Virtualization – nixCraft

How to forcefully shutdown a guest VM using virsh command on Linux KVM

February 26, 2017in CentOS, Debian / Ubuntu, Linux, Linux KVM, RedHat and Friends, Suse, Virtualization last updated February 26, 2017

I used the command ‘virsh shutdown vm1’ to shut down a guest named vm1 using the virsh command. However, it is still running, and my vm1 is not responding to an ssh session. Is there is a way to forcefully stop or kill a guest VM using the virsh command from host server?

How to clone existing KVM virtual machine images on Linux

February 16, 2017February 28, 2017in CentOS, Debian / Ubuntu, Linux, Linux KVM, RedHat and Friends, Suse, Virtualization last updated February 28, 2017

I wanted to clone my Debian or Ubuntu Linux KVM VM for testing purpose. How do I clone existing virtual machine images under KVM?

How to rename LXD / LXC container

February 15, 2017February 15, 2017in CentOS, Debian / Ubuntu, Linux, Linux Containers (LXC), RedHat and Friends, Suse, Virtualization last updated February 15, 2017

How do I rename an LXD managed LXC container under a Linux operating system?
Continue reading “How to rename LXD / LXC container”

How to install LXD container hypervisor on Ubuntu 16.04 LTS server

November 7, 2016April 26, 2017in Linux Containers (LXC), Ubuntu Linux, Virtualization last updated April 26, 2017

How do I install LXD container “hypervisor” to runs unmodified Debian/Ubuntu/CentOS Linux operating systems VM at incredible speed on a Ubuntu Linux 16.04 LTS server?

How to delete KVM VM guest using virsh command

October 28, 2016October 28, 2016in CentOS, Debian / Ubuntu, Linux, Linux KVM, RedHat and Friends, Suse, Virtualization last updated October 28, 2016

I am a new Linux and KVM user. How do I delete a VM guest with virsh command line on Linux operating system? How do I delete a virtual machine called vps42 on Ubuntu or CentOS Linux server?

How to determine Linux guest VM virtualization technology

June 28, 2016June 28, 2016in CentOS, Debian / Ubuntu, Linux, Linux KVM, RedHat and Friends, Suse, VirtualBox, Virtualization last updated June 28, 2016

I have a cloud-based virtual machine running Ubuntu and CentOS Linux server. It may or may not be virtualized. How do I determine what kind of virtualization technology (VMWARE/ KVM/ XEN/ VirtualBox/ Container/ lxc/Hyper-V etc.) a Linux guest system running on? How do I find out the virtualization type of a CentOS 7 Linux VPS?

Linux: lxc forcefully stop and kill container

March 21, 2016March 21, 2016in Linux, Linux Containers (LXC), Virtualization last updated March 21, 2016

I want to stop the application running inside a container. I issued lxc-stop -n myapp but the command is not returning to the shell prompt, and my lxc container entered in hang state. How do I kill my container running on Ubuntu Linux host?