CentOS 7 qemu 创建虚拟机简单流程

爱在天空下 發表於 2020-4-9 18:49:00

<img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409183340209-1805384093.jpg" alt="">
<h1>查看是否支持虚拟化</h1>
<div class="cnblogs_Highlighter">
<pre class="brush:csharp;gutter:true;">egrep -o '(vmx|svm)' /proc/cpuinfo</pre>
</div>
如果有显示则支持虚拟化，没有显示则不支持
<img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409180402357-178058279.png" alt=""> 
<h1>安装qemu 和virt 系列软件包</h1>
<div class="cnblogs_Highlighter">
<pre class="brush:csharp;gutter:true;">yum install qemu-kvm qemu-img virt-manager libvirt virt-install virt-viewer </pre>
</div>
qemu-kvm：qemu模拟器
qemu-img：qemu磁盘image管理器
virt-install：用来创建虚拟机的命令行工具
libvirt：提供libvirtd daemon来管理虚拟机和控制hypervisor
virt-viewer：图形控制台
 
如果安装失败更换yum源为阿里源
<h1>启动libvirt</h1>
<div class="cnblogs_Highlighter">
<pre class="brush:csharp;gutter:true;">service libvirtd start</pre>
</div>
<h1>启动virt 图形化管理界面，安装虚拟机</h1>
<div class="cnblogs_Highlighter">
<pre class="brush:csharp;gutter:true;">virt-manager
</pre>
</div>
　
 <img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409180519806-624710055.png" alt="">
<img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409180523944-1894582056.png" alt="">
使用iso镜像安装虚拟机，找到iso镜像的位置
 <img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409180529033-1841943528.png" alt="">
分配内存和cpu 
 <img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409180532713-1934156408.png" alt=""> 
分配磁盘 
 <img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409180537869-996588920.png" alt="">
<img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409180541085-1538493182.png" alt=""> 
<img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409181049247-1892636588.png" alt="">
开始安装
<img src="https://img2020.cnblogs.com/blog/1060878/202004/1060878-20200409181055699-538365478.png" alt="">
 
 
创建好的虚拟机的xml文件如下，可以作为一个虚拟机模板使用。如何使用xml创建虚拟机，请参考另一篇博客制作openstack使用的window镜像
<div class="cnblogs_code">
<pre><domain type='qemu' id='1'>
<name>centos7.0</name>
<uuid>15e50a63-3bf4-4d53-a13a-ff0b4f45a8ca</uuid>
<memory unit='KiB'>1048576</memory>
<currentMemory unit='KiB'>1048576</currentMemory>
<vcpu placement='static'>1</vcpu>
<resource>
<partition>/machine</partition>
</resource>
<os>
<type arch='x86_64' machine='pc-i440fx-rhel7.0.0'>hvm</type>
<boot dev='cdrom'/>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
</features>
<clock offset='utc'>
<timer name='rtc' tickpolicy='catchup'/>
<timer name='pit' tickpolicy='delay'/>
<timer name='hpet' present='no'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>destroy</on_reboot>
<on_crash>destroy</on_crash>
<pm>
<suspend-to-mem enabled='no'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/libexec/qemu-kvm</emulator>
<disk type='file' device='disk'>
 <driver name='qemu' type='qcow2'/>
 <source file='/var/lib/libvirt/images/centos7.0.qcow2'/>
 <backingStore/>
 <target dev='vda' bus='virtio'/>
 <alias name='virtio-disk0'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</disk>
<disk type='file' device='cdrom'>
 <driver name='qemu' type='raw'/>
 <source file='/home/openlab/openlab/CentOS-7-x86_64-DVD-1908.iso'/>
 <backingStore/>
 <target dev='hda' bus='ide'/>
 <readonly/>
 <alias name='ide0-0-0'/>
 <address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<controller type='usb' index='0' model='ich9-ehci1'>
 <alias name='usb'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x7'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
 <alias name='usb'/>
 <master startport='0'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci2'>
 <alias name='usb'/>
 <master startport='2'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x1'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci3'>
 <alias name='usb'/>
 <master startport='4'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'>
 <alias name='pci.0'/>
</controller>
<controller type='ide' index='0'>
 <alias name='ide'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<controller type='virtio-serial' index='0'>
 <alias name='virtio-serial0'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</controller>
<interface type='network'>
 <mac address='52:54:00:27:71:37'/>
 <source network='default' bridge='virbr0'/>
 <target dev='vnet0'/>
 <model type='virtio'/>
 <alias name='net0'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<serial type='pty'>
 <source path='/dev/pts/1'/>
 <target type='isa-serial' port='0'>
 <model name='isa-serial'/>
 </target>
 <alias name='serial0'/>
</serial>
<console type='pty' tty='/dev/pts/1'>
 <source path='/dev/pts/1'/>
 <target type='serial' port='0'/>
 <alias name='serial0'/>
</console>
<channel type='unix'>
 <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/domain-1-centos7.0/org.qemu.guest_agent.0'/>
 <target type='virtio' name='org.qemu.guest_agent.0' state='disconnected'/>
 <alias name='channel0'/>
 <address type='virtio-serial' controller='0' bus='0' port='1'/>
</channel>
<channel type='spicevmc'>
 <target type='virtio' name='com.redhat.spice.0' state='connected'/>
 <alias name='channel1'/>
 <address type='virtio-serial' controller='0' bus='0' port='2'/>
</channel>
<input type='tablet' bus='usb'>
 <alias name='input0'/>
 <address type='usb' bus='0' port='1'/>
</input>
<input type='mouse' bus='ps2'>
 <alias name='input1'/>
</input>
<input type='keyboard' bus='ps2'>
 <alias name='input2'/>
</input>
<graphics type='spice' port='5900' autoport='yes' listen='127.0.0.1'>
 <listen type='address' address='127.0.0.1'/>
 <image compression='off'/>
</graphics>
<sound model='ich6'>
 <alias name='sound0'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</sound>
<video>
 <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
 <alias name='video0'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
<redirdev bus='usb' type='spicevmc'>
 <alias name='redir0'/>
 <address type='usb' bus='0' port='2'/>
</redirdev>
<redirdev bus='usb' type='spicevmc'>
 <alias name='redir1'/>
 <address type='usb' bus='0' port='3'/>
</redirdev>
<memballoon model='virtio'>
 <alias name='balloon0'/>
 <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
</memballoon>
</devices>
<seclabel type='dynamic' model='dac' relabel='yes'>
<label>+107:+107</label>
<imagelabel>+107:+107</imagelabel>
</seclabel>
</domain></pre>
</div>
  
来源：https://www.cnblogs.com/goldsunshine/p/12668632.html

頁: [1]

琼殿技术论坛's Archiver

CentOS 7 qemu 创建虚拟机简单流程