Friday May 20, 2016

FRIDAY SPOTLIGHT: Oracle Linux 6.8 is now available

On Monday evening, we released Oracle Linux 6.8 to the Unbreakable Linux Network.  This release is the first ISO to incorporate Unbreakable Enterprise Kernel Release 4 (Quarterly Update 1) and includes several improvements and features.  You can download this update from yum.oracle.com or from the Oracle Software Delivery Cloud.  For more information regarding the release or for details on how to update your system, please review the release notes located here.

 This is a great time to remind users of the channel features available with Unbreakable Linux Network (ULN).  Here are a few tips:

  1. If you are subscribed to the _LATEST channel, you will receive all the latest updates, including update releases like Oracle Linux 6.8.  This ensures your system is always up to date with not only the latest update release but also critical bug and security errata.
  2. For more control over patches and updates, you can also subscribe to the _BASE and _PATCH channel for your respective release.  These channel stays locked to a given minor release.  For example, if you have standardized on Oracle Linux 6.7 across your data center and only want updates released during the 6.7 maintenance window - subscribe to these channels.  Once you are ready to move to Oracle Linux 6.8, simply subscribe to the 6.8 _BASE & _PATCH channels.  Keep in mind, once a later update release is available, all errata updates will move to the latest channel.  It is always recommended users stay up to date on errata to ensure systems remain secure.  For more information about ULN please refer to the ULN User Guide.
  3. Finally, remember if you are an Oracle Linux Premier Support customer you also have access to zero-downtime patching with Ksplice.  For more information, please review the Ksplice User guide.

Please send us your comments and feedback.

Friday Apr 29, 2016

FRIDAY SPOTLIGHT: Unbreakable Enterprise Kernel Release 4 Quarterly Update 1 is now available

We are pleased to announce the availability of the Unbreakable Enterprise Kernel Release 4 Quarterly Update 1 (UEKR4U1) for Oracle Linux 6 and Oracle Linux 7. This is the first quarterly update release for UEK Release 4 (Version 4.1.12-37.2.1) and includes driver updates and a consolidation of fixes for bugs and security issues.

Highlights include:

  • LXC has been updated from 1.07 to 1.1.5
  • btrfs-progs has been updated to 4.2.2-3
  • Several DTrace improvements have been included in this release, including multiple probe firings of a Statically Defined Tracing (SDT) probe
  • Xen improvements, including updates to pciback driver
  • Device driver updates from partners, such as:
    • Broadcom
    • Intel®
    • Microsoft
    • PMC-Sierra
    • VMware

For more information about this release, please refer to the release notes

The source code is available on our public git repository

Thursday Mar 24, 2016

Training Thursdays: Learn to Use Advanced Features of Oracle Linux

Oracle Linux is designed for enterprise class applications. To get the most from Oracle Linux using advanced features take the Oracle Linux 7: Advanced Administration course and learn to:

  • Configure DNS, DHCP, HTTP, Samba, and other network services
  • Configure LDAP, PAM, and other authentication services
  • Automate installation using Kickstart
  • Recover from boot errors
  • Use advanced package management features
  • Configure network bonding, VLANs, and VPNs
  • Implement Linux Containers, Docker, KVM and other virtualization services
  • Allocate system resources to specific Linux processes
  • Use DTrace to identify performance bottlenecks
  • Configure iSCSI, device multipathing, and OCFS2

You can take the Oracle Linux 7: Advanced Administration course in the following formats:

  • Live-Virtual Event: Attend a live event from your own desk, no travel required. Choose from a selection of events on the schedule to suit different timezones including 28 March, 25 April and 11 and 18 July 2016.
  • In-Class Event: Travel to an education center to attend this course. Below is a selection of the in-class events on the schedule:

 Location  Date  Delivery Language
 Melbourne, Australia
 15 August 2016  English
 Sydney, Australia
 12 September 2016  English
 Vilvoorde, Belgium
 9 May 2016  English
 Brasilia, Brazil
 14 November 2016  Brazilian Portuguese
 Sao Paolo, Brazil
 23 May 2016  Brazilian Portuguese
 Bogota, Colombia
 18 April 2016  Spanish
 London, England
 18 April 2016  English
 Hamburg, Germany
 18 April 2016  German
 Munich, Germany
 9 May 2016  German
 Jakarta, Indonesia
 31 October 2016  English
 Kuala Lumpur, Malaysia
 18 July 2016  English
 Makati City, Philippines
 25 April 2016  English
 Auckland, New Zealand
 14 November 2016  English
 Wellington, New Zealand
 16 May 2016  English
 Singapore
 25 April 2016  English
 Bangkok, Thailand
 27 June 2016  English
 Abu Dhabi, United Arab Emirates
 17 July 2016  English
 Belmont, CA, United States  9 May 2016  English
 Miami, FL, United States  27 June 2016  English
 Reston, VA, United States  1 August 2016  English
 Roseville, MN, United States  29 August 2016  English
 Durham, NC, United States  3 October 2016  English

