Ruby on Rails distributed with GEM packaging system. If you are installing Rails on Ubuntu probably you will end up using Ubuntu packaging system and GEM in combination. For a proper installation you need to do series of actions. A friend of mine, Umur Ozkul, has written an article for Rails Installation. It is written [...]

I have an Ubuntu Virtualization Server which I have been using for a quite some time. Now that Ubuntu 9.10 released I would like to upgrade it to the Ubuntu 9.10 Karmic release. First you need to install the update-manager-core package. kok@fhome:~$ sudo apt-get install update-manager-core After installing the update-manager-core package, complete upgrade procedure is [...]

Today I was busy with finalizing my KVM based Rails appliance. Appliance is almost ready and I wanted to test it with a simple test application. First problem was missing mysql support. When I tried to install the mysql extensions I got the following error. kok@railsserver:/home/kok/sudo gem install mysql Building native extensions. This could take [...]

If you followed our article series over Ideal Virtualization Solution Using Ubuntu, you suppose to have an up and running KVM based Virtualization Host. Now we will start with actual work. We will start to build and out-roll virtual appliances. Our first appliance will be the repository server. This machine will act like a proxy [...]

Lets start with the requirements. Does our system support KVM? KVM requires a cpu with virtualization support. You need a cpu with INTEL-VT or AMD-V support. With following command you can check if your cpu supports one of the virtualization techniques : egrep ‘(vmx|svm)’ /proc/cpuinfo If you don’t see anything it is a pitty but  [...]

As of 8.04 Hardy Heron release Ubuntu introduced several nice tools and features for Virtualization. Build-in support for KVM Ubuntu Server Edition JeOS (Just enough OS) JeOS is a specialised installation of Ubuntu Server Edition with a tuned kernel that only contains the base elements needed to run within a virtualized environment vm-builder ubuntu-virt-server ( [...]