CentOS8使用Libvirt实现虚拟化
安装包
[root@vm-mini~]# yum groupinstall "Virtualization Host" -y
Repositoryextras is listed more than once in the configuration
Last metadataexpiration check: 0:00:28 ago on Sat 17 Apr 2021 06:48:06 PM CST.
No match forgroup package "insights-client"
No match forgroup package "centos-release"
No match forgroup package "centos-release-eula"
Dependenciesresolved.
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Package Arch Version Repository Size
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Upgrading:
NetworkManager x86_64 1:1.26.0-12.el8_3 base 2.4 M
NetworkManager-adsl x86_64 1:1.26.0-12.el8_3 base 138 k
NetworkManager-bluetooth x86_64 1:1.26.0-12.el8_3 base 164 k
…
…
libvirt-bash-completion-6.0.0-28.1.module_el8.3.0+755+88436ea4.x86_64
libvirt-client-6.0.0-28.1.module_el8.3.0+755+88436ea4.x86_64
libvirt-daemon-config-nwfilter-6.0.0-28.1.module_el8.3.0+755+88436ea4.x86_64
scrub-2.5.2-14.el8.x86_64
supermin-5.1.19-10.module_el8.3.0+555+a55c8938.x86_64
syslinux-6.04-4.el8.x86_64
syslinux-extlinux-6.04-4.el8.x86_64
syslinux-extlinux-nonlinux-6.04-4.el8.noarch
syslinux-nonlinux-6.04-4.el8.noarch
virtio-win-1.9.14-4.el8.noarch
Complete!
查看安装完后
[root@server-3~]# virsh version
Compiledagainst library: libvirt 6.0.0
Usinglibrary: libvirt 6.0.0
Using API:QEMU 6.0.0
Runninghypervisor: QEMU 4.2.0
重新启动服务并设置为开机自启
[root@server-3 ~]# systemctl start libvirtd
[root@server-3 ~]# systemctl enable libvirtd
创建并启动虚拟机
[root@server-3 ~]# virt-manager
bash: virt-manager: command not found...
Install package 'virt-manager' toprovide command 'virt-manager'? [N/y] y
* Waiting inqueue...
* Loading listof packages....
The following packages have to be installed:
python3-argcomplete-1.9.3-6.el8.noarch Bashtab completion for argparse
python3-libvirt-6.0.0-1.module_el8.3.0+555+a55c8938.x86_64 Thelibvirt virtualization API python3 binding
virt-manager-2.2.1-3.el8.noarch Desktoptool for managing virtual machines via libvirt
virt-manager-common-2.2.1-3.el8.noarch Commonfiles used by the different Virtual Machine Manager interfaces
Proceed with changes? [N/y] y
* Waiting inqueue...
* Waiting forauthentication...
* Waiting inqueue...
* Loading listof packages....
* Downloadingpackages...
* Requestingdata...
* Testingchanges...
* Installingpackages...
下载测试镜像，并放到/var/lib/libvirt/images目录下，这是KVM默认查找镜像文件的地方。
依次点击以下
点击Importexisting disk image --> Forward
点击Browse…
选择镜像--> Choose Volume
搜索Generic -->Forward
选择内存和CPU -->Forward
点击Finish