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In my post How to fix kernel_task CPU usage on Yosemite, I first wrote about how a broken logic board can trigger high CPU usage from kernel_task as well as how to fix it. When El Capitan later were release, the issue remained. Now, with macOS Sierra out, I upgraded my old MacBook Pro (8,2) as well. As expected, the issue remained the same. Luckily, the same …

(I try hard to stay away from Windows environments, but sometimes it’s unavoidable.) Recently I ran across a strange issue with a HP LaserJet 500 colorMFP M570dn. The printer worked great for years, then all of the sudden, it started to act up. Applying the latest firmware didn’t solve the issue, so it started probing. The issue was that the printer randomly …

Provisioner I’ve been working on Provisioner for a while now and it’s starting to come together. Most recently I rolled out complete API documentation as well as a brand spanking new website (powered by Jekyll and Github Pages). I’m still trying to think of more use cases, so that’s part of what I will be working on next, as well as better documentation at …

Viktor Petersson, Screenly I was recently interviewed by Dave Haynes of Sixteen:Nine about Screenly.

I recently had to migrate a number of VMs currently running on an NFS share to an iSCSI target. During my research, I was surprised how little documentation there was around this, so I decided to whip up this quick little piece about how to do it. Here are the steps: Create a new iSCSI target (one per VM/image you’re migrating). This step varies depending on …

Here’s my deck from tonight’s talk at Ansible London.

Digital signage solution, Screenly, chooses Canonical’s Ubuntu Core Super excited to announce that Screenly partners with Ubuntu/Canonical to bring Screenly to Ubuntu Core.

How Weave Net Enables a Global Docker Cluster with OnApp I guest blogged a bit on Weave’s blog today.

Here’s my deck from my recent IoT London talk:

Sometime ago, I wrote the blog post How to fix kernel_task CPU usage on Yosemite. This post still receives a great amount of traction, so I wanted to post an update that reflects the covers how to do this on El Capitan. The process is largely the same, but requires a bit more work due to the changes to the additional security that El Capitan introduced to …