workstation virtual machine centos7 install kvm

Embedded linux kernel
virtual machine is a process
SPICE is redhat development of open source desktop virtualization specialized data transmission protocol
QEMU is a graphical tool can manage KVM virtual machines, designed to manage KVM, it is usually with KVM Simultaneously.

centos7KVM adds the following features:
the CPU Hot Add
Memory Hot-Add

1, centos7.x System Requirements

4G memory than
processors need to turn on virtualization capabilities
add Independent Disks for KVM virtual machine

2, format independent disks

fdisk -l
Check the name of the hard disk 40g

mkfs -t xfs /dev/sdb
Format the hard disk

Create a directory to mount the hard drive

3, installation of KVM related environmental package

yum install qemu-kvm qemu-kvm-tools virt-manager libvirt virt-install -y

4. Create a virtual machine domain space

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

5, the system will need to install into the local image, for use during the installation

systemctl start libvirtd
systemctl status libvirtd

6. Perform virtual machine installation

vim kvm.sh
virt-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  --noautoconsole
chmod +x kvm.sh

7. vnc connection see installation interface ip virtual machine, the installation is complete as

8, view, and switch operating
virsh shutdown c7-1 // shut down the virtual machine
virsh start c7-1 // start the virtual machine
virsh list --all // view the virtual machine state
to delete the virtual machine
virsh shutdown c7-1 // turn off
virsh undefine c7-1 // delete