the external package repository for Oracle Linux 6.1 is a trivial task:

  1. Download and copy the appropriate yum configuration file in place, by running the following command as root:
    # wget -O /etc/yum.repos.d/public-yum-ol6.repo \
      http://public-yum.oracle.com/public-yum-ol6.repo
  2. Now edit the file using your favorite text editor and enable the appropriate repository ([ol6_u1_base] in our case) by changing the value of the enabled variable from 0 to 1.
  3. Now you can run yum list all to get a full list of all available packages. You can install them by running yum install <packagename>
However, being a distribution with a focus on the enterprise and data center, the package selection is limited to this scope. If you are looking for additional packages, you would have to either compile them from source or download pre-built binaries from an external package repository.

Enter EPEL, the "Extra Packages for Enterprise Linux" repository. According to their extensive FAQ, EPEL "is a volunteer-based community effort from the Fedora project to create a repository of high-quality add-on packages that complement the Fedora-based Red Hat Enterprise Linux (RHEL) and its compatible spinoffs, such as CentOS and Scientific Linux.".

Oracle Linux is based on RHEL, too, and is 100% userland-compatible with it. Therefore any package available from EPEL will install and run just fine, giving you access to a large pool of additional software. However, please keep in mind that this software is not covered by any Oracle Linux Support agreement you may have!

You can add and enable the EPEL repository by performing the following steps (as the root user):

  1. Download and install the repository package which includes the appropriate repository information for your version of Oracle Linux:
    rpm -Uvh http://download.fedora.redhat.com/pub/epel/6/x86_64/epel-release-6-5.noarch.rpm
  2. The repository is automatically enabled, which you can verify by running yum repolist.
  3. To get a listing of all the additional packages you now have access to, run yum list available | grep epel | less.
  4. Now simply run yum install <packagename> to install any of the additional packages (over 4800 for Oracle Linux 6, last time I counted!).
Enjoy!

See more articles about Oracle Linux at the Oracle Linux Blog!

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Contributors:
Rick Ramsey
Kemer Thomson
and members of the OTN community

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