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VMware升级到9后顺便更新了下Virtual Machine，再次启动Centos6虚拟机后不能启动网络，提示以下错误：

device "eth0" does not seem to be present, delaying initialization

原因是Centos6使用udev动态管理设备文件将MAC地址和网卡名称对应记录在udev的规则脚本中，VMware升级后虚拟机网卡MAC会改变，这样系统会认为网卡是新增的并命名为eth1，查看如下：

ip add
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN qlen 1000
    link/ether 00:0c:29:ce:c0:1e brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.13/24 brd 192.168.1.255 scope global eth1
    inet6 fe80::20c:29ff:fece:c01e/64 scope link 

解决方法1，修改网络配置文件设备eth0为eth1：

cat /etc/sysconfig/network-scripts/ifcfg-eth0 
DEVICE="eth1"
BOOTPROSTO=static
IPADDR=192.168.1.13
NETMASK=255.255.255.0
GATEWAY=192.168.1.1
ONBOOT="yes"

解决方法2，修改udev记录的mac与网卡名称对应规则：

cat /etc/udev/rules.d/70-persistent-net.rules 
# PCI device 0x1022:0x2000 (pcnet32)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="00:0c:29:ce:c0:1e", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"