kvm 下运行的 WINWS7磁盘空间不足 增加磁盘 实战(这个有问题，还未解决)
创建一个新硬盘:# qemu-img create -f qcow2 add_win_desk.img 5G
Formatting 'add_win_desk.img', fmt=qcow2 size=5368709120 encryption=off cluster_size=65536
# ll -h add_win_desk.img
-rw-r--r-- 1 root root 193K Dec 12 10:59 add_win_desk.img
# 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:
# 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:
# virsh destroy win64
Domain win64 destroyed
# 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
# 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。
# 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:
# cd /etc/libvirt/qemu/
# ls
1xp.xml app02.xmlha01.xmlnetworks
app01.xmlc01.xml ha02.xmlwin64.xml
# 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！！！！
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