Those using Oracle Linux 5 or 6 should take the Oracle Linux 5 & 6 Advanced Administration course. You can take this course in the following formats:
  • Training-on-Demand: Start training within 24 hours of registering, following lecture material at your own pace through streaming video and booking time to get hands-on experience when suits your schedule.
  • Live-Virtual Event: Attend a live event from your own desk, no travel required. Choose from a selection of events on the schedule to suit different timezones including 11 April, 23 May, and 13 and 20 June 2016.
  • In-Class Event: Travel to an education center to attend this course. Below is a selection of the in-class events on the schedule:

 Location  Date  Delivery Language
Sao Paolo, Brazil
18 April 2016 Brazilian Portuguese
Jakarta, Indonesia
16 May 2016 English
Milan, Italy
6 June 2016 Italian
Turin, Italy
12 December 2016 Italian
Amman, Jordan
17 April 2016 English
Seoul, Korea
26 September 2016 Korean
Kuala Lumpur, Malaysia
5 September 2016 English
Johannesburg, South Africa
3 October 2016 English
Bangkok, Thailand
18 April 2016 English
Roseville, MN, United States 18 April 2016 English
Belmont, CA, United States 15 May 2016 English
Reston, VA, United States 13 June 2016 English
Cambridge, MA, United States 18 July 2016 English
Irving, TX, United States 22 August 2016 English

The Oracle Linux 5 & 6 Advanced Administration course is one step in your preparation to take the Oracle Linux 5 & 6 System Administrator OCP certification exam.

To register for an event or to learn more about the Oracle Linux curriculum, go to http://oracle.com/education/linux.

Friday Jan 08, 2016

Announcing the general availability of Unbreakable Enterprise Kernel Release 4

The Oracle Linux team is pleased to announce the general availability of the Unbreakable Enterprise Kernel (UEK) Release 4 for Oracle Linux 6 and Oracle Linux 7.  This release, based on the 4.1 mainline kernel, delivers many important new features and enhancements engineered for modern cloud infrastructure.  

  • Significant performance improvements through enhancements to features like automatic NUMA balancing and CPU schedulers, and the introduction of new features like zswap, zram, the LZ4 compression algorithm, network batch transmissions and low-latency network polling.
  • More options for boosting the security of systems and the applications they host. UEK Release 4 now includes kernel address space randomization, a new random number system call and updates in key areas like SELinux, nftables, SHA256 and SHA512.
  • Real-time kernel and userspace patching with Ksplice for Oracle Linux to simplify managing cloud infrastructure and improve security.
  • Support for key cloud technologies. Xen host and guest domain feature and performance enhancements, Open vSwitch and VXLAN improvements for networking, cgroups and namespace enhancements for linux containers and Docker.
  • Enhancements to Oracle Linux DTrace for dynamic, real-time system tracing on production systems
  • The production release and support of Ceph Storage for Oracle Linux Release 1.0, based on the upstream Firefly release
  • New real-time kernel features including timerless (tickless) multitasking and the addition of the deadline scheduling class
  • Enhanced infiniband features including improved protocols, drivers and firmware.
  • A number of updates to key areas such as XFS, Btrfs, Ext4, NFS, FUSE and the Overlay file systems.
  • A number of driver updates supporting the latest hardware.

This has been a major engineering effort that can benefit every Oracle Linux customer. For more information on this release, please review the release notes here.

Oracle Linux is available to download from the Oracle Software Delivery Cloud and the Oracle Yum repos.

Tuesday Nov 10, 2015

Learn About Using DTrace with Oracle Linux

DTrace is a performance analysis and troubleshooting tool. DTrace allows dynamic tracing by defining probe points dynamically. Probes and actions at probe points are defined by commands and scripts written in the D language.

To learn about using DTrace with Oracle Linux, view this video and learn to: 

  • Subscribe to the DTrace channel on ULN
  • Install the DTrace software packages
  • Load the DTrace kernel modules
  • List DTrace probes
  • Use the DTrace command line interface
  • Run DTrace scripts
  • Access the DTrace guide and DTrace tutorial

You can learn more about DTrace and other advanced linux tasks by taking the training course relevant to the version of your operating system:

DTrace is one of the topics tested in the Oracle Certified Professional: Oracle Linux 6 Advanced System Administration exam.

For more information about the Oracle Linux curriculum, go to http://oracle.com/education/linux.

