虚拟化

1. 安装虚拟化工具套件

   yum groupinstall "Virtualization Host"

2. 安装虚拟化管理工具

   yum install -y virt-install virt-manager

   安装完后，镜像源会被覆盖，此时需要进到/etc/yum/repo.d/下删除新添加的文件，然后恢复CentOS-Base.repo.rpmsave->CentOS-Base.repo

3. 查看虚拟化状态并启动

   systemctl status libvirtd
   
   systemctl restart libvirtd

4. 打开virt-manager的GUI界面

   

   此时打开创建虚拟机的窗口点击创建虚拟机会报错Error: Host does not support any virtualization option，命令行报错

   Jan 20 21:13:56 dotohi.centos libvirtd[108835]: internal error: Failed to start QEMU binary /usr/libexec/qemu-kvm for probing: qemu-kvm: cannot initialize crypto: Unable to initialize gcrypt
   Jan 20 21:13:56 dotohi.centos libvirtd[108835]: Failed to probe capabilities for /usr/libexec/qemu-kvm: internal error: Failed to start QEMU binary /usr/libexec/qemu-kvm for probing: qemu-kvm: cannot initialize c>
   Jan 20 21:16:08 dotohi.centos libvirtd[108835]: internal error: missing emulator in QEMU capabilities cache
   Jan 20 21:16:08 dotohi.centos libvirtd[108835]: Failed to load cached data from '/var/cache/libvirt/qemu/capabilities/3c76bc41d59c0c7314b1ae8e63f4f765d2cf16abaeea081b3ca1f5d8732f7bb1.xml' for '/usr/libexec/qemu-k>
   Jan 20 21:16:08 dotohi.centos libvirtd[108835]: internal error: Failed to start QEMU binary /usr/libexec/qemu-kvm for probing: qemu-kvm: cannot initialize crypto: Unable to initialize gcrypt
   Jan 20 21:16:08 dotohi.centos libvirtd[108835]: Failed to probe capabilities for /usr/libexec/qemu-kvm: internal error: Failed to start QEMU binary /usr/libexec/qemu-kvm for probing: qemu-kvm: cannot initialize c>
   Jan 20 21:16:08 dotohi.centos libvirtd[108835]: internal error: missing emulator in QEMU capabilities cache
   Jan 20 21:16:08 dotohi.centos libvirtd[108835]: Failed to load cached data from '/var/cache/libvirt/qemu/capabilities/3c76bc41d59c0c7314b1ae8e63f4f765d2cf16abaeea081b3ca1f5d8732f7bb1.xml' for '/usr/libexec/qemu-k>
   Jan 20 21:16:08 dotohi.centos libvirtd[108835]: internal error: Failed to start QEMU binary /usr/libexec/qemu-kvm for probing: qemu-kvm: cannot initialize crypto: Unable to initialize gcrypt
   Jan 20 21:16:08 dotohi.centos libvirtd[108835]: Failed to probe capabilities for /usr/libexec/qemu-kvm: internal error: Failed to start QEMU binary /usr/libexec/qemu-kvm for probing: qemu-kvm: cannot initialize c>
   ~

5. 查看gcrypt依赖的套件并安装

   yum search gcrypt
   
    yum install -y libgcrypt-devel.x86_64 libgcrypt.x86_64

   

6. 网络选择

   macvtap Hypervisor default