kvm 镜像制作与 ova镜像转换

07008

一、kvm通过iso 安装镜像


1、生成空的img文件
qemu-img create -f qcow2 /opt/data/rock-feibiao/slse11-sp4/SLES-11-SP4-DVD-x86_64-GM-DVD1.img -opreallocation=metadata 20G

2、参考xml文件： 更改 name  iso位置  img位置
默认cpu mode 使用 ide 硬盘，后面可再安装virtio驱动
# more /opt/data/rock-feibiao/slse11-sp4/SLES-11-SP4-DVD-test.xml

<domain type='kvm'>
  <name>rock_SLES-11-SP4-DVD-test-02</name>
  <memory unit='KiB'>1048576</memory>
  <currentMemory unit='KiB'>1048576</currentMemory>
  <vcpu placement='static'>2</vcpu>
  <cputune>
    <shares>100</shares>
  </cputune>
  <os>
    <type arch='x86_64' machine='rhel6.3.0'>hvm</type>
        <boot dev='hd'/>
    <bootmenu enable='yes'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <pae/>
  </features>
  <!--
  <cpu mode='custom' match='exact'>
    <model fallback='allow'>cpu64-rhel6</model>
    <feature policy='require' name='aes'/>
    <feature policy='require' name='avx'/>
    <feature policy='require' name='popcnt'/>
    <feature policy='require' name='sse4.1'/>
    <feature policy='require' name='sse4.2'/>
    <feature policy='require' name='x2apic'/>
  </cpu>
  -->
  <clock offset='utc'>
    <timer name='pit' tickpolicy='delay'/>
  </clock>
  <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='cdrom'>
   <source file='/opt/data/rock-feibiao/slse11-sp4/SLES-11-SP4-DVD-x86_64-GM-DVD1.iso'></source>
   <target dev='hdd' bus='ide'></target>
   <readonly></readonly>
   </disk>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2' cache='writethrough' io='native'/>
      <source file='/opt/data/rock-feibiao/slse11-sp4/SLES-11-SP4-DVD-x86_64-GM-DVD1.img'/>
      <target dev='vda' bus='virtio'/>
      <serial>UCLOUD-LOCAL-SDA</serial>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </disk>
    <controller type='usb' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'/>
    <interface type='bridge'>
      <!--
      <mac address='52:54:00:2f:b6:bc'/>
      -->
      <source bridge='br0'/>
      <virtualport type='openvswitch'>
        <parameters interfaceid='f136d74f-9da4-41e6-8740-f9a517b1368a'/>
      </virtualport>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <input type='tablet' bus='usb'/>
    <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='0x05' function='0x0'/>
    </memballoon>
  </devices>
</domain>

3、启动、登录 虚拟机
  virsh create /opt/data/rock-feibiao/slse11-sp4/SLES-11-SP4-DVD-test.xml
  virsh vncdisplay rock_SLES-11-SP4-DVD-test-02
  通过宿主机ip与端口 VNC登录虚拟机安装iso； 安装成功后 img文件及可用


二、OVA镜像转换
1. 解压file.ova文件：
# tar -xvf rsa-am-virtual-appliance-8.1.0.0.0.ova
2. 转换解压后的vmdk文件：
例：qemu-img convert -O qcow2 file.vmdk file.qcow2 -o compat=0.10
3、通过xml 启动img 若是无法启动使用ide 启动后安装virtio驱动

三、virtio驱动安装
解压initrd.img到指定目录

mkdir temp
cd temp
gunzip -c /boot/initrd-xxx.img | cpio -i

拷贝kernel module到initrd目录

cp /lib/modules/xxx/kernel/driver/virtio/virtio.ko lib/
cp /lib/modules/xxx/kernel/driver/virtio/virtio_ring.ko lib/
cp /lib/modules/xxx/kernel/driver/virtio/virtio_pci.ko lib/
cp /lib/modules/xxx/kernel/driver/block/virtio_blk.ko lib

修改脚本文件，自动加载脚本文件

vi init
添加module
insmod lib/virtio.ko
insmod lib/virtio_ring.ko
insmod lib/virtio_pci.ko
insmode lib/virtio_blk.ko

重新打包initrd 目录

find . | cpio -c -o >../initrd-xxx.img
cd ..
gzip initrd-xxx.img
cp initird-xxx.img.gz /boot/initrd-xxx.img

走四方

不错