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KVM

KVM🔗

Check CPU virtualisation support

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ls /dev/kvm
# or
lsmod | grep kvm

Config and Management🔗

Cumbersome directly, but tools exist to help

  • libvirt: command line tool
  • GUI: GNOME Boxes, …

Quick-start🔗

Following RedHat guide

  1. confirm CPU virtualisation: sudo grep -E 'svm|vmx' /proc/cpuinfo
  2. obtain image, e.g. from OpenStack image guide

  3. customisee VM

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    virt-customize \
-a /var/lib/libvirt/images/imagetest1.qcow2 \
--hostname vmlab01 \
--root-password password:rootpw \
--ssh-inject 'root:file:labkey.pub' \
--uninstall cloud-init \
--selinux-relabel

  4. install VM (requires active network1)

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    virt-install \
--name vmlab01 \
--memory 1024 \
--vcpus 1 \
--disk /var/lib/libvirt/images/image.qcow2 \
--import \
--os-type linux --os-variant generic \
--noautoconsole

  5. access VM

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    virsh domifaddr vmlab01
ssh -i labkey root@192.168.122.76

References🔗

  1. error network ... not active:

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    # virsh net-list --all
virsh net-start default
# start at boot
virsh net-autostart default
     ↩