1、使用virt-install安装时报错

     Starting install…

ERROR internal error process exited while connecting to monitor: char device redirected to /dev/pts/2
kvm: -drive file=/home/muge0913/workstation/kvm/test.img,if=none,id=drive-ide0-0-0,format=raw: could not open disk p_w_picpath/home/muge0913/workstation/kvm/test.img: Permission denied

此报错表示运行权限不足或没权限展开镜像文件

处理：

1.1、可赋予ISO镜像文件权限或者移动别的目录再试

1.2、编辑/etc/libvirt/qemu.conf，修改一下内容。增加root的操作权限

user = “root”

# The group for QEMU processes run by the system instance. It can be

# specified in a similar way to user.

group = “root”

# Whether libvirt should dynamically change file ownership

# to match the configured user/group above. Defaults to 1.

# Set to 0 to disable file ownership changes.

dynamic_ownership = 0

2、kvm虚拟机鼠标不同步

在虚拟机配置文件中的配置中添加

3、连接libvirt管理程序失败

     3.1、报错信息

error: Failed to reconnect to the hypervisor
error: no valid connection
ERROR：internal error Unable to locate libvirtd daemon in $PATH

     原因：没有安装libvirt管理程序

解决办法：
yum -y install libvirt

     3.2、安装完成后报连接失败

            报错信息

error: Failed to reconnect to the hypervisor
error: no valid connection
error: Failed to connect socket to '/var/run/libvirt/libvirt-sock': No such file or directory

     原因：libvirt服务没启动

解决办法：
libvirtd -d

4、克隆虚拟机需注意问题

     4.1、清除计算机SID

     4.2、克隆后修改克隆虚拟机的VNC端口。

5、启动虚拟机是报错Unable to read from monitor: Connection reset by peer

     思路:查看报错日志

     大多解决办法：

     5.1、先把restore移除

               virsh  managedsave-remove vm-name

               然后启动vm-name

     5.2、检查vnc端口是否冲突