qemu命令总结

1. spice端口

   netstat -ntpl | grep qemu
   virsh domdisplay --type spice {Id or Name}
   

2. 创建镜像

   qemu-img create -f qcow2 ubuntu-14.04.qcow2 20G
   qemu-img info ubuntu-14.04.qcow2
   

3. 镜像压缩

   qemu-img convert -p -c -O qcow2 source.img destination.qcow2
   

4. 创建快照

   qemu-img create -f qcow2 -b base.qcow2 snapshot.qcow2
   

5. resize

   qemu-img resize source.qcow2 +10G
   

声卡

1. 查询支持的声卡

   [localhost ~] $ sudo /usr/libexec/qemu-kvm --soundhw ?
   Valid sound card names (comma separated):
   ac97        Intel 82801AA AC97 Audio
   hda         Intel HD Audio
   pcspk       PC speaker
   
   -soundhw all will enable all of the above
   

2 增加声卡

[localhost ~] $ sudo /usr/libexec/qemu-kvm --soundhw all

Creating Guests with PXE

Red Hat Enterprise Linux 6 Virtualization Host Configuration and Guest Installation Guide