Shulou(Shulou.com)06/02 Report--

Embed into the linux kernel

A virtual machine is a process

SPICE is an open source dedicated desktop virtualization data transfer protocol developed by redhat.

QEMU is a tool that can manage KVM virtual machines graphically, specifically for managing KVM, so it usually appears at the same time as KVM.

The following features are added to centos7KVM:

Cpu Hot add

Memory hot addition

1. Centos7.x system requirements

More than 4GB of memory

Processor needs to turn on virtualization function

Add stand-alone disks for use by KVM virtual machines

2. Format stand-alone disk

Fdisk-l

View the name of the 40g hard drive

Mkfs-t xfs / dev/sdb

Format the hard disk

Create directory and mount hard disk

3. Install the KVM-related environment package yum install qemu-kvm qemu-kvm-tools virt-manager libvirt virt-install-y4 and create the domain space of the virtual machine.

Qemu-img create-f raw / vdir/c7-1.img 10G

5. Put the system image that needs to be installed locally for use during installation

Systemctl start libvirtdsystemctl status libvirtd6. Execute virtual machine installation vim kvm.shvirt-install-- name c7-1-- virt-type kvm-- memory=2048-- location=/opt/CentOS-7.6-x86_64-DVD-1810.iso-- disk path=/vdir/c7-1.img-- network network=default-- graphics vnc,listen=0.0.0.0-- noautoconsolechmod + x kvm.sh

7. Vnc connects to the virtual machine ip to see the installation interface. After the installation is completed, it is as follows

8. View and switch operation

Virsh shutdown c7-1 / / shut down the virtual machine

Virsh start c7-1 / / start the virtual machine

Virsh list-- all / / View virtual machine status

Delete a virtual machine

Virsh shutdown c7-1 / / shut down first

Virsh undefine c7-1 / / delete again

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