Thursday Jul 30, 2015

Announcing the general availability of Unbreakable Enterprise Kernel Release 3 Quarterly Update 6

We are pleased to announce the availability of Unbreakable Enterprise Kernel Release 3 Quarterly Update 6 (UEKR3U6) for Oracle Linux 6 and Oracle Linux 7. This is the sixth quarterly update release for UEK Release 3 (Version 3.8.13-98) and includes driver updates and a consolidation of fixes for bugs and security issues.

Some notable highlights include:

  • Driver for Intel Sandy Bridge memory controllers (sb_edac) version 1.0.0 included
  • New hardware support for SGI UltraViolet 3 platform
  • LXC Improvements in kernel and userspace including a new --privilege option when creating containers
  • Xen improvements such as preventing soft lockups due to long-running hypercalls and preventing memory leaks in the Xen block driver
  • DTrace improvements for using User-Level Statically Defined (USDT) probes in 32-bit applications on 64-bit hosts
  • Support for more than eight PTP hardware clocks (PHC)
  • Device driver updates (e.g. storage devices, network cards) from key partners, such as:
    • Adaptec
    • Broadcom
    • Cisco
    • Emulex
    • Intel
    • QLogic
    • VMware

For more information about this release, please refer to the release notes

The source code is available on our public git repository

Wednesday Jul 29, 2015

Announcing the general availability of Oracle Linux 6.7

We're happy to announce the general availability of Oracle Linux 6 Update 7, the seventh update release for Oracle Linux 6. You can find the individual RPM packages on the Unbreakable Linux Network (ULN) and our public yum repository and ISO installation images are available for download from the Oracle Software Delivery Cloud.

Oracle Linux 6 Update 7 ships with the following kernel packages:

  • Unbreakable Enterprise Kernel (UEK) Release 3 (kernel-uek-3.8.13-68.3.4.el6uek) for x86-64
  • Unbreakable Enterprise Kernel (UEK) Release 2 (kernel-uek-2.6.39-400.250.7.el6uek) for i386 
  • Red Hat Compatible Kernel (kernel-2.6.32-573.el6) for i386 and x86-64
By default, both the Unbreakable Enterprise Kernel and the Red Hat Compatible Kernel for the specific architecture (i386 or x86-64) are installed and the system boots the Unbreakable Enterprise Kernel.

Notable features in this release include:

  • Open Security Content Automation Protocol (OpenSCAP), including the oscap utility for enhanced security auditing and compliance
  • Load Balancing and High Availability with Keepalived and HAProxy, supported under Oracle Linux Premier Support subscriptions
  • Enhanced SSSD support for Active Directory, including:
    • Dynamic updates to DNS
    • Group and user lookups of NetBIOS names
    • site discovery of domain controllers
    • User and group resolution, including user authentication for trusted domains within a single AD forest
  • Updates to the hyper-daemons package , which contains hypervfcopydhypervkvpd, and hypervvssd

For more details on these and other new features and changes in Oracle Linux 6 Update 7, 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.  You decide which support coverage is the best for each of your systems individually, while keeping all of your systems up-to-date and secure.  For customers with Oracle Linux Premier Support, you also receive access to zero-downtime kernel updates using Oracle Ksplice and support for Oracle OpenStack for Oracle Linux.

 For more information about Oracle Linux, please visit www.oracle.com/linux

Thursday Mar 19, 2015

Unbreakable Enterprise Kernel Release 3 Quarterly Update 5 Now Available

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:
    • Broadcom
    • Cisco
    • Emulex
    • HP
    • Intel
    • Mellanox
    • Microsoft

For more details, please review the release notes.

The source code is available on our public git repository

Thursday Mar 12, 2015

Announcing General Availability of Oracle Linux 7.1

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 .

Monday Jan 05, 2015

Unbreakable Enterprise Kernel Release 3 Quarterly Update 4 Now Available

We are pleased to announce the availability of Unbreakable Enterprise Kernel Release 3 Quarterly Update 4 (UEKR3U4) for Oracle Linux 6 and Oracle Linux 7. This is the fourth quarterly update release for UEK Release 3 (Version 3.8.13-55) and includes driver updates and a consolidation of fixes for bugs and security issues.

Some notable highlights include:

  • Users are now able to specify which modules DTrace shold load automatically during startup by specifying the module in /etc/dtrace-modules.
  • PMC-Sierra PM8001 SAS/SATA controller driver (pm8001) , which supports the new Adaptec Series 7H family of 8-port and 16-port PCIe gen3 SAS/SATA host bus adapters, has been added.
  • Intel XL710 X710 Virtual Function network driver (i40evf) has been added.
  • The P-state driver (intel_pstate) for the Intel Sandy Bridge processor has been added.
  • Various network performance improvement patches to support Oracle Linux virtual machines running on Microsoft Hyper-V have been included.
  • NFS over Remote Data Memory Access (RDMA) Client is available as a technology preview.
  • Device driver updates (e.g. storage devices, network cards) from key partners, such as:
    • Broadcom
    • Emulex
    • HP
    • Intel
    • LSI
    • Mellanox
    • PMCS
    • QLogic
    • Tigon

For more details, please review the release notes.

