run CentOS Atomic under KVM

Here is how to run CentOS Atomic host under KVM.

Reference

http://www.projectatomic.io/docs/quickstart/

KVM host

# tail -1 /etc/lsb-release DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS" # uname -ri 3.19.0-33-generic x86_64 # kvm --version QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.22), Copyright (c) 2003-2008 Fabrice Bellard

Download CentOS Atomic qcow2 image.

# ls CentOS-Atomic-Host-7-GenericCloud.qcow2.xz CentOS-Atomic-Host-7-GenericCloud.qcow2.xz # unxz CentOS-Atomic-Host-7-GenericCloud.qcow2.xz

copy qcow2 to /var/lib/libvirt/images directory.

# cp CentOS-Atomic-Host-7-GenericCloud.qcow2 /var/lib/libvirt/images/CentOS7-Atomic-01.qcow2

refresh pool ‘default’

# virsh pool-refresh default Pool default refreshed

Prepare cloud-init source ISO

Create a meta-data file.

# cat meta-data instance-id: atomic-host001 local-hostname: atomic01.example.org

Create a user-data file.

# cat user-data #cloud-config password: atomic ssh_pwauth: True chpasswd: { expire: False }

Make an ISO file

# genisoimage -output init.iso -volid cidata -joliet -rock user-data meta-data Total translation table size: 0 Total rockridge attributes bytes: 331 Total directory bytes: 0 Path table size(bytes): 10 Max brk space used 0 183 extents written (0 MB)

Create a virtual machine for CentOS Atomic host.

import qcow2 image

attach init.iso

Here is Boot Options.

start the VM and access to the VM via ‘virsh console’

user : centos

pass : atomic

# virsh console CentOS-Atomic-01 Connected to domain CentOS-Atomic-01 Escape character is ^] CentOS Linux 7 (Core) Kernel 3.10.0-327.4.5.el7.x86_64 on an x86_64 atomic01 login: centos Password: [centos@atomic01 ~]$ sudo su – -bash-4.2# hostname atomic01.example.org -bash-4.2# yum update bash: yum: command not found -bash-4.2# atomic host upgrade Updating from: centos-atomic-host:centos-atomic-host/7/x86_64/standard 1 metadata, 0 content objects fetched; 602 B transferred in 1 seconds No upgrade available.