Get a newer version of e2fsck

You will hit an error with your e2fsck version. In my case the issue happened in Centos7, when I try to expand the disk for a fedora34 qcow2 image. qemu-img resize fedora-new.qcow2 +20G You will hit an error with your e2fsck version. You will need to download the latest source binary of e2fsprogs from your…

IPMI trick for undercloud via VirtualBMC

Red Hat have been pushing its automated installation of OpenStack with Director based on TripleO concept over the last years. Many Telcos are adopting this concept for the flexibility and agility that automation brings. This post called “IPMI trick for undercloud via VirtualBMC” is support material for your lab and use KVM instances simulating bare…

Director OSP 16.1 install short version

Red Hat have been pushing its automated installation of OpenStack with Director based on TripleO concept over the last years. Many Telcos are adopting this concept for the flexibility and agility that automation brings. This post called “Director OSP 16.1 install short version” is a sort of summary of what I did in my lab…

Kubernetes homelab: Prepping cluster with KVM and OpenVSwitch

We have a small server and we’re going to set up some VMs in KVM for a Kubernetes homelab. I am planing to use OpenVSwitch for my virtual network, set a proxy and a DNS, and finally, install Rancher, and create a cluster with Calico.  Over this post I am sharing my notes about installing…

Install Windows 2012R2 in KVM

Not a fan of windows. Some app requires windows though. We figured (after some google search) to install Windows 2012R2 in KVM loading the virtio drives from a cdrom iso over the setup process. 1. First of all you need to have the iso media (cdrom) and download it at your KVM (i.e. evaluation version…

Resize and manage cloud-init in KVM for Centos QCOW2 images

The following tools will help you to create KVM VMS or domains using CentOS Cloud images. Those images can be downloaded from http://cloud.centos.org/centos/7/images. Those images are ready to use with cloud-init scripts. cloud-init basically requires two files in a CD ISO image you have to insert during the VM creation with virt-install. Basically this post…