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Byte Commander
Asked: 2016-08-11 13:18:43 +0800 CST

network.service 拒绝在启动时启动（无法启动 lo，文件存在）

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由于我尝试设置加密交换分区（加密交换分区未显示在 /dev/mapper 中），因此在启动过程中出现networking.service无法启动的错误。

这是我在运行错误消息中描述的命令时得到的信息：

$ systemctl status networking.service 
● networking.service - Raise network interfaces
   Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
  Drop-In: /run/systemd/generator/networking.service.d
           └─50-insserv.conf-$network.conf
   Active: failed (Result: exit-code) since Mi 2016-08-10 22:57:45 CEST; 10min ago
     Docs: man:interfaces(5)
  Process: 4424 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=1/FAILURE)
  Process: 4417 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=l
 Main PID: 4424 (code=exited, status=1/FAILURE)

Aug 10 22:57:45 BC-AlkaliMetal systemd[1]: Starting Raise network interfaces...
Aug 10 22:57:45 BC-AlkaliMetal ifup[4424]: RTNETLINK answers: File exists
Aug 10 22:57:45 BC-AlkaliMetal ifup[4424]: Failed to bring up lo.
Aug 10 22:57:45 BC-AlkaliMetal systemd[1]: networking.service: Main process exited, code=exited, status=1/FAILURE
Aug 10 22:57:45 BC-AlkaliMetal systemd[1]: Failed to start Raise network interfaces.
Aug 10 22:57:45 BC-AlkaliMetal systemd[1]: networking.service: Unit entered failed state.
Aug 10 22:57:45 BC-AlkaliMetal systemd[1]: networking.service: Failed with result 'exit-code'.

感谢@Rinzwind，这个问题可以通过刷新设备暂时lo解决：

bytecommander@BC-AlkaliMetal:~$ sudo ip addr flush dev lo
bytecommander@BC-AlkaliMetal:~$ sudo service networking start
bytecommander@BC-AlkaliMetal:~$ systemctl status networking.service 
● networking.service - Raise network interfaces
   Loaded: loaded (/lib/systemd/system/networking.service; enabled; vendor preset: enabled)
  Drop-In: /run/systemd/generator/networking.service.d
           └─50-insserv.conf-$network.conf
   Active: active (exited) since Mi 2016-08-10 22:55:06 CEST; 5s ago
     Docs: man:interfaces(5)
  Process: 9057 ExecStart=/sbin/ifup -a --read-environment (code=exited, status=0/SUCCESS)
  Process: 9052 ExecStartPre=/bin/sh -c [ "$CONFIGURE_INTERFACES" != "no" ] && [ -n "$(ifquery --read-environment --list --exclude=l
 Main PID: 9057 (code=exited, status=0/SUCCESS)
   CGroup: /system.slice/networking.service

Aug 10 22:55:06 BC-AlkaliMetal systemd[1]: Starting Raise network interfaces...
Aug 10 22:55:06 BC-AlkaliMetal systemd[1]: Started Raise network interfaces.

不过，在下一次重新启动期间，我再次遇到同样的问题。

这是我的/etc/network/interfaces配置文件：

# interfaces(5) file used by ifup(8) and ifdown(8)
iface lo inet static
   address 127.0.0.1
   netmask 255.0.0.0

这里有什么问题以及如何解决？

networking

1 个回答

  1. Best Answer

    环回接口配置不正确/etc/network/inerfaces：

    iface lo inet static
    address 127.0.0.1
    netmask 255.0.0.0

    环回接口 ( lo) 被认为是系统的“特殊”接口，因此需要对其进行分类。为了促进这一点，应删除对环回接口的任何引用并替换为默认值：

    auto lo
iface lo inet loopback

    进行此更改后重新启动networking服务应该允许系统正确抓取它并修复显示错误lo。

    • 5

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