Friday Mar 27, 2015
Thursday Mar 19, 2015
By Michele Casey on Mar 19, 2015
We are pleased to announce the availability of Unbreakable Enterprise Kernel Release 3 Quarterly Update 5 (UEKR3U5) for Oracle Linux 6 and Oracle Linux 7. This is the fifth quarterly update release for UEK Release 3 (Version 3.8.13-68) and includes driver updates and a consolidation of fixes for bugs and security issues.
Some notable highlights include:
- The turbostat tool is now included with the kernel and can be used to provide information on processor topology and statistics, such as temperature and frequency.
- Updates to the bonding driver to enable the ethtool command, which shows useful data like link aggregate speed and duplex mode.
- The SHA-512 hash algorithm is now available for signing kernel modules during installation.
- The ability to use swap files that reside on NFS shares is available as a technology preview.
- Xen EFI support has been added.
- Device driver updates (e.g. storage devices, network cards) from key partners, such as:
For more details, please review the release notes.
The source code is available on our public git repository.
Thursday Mar 12, 2015
By Michele Casey on Mar 12, 2015
We're happy to announce the general availability of Oracle Linux 7 Update 1, the first update release for Oracle Linux 7. All packages are currently available on ULN and public yum; ISO installation images will be freely available for download from the Oracle Software Delivery Cloud soon.
Oracle Linux 7 Update 1 ships with the following kernel packages:
- Unbreakable Enterprise Kernel (UEK) Release 3 (kernel-uek-3.8.13-55.1.6.el7uek) for x86-64
- Red Hat Compatible Kernel (kernel-3.10.0-229.el7) for x86-64
Oracle Linux 7 update 1 provides the latest features and innovations, such as:
- Linux container support using either Docker or LXC with UEK Release 3
- Comprehensive dynamic tracing with DTrace and UEK Release 3
- Production support for Btrfs with UEK Release 3
- The latest 3rd party hardware support
For more details on these and other new features and changes in Oracle Linux 7 Update 1, please consult the release notes in the Oracle Linux Product Documentation Library.
Oracle Linux can be downloaded, used and distributed free of charge and all updates and errata are freely available. For support, you decide which of your systems require a support subscription. This makes Oracle Linux an ideal choice for your development, testing and production systems.
For customers with Oracle Linux Premier Support, you also receive support for Oracle OpenStack for Oracle Linux and access to zero-downtime kernel updates with Oracle Ksplice, at no additional charge. Oracle Ksplice is fully supported and has been providing live kernel updates to production systems since 2009, delivering more than 1 million patches to mission critical systems without a single reboot. For more information, please visit ksplice.oracle.com.
For more information about Oracle Linux, please visit www.oracle.com/linux .
Tuesday Feb 10, 2015
Friday Feb 06, 2015
By Chris Kawalek-Oracle on Feb 06, 2015
If you missed it yesterday, we did a press release describing the posting of Oracle Linux images on the Docker Hub Registry. If you're already working with Docker or interested in getting started with it, Oracle Linux gives you an extremely solid foundation to build on.
For a bit more on Docker, we did a webcast in November called Building the Modern Cloud-Enabled Data Center, where Docker and other trending topics were discussed. Have a view of the replay.
Also, did you know that you can bookmark tag searches on Oracle blogs? For example, to find posts on our blog about Docker, you'd use this:
Click that link and bookmark it, and you'll always have the complete list of Oracle Linux Blog posts that mention Docker.
Have a great week and we'll see you next Friday!
Thursday Feb 05, 2015
By Chris Kawalek-Oracle on Feb 05, 2015
This is exciting news for Oracle Linux and for the Docker community. Please read the press release to get all the details.
Friday Dec 05, 2014
By Chris Kawalek-Oracle on Dec 05, 2014
Over the last couple of weeks, we've done two fantastic live webcasts giving you tips on how to better manage your Oracle Linux environments. We discussed using Docker, Linux Containers, OpenStack, Spacewalk, and more. If you're looking to get a primer on how these technologies can help you, have a listen to the following on demand versions at your convenience.
Have a great week, we'll see you next Friday!
Friday Nov 21, 2014
By Chris Kawalek-Oracle on Nov 21, 2014
Friday Nov 14, 2014
By Chris Kawalek-Oracle on Nov 14, 2014
- We released the official Docker images for Oracle Linux. No longer a tech preview, the Docker Engine and official Oracle Linux images are fully supported as part of Oracle Linux Basic and Premier support subscriptions.
