Shutting down interface eth0: Error: Device 'eth0' (/org/freedesktop/NetworkManager/Devices/0) disc

最新推荐文章于 2023-10-22 22:04:45 发布
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本文记录了在CentOS系统中手动配置IP地址和DNS后遇到的问题及解决过程。通过调整NetworkManager和network服务设置，并正确配置MAC地址，最终解决了网络配置不生效的问题。

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安装CENT OS时手动配置了IP和DNS，安装完成后，IP未生效

[root@localhost network-scripts]# cat ifcfg-eth0
DEVICE=eth0
BOOTPROTO=none
BROADCAST=10.205.1.255
GATEWAY=10.205.0.254
IPADDR=10.205.0.70
NETMASK=255.255.255.0
NM_CONTROLLED=yes
ONBOOT=yes
TYPE=Ethernet
UUID="cbf78fc4-dca7-431f-bacb-66e9fb152dcd"
HWADDR=5A:2D:8A:5F:F7:9C
PREFIX=23
DNS1=211.155.27.88
DEFROUTE=yes
IPV4_FAILURE_FATAL=yes
IPV6INIT=no
NAME="System eth0"
LAST_CONNECT=1417162738


service network restart:

有如下报错

hutting down interface eth0:  Error: Device 'eth0' (/org/freedesktop/NetworkManager/Devices/0) disconnecting failed: This device is not active                                                           [FAILED]
Shutting down interface eth1:  Error: Device 'eth1' (/org/freedesktop/NetworkManager/Devices/1) disconnecting failed: This device is not active                                                           [FAILED]

搜索网上解决方案：

  1. chkconfig NetworkManager off
  2. chkconfig network on
  3.  service NetworkManager stop
  4. Stopping NetworkManager daemon: [ OK ]
  5. service network start
结果报如下错：

Bringing up interface eth0:  Device eth0 has different MAC address than expected, ignoring

再搜解决方案：

#ifconfig eth0 down
#cd /etc/sysconfig/network-scripts 
#vi ifcfg-eth0
修改其中的"HWADDR=xx:xx:xx:xx:xx:xx"为"MACADDR=xx:xx:xx:xx:xx:xx"
#ifconfig eth0 up
#service network start

问题解决，日志如下：
Bringing up loopback interface:  [  OK  ]
Bringing up interface eth0:  RTNETLINK answers: Device or resource busy
[  OK  ]
RTNETLINK answers: File exists
RTNETLINK answers: File exists
RTNETLINK answers: File exists
RTNETLINK answers: File exists
RTNETLINK answers: File exists
RTNETLINK answers: File exists
RTNETLINK answers: File exists
RTNETLINK answers: File exists
RTNETLINK answers: File exists
[root@localhost network-scripts]# ifconfig
eth0      Link encap:Ethernet  HWaddr B6:D7:97:82:7A:26  
          inet addr:10.205.0.70  Bcast:10.205.1.255  Mask:255.255.254.0


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安装CENT OS时手动配置了IP和DNS，安装完成后，IP未生效 [root@localhost network-scripts]# cat ifcfg-eth0 DEVICE=eth0 BOOTPROTO=none BROADCAST=10.205.1.255 GATEWAY=10.205.0.254 IPADDR=10.205.0.70 NETMASK=255.255.25
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