Download the ISO image to the /var/lib/libvirt/images folder of the KVM host. Start virt-manager and opt to create a new VM and select Local install media. Click on browse and select the downloaded ISO image If the OS is not automatically detected, uncheck automatic detection and type in Debian testing Assign memory and CPU resources….
Author: sandeep
OS installation: Debian 11 on the bare metal server.
Download and burn the ISO image onto a USB stick and plug in the USB stick in the server. Power On the server (in my case, it is Dell R430) Press F11 to enter boot manager Select one-shot UEFI menu Select boot from the USB stick Start installation (I prefer to use non-graphical) Select Language…
Preparing custom Ubuntu 20.04 cloud image
Install Ubuntu 20.04 as detailed here. (Guest VM on KVM infra) Hard disk size: Based on trial and error identified that it would be better to have the base disk size as 3.5G Set default password for ‘root; account. sudo passwd Disable consistent device naming – Network interface names are same always (legacy – eth0,…
Ubuntu Server 20.04 on a KVM guest VM (Remove snapd, netplan, motd, and enable legacy networking)
Download and copy the Ubuntu server ISO image to /var/lib/libvirt/images/ folder. Start virt-manager Create a new VM (File -> New Virtual Machine) and choose local install media Click on browse, select the downloaded image Allocate/assign CPU and memory resources Allocate/assign storage as much as required. Provide a name and select a network interface. In my…
OS Installation: Ubuntu 20.04 on a server (Remove snapd, netplan, motd, and enable legacy networking)
Download the ISO image and burn the same onto a USB stick. Insert the USB stick in the server and power on (My server is Dell R430) Press F11 and enter Boot Manager Select Oneshot UEFI Boot option Select boot from the USB stick Select Install Server Select English Language (or whatever your choice is)…
Orchestrating Guest VM(s) using simple scripts on KVM host.
As a developer, I had a need to spin up VMs as and when required. The more I started working on Kubernetes, the need to automate the spinning up of multiple VMs to bring up a setup for configuring a cluster. There were several options, solutions already available to automate the same on KVM. However,…
Installing KVM
Pre-requisite Install Debian 11 or Ubuntu 20.04 server as required. Optional I had upgraded the kernel version by compiling the kernel as explained in this how-to. Installing KVM on Debian Simple and easy – First, install the required packages apt install -y qemu-kvm libvirt-clients libvirt-daemon-system bridge-utils virtinst libvirt-daemon virt-manager Additionally, I had installed libguestfs-tools, for…
Installing NFS Server
The objective is to configure the NFS server on one of the servers in the LAB. Creating the NFS client-server setup is a simple task that can be performed in a few steps – installation, export, mounting, and access. On the server install the required package apt install -y nfs-kernel-server Create a directory that gets…
Openstack – Train : Create networks, router, flavor and launch an instance
<<< Cinder As admin user 1. Create Flavors as required . admin-openrcopenstack flavor create m1.nano –ram 512 –vcpus 1 –disk 10openstack flavor create m1.micro –ram 1024 –vcpus 1 –disk 10openstack flavor create m1.mini –ram 1024 –vcpus 2 –disk 10openstack flavor create m1.small –ram 2048 –vcpus 2 –disk 20openstack flavor create m1.medium –ram 4096 –vcpus 2…
Removing compute node/host from an Openstack deployment
Wanted to remove a compute node from the openstack setup. Stop the services in the compute node service nova-compute stop service neutron-linuxbridge-agent stop # Not sure about the need for stopping the following but did it as I had planned to re-install service lvm2-lvmetad stop service libvirtd stop service lxcfs stop service tgt stop On…