March 19, 2015

SUSE Linux Enterprise Server 12 (SLES 12) released

In November last year SUSE has announced the availability of their next major distribution release SUSE Linux Enterprise Server (SLES 12). It's an interesting change in strategy that SUSE chose to release it after the competing RHEL 7 distribution. In the past SUSE has always been first to the market.

Here is a the usual list of interesting information links:
SUSE has released the first maintenance web kernel for SLES12  (kernel-default-3.12.36-38.1.s390x.rpm)
It contains quite some fixes that you really want to have on your system.

March 18, 2015


In January 2015 IBM announced the new version of the mainframe called z13.  As of March 9th 2015 the successor of the zEC12 is officially available.

z13 mainframe glas model
z13 glas model - photo Michael Storzer

This machine has many new features that I will cover in separate blog posts. The full advantages from all of them will become available with more and more exploitation and adaptions during the next year.

From a Linux perspective the IBM tested platforms has been updated to include z13.
Please check the minimum and recommended kernel levels to ensure a smooth upgrade to z13!

Also Red Hat and SUSE updated their web sites to include the certifications:
From a z/VM perspective only z/VM 6.2 and z/VM 6.3 is being supported. But you need to install the required service before updating the hardware! Exploitation will only come with z/VM 6.3, so please plan for upgrades! And there is no z/VM 5.4 support any more. 

Warning: Unsupported Linux releases and/or missing z/VM service may lead to virtual server failures.

Other useful links:
For the z13s and z13 GA2 announcements, please refer to this link.  

(updated 02/17/2016)

March 7, 2015

Red Hat Enterprise Linux 7.1 released

On March 5th 2015 Red Hat released the first update of their RHEL 7 operating system. 

The kernel level for 7.1 is kernel-3.10.0-229.el7. The number of technology previews for System z has been greatly reduced, successful testing allows now support for those features.

Here is my usual summary of links to more information:
As this is a brand new release there are some hick ups aka bugs to be expected. If you are hitting one, please open a bug report with Red Hat and/or IBM.

(updated 3/18/2015)