vmware ubuntu网络问题no such device

之前装了vmware一直上不了网，一直没弄明白为什么，vm中配置的上网方式是NAT，也就是说跟宿主机一样的对外ip
ifconfig之后只有lo

netease@mysql1:~$ ifconfig
lo        Link encap:本地环回  
          inet 地址:127.0.0.1  掩码:255.0.0.0
          inet6 地址: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  跃点数:1
          接收数据包:4408 错误:0 丢弃:0 过载:0 帧数:0
          发送数据包:4408 错误:0 丢弃:0 过载:0 载波:0
          碰撞:0 发送队列长度:0 
          接收字节:220400 (215.2 KB)  发送字节:220400 (215.2 KB)

restart提示eth0不存在

netease@mysql1:~$ sudo /etc/init.d/networking restart
 * Reconfiguring network interfaces...                                          eth0: ERROR while getting interface flags: No such device
There is already a pid file /var/run/dhclient.eth0.pid with pid 134519072
Internet Systems Consortium DHCP Client V3.0.6
Copyright 2004-2007 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

SIOCSIFADDR: No such device
eth0: ERROR while getting interface flags: No such device
eth0: ERROR while getting interface flags: No such device
Bind socket to interface: No such device
Failed to bring up eth0.

interfaces文件

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet dhcp
~                                                                               
~                               

偶然执行了一下ifconfig -a，发现有个eth2...还有物理地址在
于是修改interfaces文件中的eth0为eth2
重启网络，done...