The source code is available on our public git repository

Thursday Oct 30, 2014

Oracle Linux - The Engine Behind the Modern Data Center

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

Register here

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.
Register here

Tuesday Oct 21, 2014

Announcing General Availability of Oracle Linux 6.6

We're happy to announce the general availability of Oracle Linux 6 Update 6, the sixth update release for Oracle Linux 6. You can find the individual RPM packages in our public yum repository now; ISO installation images will be freely available for download from the Oracle Software Delivery Cloud soon.

Oracle Linux 6 Update 6 ships with the following kernel packages:

  • Unbreakable Enterprise Kernel (UEK) Release 3 (kernel-uek-3.8.13-44.1.1.el6uek) for x86-64
  • Unbreakable Enterprise Kernel (UEK) Release 2 (kernel-uek-2.6.39-400.215.10.el6uek) for i386 
  • Red Hat Compatible Kernel (kernel-2.6.32-504.el6) for i386 and x86-64
By default, both the Unbreakable Enterprise Kernel and the Red Hat Compatible Kernel for the specific architecture (i386 or x86-64) are installed and the system boots the Unbreakable Enterprise Kernel.

Notable features in this release include:

  • Fully integrated DTrace support with UEK Release 3.
  • Full Linux Containers (LXC) support in UEK Release 3.
  • Btrfs is fully supported when using the the UEK (Release 2 or 3).
  • Enhanced SSSD support for Active Directory
  • A new daemon for Hyper-V, which includes the hypervfcopydhypervkvpd, and hypervvssd packages, which provides the Hyper-V file-copy, key-value pair (KVP), and volume shadow copy service (VSS) daemons for an Oracle Linux guest that is running under Hyper-V on a Microsoft Windows Host.

For more details on these and other new features and changes in Oracle Linux 6 Update 6, 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.  You decide which support coverage is the best for each of your systems individually, while keeping all of your systems up-to-date and secure.  For customers with Oracle Linux Premier Support, you also receive access to zero-downtime kernel updates using Oracle Ksplice and support for Oracle OpenStack for Oracle Linux.

 For more information about Oracle Linux, please visit www.oracle.com/linux

Wednesday Jul 23, 2014

Oracle Linux 7 is now available

Oracle is pleased to announce the general availability of Oracle Linux 7. Oracle Linux 7 offers the latest innovations and improvements to support customers and partners in developing and deploying business critical applications across the data center and into the cloud. Features include:

  • Btrfs Oracle Linux 7
  • XFS 
  • Linux Containers (LXC)
  • DTrace
  • Ksplice for zero-downtime kernel security updates and bug fixes
  • Xen enhancements
  • Unbreakable Enterprise Kernel (UEK) Release 3
  • systemd, a new service and system manager
  • Grub2 as the default boot loader with support for additional firmware types, such as UEFI
  • Support for in-place upgrades from Oracle Linux 6.5 to Oracle Linux 7

Listen to Wim Coekaerts, Senior Vice President of Linux and Virtualization Engineering at Oracle, discuss the benefits of Oracle Linux 7.

Oracle Linux 7 is available today and can be downloaded from Oracle's Software Delivery Cloud.  Please review the Release Notes and Oracle Linux documentation for details about the latest features and known issues.

For additional information, please read our press release and visit www.oracle.com/linux

Friday Jul 11, 2014

Friday Spotlight: How to Get Started Using DTrace on Oracle Linux

Happy Friday!

I'm reaching back into the archives this week because I stumbled upon on article that I think is really helpful. Oracle DTrace gives you fantastic diagnostic tracing capabilities, and it's available to you on Oracle Linux right now. Read this great article from OTN Garage on how to get started with it.

How to Get Started Using DTrace on Oracle Linux

We'll see you next week!

-Chris 

Friday Jun 20, 2014

Friday Spotlight: A Wealth of Information on Oracle Linux

Happy Friday!

Our spotlight this week is on the large library of in-depth information about Oracle Linux on the Oracle documentation site. There is, of course, an administrator's guide, as you would expect. But there are also extremely comprehensive guides on Ksplice, DTrace, Spacewalk, security, and more. Check out the whole set for some Friday afternoon reading.

See you next week! 

-Chris

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