Quick setup of nested virtualization in KVM and virt-manager

When I was testing Vagrant builds for Fedora I needed to run Vagrant in a virtual machine and then test vagrant libvirt integration there. So to say a needed to do virtualization on the virtual machine. Luckily for me it is possible with KVM and Rhys Oxenhams wrote about setting it up. This post is […]

What attributes RubyGems’ Marshal file really contain?

RubyGems started with a single marshaled file called Marshal.4.8.gz containing the array of every Gem::Specification object for every gem that has been uploaded to RubyGems directory. Since then we have new indexes for RubyGems to speed things up, but good old Marshal.4.8.gz is still around carrying important information about gems from RubyGems.org. Are you interested to […]

libvirt Vagrant boxes with vagrant-mutate

Today I will like to put some light on using the vagrant-mutate plugin for Vagrant to convert (especially) VirtualBox images to libvirt. Why? Because if you start looking for an interesting box on the internet you will find out that most of them are based on VirtualBox images since that is the upstream default provider.