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Archive for the ‘CentOS’ Category

RALEIGH, N.C. – January 7, 2014 – Red Hat, Inc, (NYSE: RHT), the world’s leading provider of open source solutions, and the CentOS Project today announced they are joining forces to build a new CentOS, capable of driving forward development and adoption of next-generation open source technologies.

This collaboration strengthens Red Hat’s proven business model by extending the Red Hat open source development ecosystem. Red Hat anticipates that taking a role as a catalyst within the CentOS community will enable it to accelerate development of enterprise-grade subscription solutions for customers and partners, such as Red Hat Enterprise Linux, Red Hat Enterprise Linux OpenStack Platform, Red Hat Cloud Infrastructure, Red Hat Enterprise Virtualization, Red Hat JBoss Middleware, OpenShift by Red Hat, and Red Hat Storage.

Ten years ago, Red Hat formed the Fedora Project to deliver advanced, state-of-the-art features for Linux. Just as a traditional operating system relies on the hardware beneath it, so too do projects such as cloud, virtualization, and Software-Defined Networking (SDN) rely on the foundation of an operating system. Fast development pace and openness to change make Fedora an excellent place for operating system innovations and related projects. Today, by taking an active role in the CentOS Project, Red Hat is once again extending its leadership in open source innovation by helping to establish a platform well-suited to the needs of open source developers that integrate technologies in and around the operating system.

With today’s announcement, Red Hat extends its commitment to rapid open source technology and solution development to deliver:

  • Commercial development and deployment: Red Hat Enterprise Linux, the world’s leading enterprise Linux platform, offering an extensive ecosystem of partners, a comprehensive portfolio of certified hardware and software offerings, and Red Hat’s award winning support, consulting, and training services. Red Hat subscriptions deliver this value combined with access to the industry’s most extensive ecosystem of partners, customers, and Linux experts to support and accelerate success.
  • Community integration beyond the operating system: CentOS, a community-supported and produced Linux distribution that draws on Red Hat Enterprise Linux and other open source technologies to provide a platform that’s open to variation. CentOS provides a base for community adoption and integration of open source cloud, storage, network, and infrastructure technologies on a Red Hat-based platform.
  • Operating system innovation across the stack: Fedora, a community-supported and produced Linux distribution that makes it easy for users to consume and contribute to leading-edge open source technologies from the kernel to the cloud. As a cutting edge development platform where every level of the stack is open to revision and improvement, Fedora will continue to serve as the upstream project on which future Red Hat Enterprise Linux releases are based.

Since its initial release in 2004, the CentOS Project has grown to include a significant amount of focus on open source technology integration and a sizable user community. Red Hat and the CentOS Project recognize an opportunity to begin a new era by collaborating to expand the CentOS Project to address innovation, community contribution, and participation up the stack and beyond the operating system. By joining forces with the CentOS Project, Red Hat aims to accelerate community innovation, engagement, and momentum around open source cloud and infrastructure projects.

Red Hat will contribute its resources and expertise in building thriving open source communities to the new CentOS Project to help establish more open project governance and a roadmap, broaden opportunities for participation, open pathways for contribution, and provide new ways for CentOS users and contributors to bring the power of open source innovation to all areas of the software stack. With Red Hat’s contributions and investment, the CentOS Project will be able to expand and accelerate, serving the needs of community members who require different or faster-moving components layered on top of CentOS, expanding on existing efforts to collaborate with open source projects such as OpenStack, RDO, Gluster, OpenShift Origin, and oVirt.

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I decided to upgrade my Zabbix instance to 2.2 as the upgrade process is supposed to be easier since the database upgrade is performed by the server. Grabbed and installed the latest zabbix-release rpm, fired up yum update and to my surprise no updates 😦 .. It had to be done manually, so I did a rpm -qa | grep zabbix and downloaded the matching updates. This time it worked when running yum localinstall *.rpm , so that had to be it. Pointed my browser to the Zabbix url and that’s when disaster struck ” Database error: The frontend does not match the Zabbix database” A quick look at the server log revealed that the database upgrade failed since it’s trying to drop an inexistent column (lastvalue) from the items table.  Let’s make the database upgrade script happy by creating the missing column (as it will drop it in any case) and restart the server.

mysql -u root -p

use zabbix;

ALTER TABLE items ADD lastvalue VARCHAR(60);

Restart the Zabbix server using service zabbix-server restart and watch the Zabbix server log, the database upgrade process will be shown and once complete you can login again to your instance. Hope this saves someone some frustration.

I always start with a minimal install when provisioning new systems which are usually deployed through Spacewalk but there are some instances where I have no deployment server, so after a DVD install I have a broken XForwarding which is quite easy to fix.

yum install xorg-x11-xauth xorg-x11-fonts*

It’s quite handy when scripted within a kickstart file, which is why I don’t always remember it 🙂 so documenting it on the blog keeps it accessible. You don’t need to plug in all the fonts but if you work with legacy applications or Oracle, you’ll want to have them on the system.

If you’ve played a lot with putty and need a remote session management tool, have a look at PAC Manager @ techmint.com


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