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Little things worth knowing: the latest public-yum-ol7.repo configuration file enables an upgrade to UEK R5

For a little while now I have been using Ansible for all installation/configuration tasks I do in the lab. I can’t really be bothered to do these things by typing commands anymore: once you get the hang of Ansible, you can develop an urge to automate everything. As part of my playbook installing the Oracle database on Oracle Linux, I replace /etc/yum.repos.d/public-yum-ol7.repo with the current version from Oracle’s server to make sure I have the latest and greatest software available.

Building vmware-tools in your Oracle Linux UEK3 VM

This is a quick writeup of an oddity I found while trying to install the vmwareware tools in an Oracle Linux host with the UEK3 kernel enabled (which is by default).

This is what is encountered during the vmware tools installation dialog when running

Searching for a valid kernel header path...
The path "" is not a valid path to the 3.8.13-16.2.2.el6uek.x86_64 kernel 
Would you like to change it? [yes]

The building of vmware tools fail because the kernel headers can not be found: the installer doesn’t see the kernel headers, whilst you probably installed it (it’s the kernel-uek-devel package belonging to the running kernel).

Get a feel for enterprise block level replication using drbd

I didn’t really have a lot of exposure to block-level replication on the storage level before an engagement in the banking industry. I’m an Oracle DBA, and I always thought: why would I want to use anything but Oracle technology for replicating my data from one data centre to another? I need to be in control! I want to see what’s happening. Why would I prefer storage replication over Data Guard?

Oracle (finally) announces support for Oracle Database 11gR2 on OEL6

Over a year after first releasing Oracle Enterprise Linux 6, Oracle finally announced Thursday that it will support running Oracle Databases on Oracle Enterprise Linux 6 (OEL6). Currently, the certification is only valid with the Unbreakable Enterprise Kernel (UEK).