创建一个新硬盘:
[root@NB vhost]# qemu-img create -f qcow2 add_win_desk.img 5G Formatting 'add_win_desk.img', fmt=qcow2 size=5368709120 encryption=off cluster_size=65536
[root@NB vhost]# ll -h add_win_desk.img -rw-r--r-- 1 root root 193K Dec 12 10:59 add_win_desk.img
[root@NB vhost]# qemu-img info add_win_desk.img image: add_win_desk.img file format: qcow2 virtual size: 5.0G (5368709120 bytes) disk size: 196K cluster_size: 65536
查看现在正在运行的虚机:
[root@NB vhost]# virsh list Id Name State ---------------------------------------------------- 1 win64 running 2 c01 running
先关掉要加硬盘的虚机win64,然后编辑该虚机的配置文件:
[root@NB vhost]# virsh destroy win64 Domain win64 destroyed [root@NB vhost]# virsh list --all Id Name State ---------------------------------------------------- 2 c01 running - 1xp shut off - app01 shut off - app02 shut off - ha01 shut off - ha02 shut off - win64 shut off [root@NB vhost]# virsh edit win64 .. <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/data/vhost/add_win_desk.img'/> <target dev='hda' bus='ide'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> ...下面的报错是因为<address type='drive' controller='0' bus='0' target='0' unit='0'/>
应该是:<address type='drive' controller='0' bus='0' target='0' unit='1'/>
注意，我们在些使用的硬盘接口为ide接口，硬盘名称为hdb,所以添加完毕后系统是可以直接识别的。
[root@NB vhost]# virsh start win64 error: Failed to start domain win64 error: internal error Process exited while reading console log output: qemu-kvm: -drive file=/data/vhost/add_win_desk.img,if=none,id=drive-ide0-0-0,format=qcow2,cache=none: Duplicate ID 'drive-ide0-0-0' for drive 启动失败！！！！
重新加载配置文件:
[root@NB qemu]# cd /etc/libvirt/qemu/ [root@NB qemu]# ls 1xp.xml app02.xml ha01.xml networks app01.xml c01.xml ha02.xml win64.xml [root@NB qemu]# virsh define win64.xml Domain win64 defined from win64.xml
看计算机管理:
可见磁盘未分配，右击分配磁盘定义盘符：
成功！！！！