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  • 命令行安装KVM

    查看libvirtd的状态:

    [root@super67 ~]# /etc/init.d/libvirtd status

    libvirtd (pid  2503) is running...

    安装vnc:

    [root@super67 ~]# yum install -y tigervnc

    [root@super67 ~]# yum install -y virt-viewer

    查看虚拟机状态:

    [root@super67 ~]# virsh list --all

     Id    Name                           State

    ----------------------------------------------------

     -     www.linux1.cn                  shut off

    准备镜像文件:

    [root@super67 ~]# ll /var/lib/libvirt/images/ubuntu-16.04-desktop-amd64.iso

    创建磁盘:

    [root@super67 ~]# mkdir /var/lib/libvirt/disk/ -p

    [root@super67 ~]# qemu-img create -f raw /var/lib/libvirt/disk/unbuntu16.raw 10G

    Formatting '/var/lib/libvirt/disk/unbuntu16.raw', fmt=raw size=10737418240

    安装虚拟机:

    [root@super67 ~]# virt-install --name ubuntu16 --ram 1024 --vcpu=1 --disk path=/var/lib/libvirt/disk/unbuntu16.raw --accelerate --cdrom=/var/lib/libvirt/images/ubuntu-16.04-desktop-amd64.iso --network bridge=br0 --graphics vnc

     """

    --name=ubuntu16 #指定guest的名字
    --ram=1024 #指定内存大小
    --vcpus=1 #指定cpu个数
    --disk path=/xx/xx.xx #指定磁盘
    --accelerate #加速
    --cdrom /xx/xx.iso 指定镜像
    --network bridge=br0 #bridge=xx , network:name ,user
    --graphics vnc
    --location= #directory ,nfs:host:/path ,http://host/path ,ftp://host/path

     """

    配置vnc:

    [root@super67 ~]# grep -Ev "^$|^#" /etc/libvirt/qemu.conf

    vnc_listen = "0.0.0.0"

    [root@super67 ~]# /etc/init.d/libvirtd restart

    Stopping libvirtd daemon:                                  [  OK  ]

    Starting libvirtd daemon:                                  [  OK  ]

    [root@super67 ~]# netstat -antup|grep 5900

    tcp        0      0 0.0.0.0:5900              0.0.0.0:*                   LISTEN      18413/qemu-kvm  

    (如果vnc只是监听127.0.0.1那么其他机器是无法使用vnc客户端连接进来的)

    vnc远程连接:5900

    [root@super67 ~]# vncviewer 127.0.0.1:5900

    配置文件:

    [root@super67 qemu]# pwd

    /etc/libvirt/qemu

    [root@super67 qemu]# ll

    total 16

    drwxr-xr-x 2 root root 4096 Sep  4 10:31 autostart            #开机启动相关

    drwx------ 3 root root 4096 Sep  4 09:46 networks             #网络相关

    -rw------- 1 root root 2290 Sep  4 13:13 ubuntu16.xml          #虚拟机配置文件  .xml

    -rw------- 1 root root 2574 Sep  4 10:32 www.linux1.cn.xml

    虚拟机配置文件:

    [root@super67 ~]# vim /etc/libvirt/qemu/ubuntu16.xml

    <!--

    WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE

    OVERWRITTEN AND LOST. Changes to this xml configuration should be made using:

      virsh edit ubuntu16

    or other application using the libvirt API.

    -->

    <domain type='kvm'>                                                #虚拟机类型

      <name>ubuntu16</name>                               #虚拟机名字

      <uuid>729109f3-6bcc-2f44-b1d3-4f9f6bface83</uuid>

      <memory unit='KiB'>1048576</memory>        #虚拟机最大内存

      <currentMemory unit='KiB'>1048576</currentMemory>      #虚拟机当前内存

      <vcpu placement='static'>1</vcpu>              #cpu个数

      <os>

        <type arch='x86_64' machine='rhel6.5.0'>hvm</type>     #全虚拟化

        <boot dev='hd'/>                      #引导类型hd硬盘引导,cdrom光盘引导

      </os>

      <features>

        <acpi/>

        <apic/>

        <pae/>

      </features>

      <clock offset='utc'/>                  #时间相关的

      <on_poweroff>destroy</on_poweroff>

      <on_reboot>restart</on_reboot>

      <on_crash>restart</on_crash>

      <devices>

        <emulator>/usr/libexec/qemu-kvm</emulator>

        <disk type='file' device='disk'>

          <driver name='qemu' type='raw' cache='none'/>

          <source file='/var/lib/libvirt/disk/unbuntu16.raw'/>            #磁盘文件

          <target dev='hda' bus='ide'/>

          <address type='drive' controller='0' bus='0' target='0' unit='0'/>

        </disk>

        <disk type='block' device='cdrom'>

          <driver name='qemu' type='raw'/>

          <target dev='hdc' bus='ide'/>

          <readonly/>

          <address type='drive' controller='0' bus='1' target='0' unit='0'/>

        </disk>

        <controller type='usb' index='0'>

          <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>

        </controller>

        <controller type='ide' index='0'>

          <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>

        </controller>

        <interface type='bridge'>            #网桥

          <mac address='52:54:00:b0:48:17'/>      #mac地址

          <source bridge='br0'/>              #网桥名

          <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>

        </interface>

        <serial type='pty'>                #交互窗口

          <target port='0'/>

        </serial>

        <console type='pty'>

          <target type='serial' port='0'/>

        </console>

        <input type='mouse' bus='ps2'/>

        <graphics type='vnc' port='-1' autoport='yes'/>

        <video>

          <model type='cirrus' vram='9216' heads='1'/>

          <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>

        </video>

        <memballoon model='virtio'>

          <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>

        </memballoon>

      </devices>

    </domain>

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  • 原文地址:https://www.cnblogs.com/fanxuanhui-linux/p/5839186.html
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