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Hammer – enable cpu hotadd and memory hotadd for VMware vShpere or vCenter

While rummaging around the interwebs I came across documentation stating I should use  memory_hotadd=1  and cpu_hotadd=1  but neither worked, strangely…

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Hammer – NilClass error

When deploying hosts with hammer you might run into an error like:  “undefined method `provided_attributes’ for nil:NilClass”   The reason…

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Tough lessons

On an Ubuntu system that acts a s a hypervisor, the system claimed to not support virtualization after a an…

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Building your own cheap OTP setup

A simple OTP setup Sometimes you want to add a bit of extra security to an ssh server but don’t want…

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Hammer time! Using the Foreman CLI to provision hosts

Meeting Hammer Wandering around in /usr/bin I found Hammer, the tool of the Foreman of which the site of Documentation…

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Fix persistent interface naming for Red hat 7.2 to 7.3 upgrade

Persistent interface naming in RHEL 7.3 RHEL 7.3 handels NIC names differently due to the new systemd implementation. The script…

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Setup PXE in Red Hat Satellite 6.2

When setting up a Satellite server you might not have enabled PXE functionality. Also, when upgrading from Satellite 6.1.10 ,…

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Ansible tower has been pushed back to the satellite 6.3 release

Alas, as I found today, satellite 6.2 definitely does not have Ansible Tower onboard, when asking Red Hat they responded…

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Upgrading Satellite 6.1.10 to 6.2.X

When upgrading to the latest satellite version, some issues might arise. In my particular case I lost all subscriptions and…

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RHEL 7.3 nic device naming

RHEL 7.3 Introduces a new version of systemd which handles devicenaming different than before. After upgrading to RHEL 7.3 you…

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