centos6 kvm配置软驱

相关配置如下：

重点为粗体部分

<os>
   <type arch='x86_64' machine='rhel6.0.0'>hvm</type>
   <boot dev='cdrom'/>
   <boot dev='fd'/>  #代表软驱
 </os>
 <features>
   <acpi/>
   <apic/>
   <pae/>
 </features>
 <clock offset='localtime'/>
 <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='qcow2' cache='none'/>
     <source file='/gfs/sysdisk/sysdisk-pool/virtio-xp2.img'/>
     <target dev='hda' bus='ide'/>
     <address type='drive' controller='0' bus='0' unit='0'/>
   </disk>
   <disk type='file' device='cdrom'>
     <driver name='qemu' type='raw'/>
     <source file='/gfs/sysdisk/installdisk-pool/custom-xp-sp3.iso'/>
     <target dev='hdc' bus='ide'/>
     <readonly/>
     <address type='drive' controller='0' bus='1' unit='0'/>
   </disk>
   <disk type='file' device='floppy'>
     <driver name='qemu' type='raw'/>
     <source file='/gfs/sysdisk/installdisk-pool/virtio-win-1.5.3.vfd'/>
     <target dev='fda' bus='fdc'/>
     <address type='drive' controller='0' bus='0' unit='0'/>
   </disk>