Guides tagged “virsh”
Step-by-step MdmHost guides about virsh, sorted A-Z.
7 guides
Back up running KVM VMs with virsh and a simple script
Back up live KVM virtual machines without downtime using external snapshots and blockcommit, save the XML definition, compress and copy off-host, schedule with cron and restore.
KVM and libvirt common errors and how to fix them
Fix the most common KVM and libvirt errors: /dev/kvm missing, permission denied on images, network default not active, domain already exists, failed to connect to the hypervisor and more.
KVM live migration with virsh: move running VMs between hosts
Move a running KVM virtual machine to another host with virsh migrate: shared vs local storage, CPU compatibility, network and SSH requirements, and how to verify and troubleshoot.
KVM snapshots with virsh: create, revert and delete
Create, list, revert and delete KVM VM snapshots with virsh, understand internal vs external snapshots, add the guest agent for consistency, and why snapshots are not backups.
Set up a serial console for KVM VMs (virsh console)
Enable a serial console in Linux KVM guests so you can reach them with virsh console without VNC or network: GRUB and kernel settings, getty, rescuing boot problems and exiting cleanly.
USB passthrough to KVM VMs with libvirt
Pass a USB device such as a licence dongle, Zigbee stick or UPS to a KVM virtual machine: find vendor and product IDs, attach by ID or port with virsh, hotplug, and fix common permission issues.
virsh commands cheat sheet for managing KVM virtual machines
The virsh commands you need day to day on a KVM host: list, start, stop and autostart VMs, edit XML, attach disks and NICs, change CPU and RAM, consoles, networks and storage pools.
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