- If you missed it last week, the Spacewalk client for Oracle Linux 7 was released. You can read more here.
- We had a great time at LISA14, with many of you getting to talk to our experts at the booth and attending Ken Crandall’s session on the modern, cloud-enabled data center. Here is a picture of a live Ksplice demo going on at the booth (yes, rebooting is obsolete!):
- We were also at the Linux Foundation’s Korea Linux Forum. Another great opportunity to answer your questions about Oracle Linux, our Oracle staff at the show told me there was a great response at the booth and our speaking session on Btrfs.
- The Oracle Linux November newsletter is out! It’s a great way to catch up on everything that happened this year at Oracle OpenWorld 2014, read about product releases over the last 8 weeks or so, and much more. You can read it online here, or subscribe so it arrives automatically in your inbox.
Thursday Oct 30, 2014
By Chris Kawalek-Oracle on Oct 30, 2014
With increasing budget constraints and resource limitations, it’s becoming more and more important to leverage technological advances to squeeze as much value as possible out of your data center deployments. Innovative tools such as Ksplice, DTrace, Linux Containers, Docker, Spacewalk, and more, can help you to deploy and manage your deployments quicker and easier, increasing overall ROI. Join this November webcast series to learn how these technologies with Oracle Linux can streamline deployment and management of your critical IT systems.
Building the Modern Cloud-Enabled Data Center with Oracle Linux 7
Date: Tuesday, November 18, 2014
Time: 9:00 am PST
Spacewalk and Ksplice: Keep Oracle Linux Systems Up to Date and Secure
Date: Tuesday, November 25, 2014
Time 3:00 pm PST
Please note the 3:00 pm PST start time on this one to accommodate our friends in JAPAC. Replays will be available afterward if these dates and times are inconvenient for you.
Monday Aug 25, 2014
By Avi Miller-Oracle on Aug 25, 2014
There's no need to upgrade to Oracle Linux 7 to start playing with Docker: we've built it for Oracle Linux 6 and the Unbreakable Enterprise Kernel Release 3 and released it into the addons channel on http://public-yum.oracle.com. This release of Docker uses the native libcontainers engine by default as well as supporting btrfs as the storage engine.
If you've already got Oracle Linux 7 installed, don't worry we have you covered: we've released Docker for Oracle Linux 7 as well.
To install Docker on Oracle Linux 6:
- Enable the ol6_addons channel in /etc/yum.repos.d/public-yum-ol6.repo
# yum install docker
To install Docker on Oracle Linux 7:
- Enable the ol7_addons channel in /etc/yum.repos.d/public-yum-ol7.repo
# yum install docker
Enable btrfs support
Docker uses device-mapper devices as the default storage engine. To switch to using btrfs as the storage engine, ensure that /var/lib/docker is mounted on a btrfs filesystem. Check Chapter 5 of the Oracle Linux Administrator's Solutions Guide for more details on how to create and mount btrfs filesystems.
To enable btrfs support for Docker on Oracle Linux:
- Ensure that /var/lib/docker is on a btrfs filesystem
- Edit /etc/sysconfig/docker and add "-s btrfs" to the other_args fields.
- Restart the Docker daemon:
# service docker restart
Enabling and starting Docker
To enable the Docker daemon on system boot and start Docker on OL6:
# chkconfig docker on
# service docker start
To enable the Docker daemon on system boot and start Docker on OL7:
# systemctl enable docker.service
# systemctl start docker.service
Checking Docker status
To check that Docker is up and running on OL6:
# service docker status
To check that Docker is up and running on OL7:
# systemctl status docker.service
You can also get more information from Docker itself:
# docker info
# docker version
Once you have Docker up and running, follow the upstream Docker documentation to get started.
Docker unmounts btrfs filesystems on shutdown
If you're running Docker using the btrfs storage engine and you stop the Docker service, it will unmount the btrfs filesystem during the shutdown process. You should ensure the filesystem is mounted properly prior to restarting the Docker service. On Oracle Linux 7, you can use a systemd.mount definition and modify the Docker systemd.service to depend on the btrfs mount defined in systemd.
SElinux support with btrfs on Oracle Linux 7
SElinux must be set to Permissive or Disabled in order to use the btrfs storage engine on Oracle Linux 7.
Get the latest updates on strategy, products, events, news, customers, partners and all things Oracle Linux! Connect with Oracle's Linux experts.
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