openEuler-x86安装 UKUI + Virtual Machine Manager（虚拟系统管理器）

#关闭防火墙和 selinux 并重启
sed -i 's/SELINUX=enforcing/SELINUX=disabled/' /etc/selinux/config
systemctl disable --now firewalld

#配源
vim /etc/yum.repos.d/openEuler.repo

[OS]
name=OS
baseurl=http://repo.openeuler.org/openEuler-21.03/OS/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://repo.openeuler.org/openEuler-21.03/OS/$basearch/RPM-GPG-KEY-openEuler

[everything]
name=everything
baseurl=http://repo.openeuler.org/openEuler-21.03/everything/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://repo.openeuler.org/openEuler-21.03/everything/$basearch/RPM-GPG-KEY-openEuler

[EPOL]
name=EPOL
baseurl=http://repo.openeuler.org/openEuler-21.03/EPOL/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://repo.openeuler.org/openEuler-21.03/OS/$basearch/RPM-GPG-KEY-openEuler

[debuginfo]
name=debuginfo
baseurl=http://repo.openeuler.org/openEuler-21.03/debuginfo/$basearch/
enabled=1
gpgcheck=1
gpgkey=http://repo.openeuler.org/openEuler-21.03/debuginfo/$basearch/RPM-GPG-KEY-openEuler

[source]
name=source
baseurl=http://repo.openeuler.org/openEuler-21.03/source/
enabled=1
gpgcheck=1
gpgkey=http://repo.openeuler.org/openEuler-21.03/source/RPM-GPG-KEY-openEuler

[update]
name=update
baseurl=http://repo.openeuler.org/openEuler-21.03/update/$basearch/
enabled=0
gpgcheck=1
gpgkey=http://repo.openeuler.org/openEuler-21.03/OS/$basearch/RPM-GPG-KEY-openEuler

#更新yum源
yum makecache

#UKUI
UKUI是麒麟软件团队历经多年打造的一款Linux 桌面，主要基于 GTK 和 QT开发。与其它UI界面相比，UKUI更加注重易用性和敏捷度，各元件相依性小，可以不依赖其它套件而独自运行，给用户带来亲切和高效的使用体验。UKUI支持x86_64和aarch64两种架构。
#下载 openEuler21.03及以上 镜像并安装系统。https://repo.openeuler.org/openEuler-21.09/
sudo dnf update
#安装UKUI
sudo dnf install ukui -y
#在确认正常安装后，重启reboot
systemctl set-default graphical.target

#安装virt-manager
yum install -y virt-manager

#打开终端
virt-manager