vms over ubuntu

XML配置

1. ubuntu需要修改emulator

<emulator>/usr/bin/qemu-system-x86_64</emulator>

2. 需要cdrom引导安装系统

<disk type='file' device='disk'>
    <driver name='qemu' type='raw' cache='none' io='native'/>
    <source file='/srv/vm/img/openEuler.raw'/>
    <target dev='vda' bus='virtio'/>
    <boot order='1'/>
</disk>
<disk type='file' device='cdrom'>
    <driver name='qemu' type='raw' cache='none' io='native'/>
    <source file='/srv/vm/img/openEuler-24.03-LTS-SP2-x86_64-dvd.iso'/>
    <target dev='sdb' bus='scsi'/>
    <readonly/>
    <boot order='2'/>
</disk>