====================== Failed to start LSB: Bring up/down
networking. =====================
Failed to start LSB: Bring up/down
networking.解决方法
systemctl status network ： network.service -
LSB: Bring up/down networking
0、IP地址重复，多见于多个网卡，配置相同IP
1、dhcp 和静态ip混用
BOOTPROTO有 dhcp 或 none两种情况
BOOTPROTO=static
改为
BOOTPROTO=none
dhcp和静态ip配置混用容易出问题，用一种调试问题。
2、ifcfg文件混乱和过多
3、NetworkManager 影响
4、LINUX 7 ,HWADDR 并不需要配置UUID还是需要
##HWADDR=00:0c:29:37:42:e1
=========================
dhcp =========================
BOOTPROTO=dhcp
TYPE=Ethernet
DEFROUTE=yes
NAME=eno16777736
UUID=10d2b664-6254-4e95-973b-41df7d72b11c
DEVICE=eno16777736
ONBOOT=yes
PEERDNS=yes
PEERROUTES=yes
IPV4INIT=yes
IPV6INIT=no
GATEWAY=192.168.1.99
=========================
dhcp =========================
========================= static
=========================
IPADDR=192.168.1.113
NETMASK=255.255.255.0
BOOTPROTO=none
TYPE=Ethernet
DEFROUTE=yes
NAME=eno16777736
UUID=10d2b664-6254-4e95-973b-41df7d72b11c
DEVICE=eno16777736
ONBOOT=yes
PEERDNS=yes
PEERROUTES=yes
IPV4INIT=yes
IPV6INIT=no
GATEWAY=192.168.1.99
##HWADDR=00:0c:29:37:42:e1
========================= static
=========================
ip link set dev eno16777736 down
ip link set dev eno16777736 up
ip link set dev ens37 down
ip link set dev ens37 up
====================== disable NetworkManager
. =====================
systemctl disable NetworkManager
systemctl status NetworkManager
[root@vm701 network-scripts]# systemctl status
NetworkManager
* NetworkManager.service - Network Manager
Loaded: loaded
(/usr/lib/systemd/system/NetworkManager.service; disabled; vendor
preset: enabled)
Active: inactive
(dead)
======================ifcfg文件太多，坑爹==============================================
删、删、删
[root@vm701 Desktop]# systemctl status network
* network.service - LSB: Bring up/down networking
Loaded: loaded
(/etc/rc.d/init.d/network; bad; vendor preset: disabled)
Active: failed (Result:
exit-code) since Mon 2019-06-24 14:11:24 CST; 54s ago
Docs:
man:systemd-sysv-generator(8)
Process: 909
ExecStart=/etc/rc.d/init.d/network start (code=exited,
status=1/FAILURE)
Memory: 1.5M
Jun 24 14:11:23 vm701 network[909]: Bringing up interface
ens37..dhcp: ERR...n.
Jun 24 14:11:23 vm701
/etc/sysconfig/network-scripts/ifup-eth[1423]: Device e...
Jun 24 14:11:23 vm701 network[909]: [FAILED]
Jun 24 14:11:24 vm701 network[909]: Bringing up interface
ens37.static: ER...n.
Jun 24 14:11:24 vm701
/etc/sysconfig/network-scripts/ifup-eth[1458]: Device e...
Jun 24 14:11:24 vm701 network[909]: [FAILED]
Jun 24 14:11:24 vm701 systemd[1]: network.service: control
process exited, ...=1
Jun 24 14:11:24 vm701 systemd[1]: Failed to start LSB: Bring
up/down networking.
Jun 24 14:11:24 vm701 systemd[1]: Unit network.service entered
failed state.
Jun 24 14:11:24 vm701 systemd[1]: network.service
failed.
Hint: Some lines were ellipsized, use -l to show in
full.
[root@vm701 Desktop]#
[root@vm701 network-scripts]# ll ifc*
-rw-r--r-- 1 root root 273 Jun 24 14:07
ifcfg-eno16777736
-rw-r--r-- 1 root root 204 Dec 30 10:48
ifcfg-eno16777736.bak
-rw-r--r--. 1 root root 204 Aug 11 2018
ifcfg-eno16777736-move
-rw-r--r-- 1 root root 249 Jun 24 13:35
ifcfg-eno16777736..sta
-rw-r--r-- 1 root root 263 Jun 24 14:04
ifcfg-ens37
-rw-r--r-- 1 root root 222 Jun 24 11:55
ifcfg-ens37-dhcp
-rw-r--r-- 1 root root 222 Jun 24 13:21
ifcfg-ens37..dhcp
-rw-r--r-- 1 root root 283 Jun 24 12:30
ifcfg-ens37.static
-rw-r--r--. 1 root root 254 Sep 16 2015
ifcfg-lo
......... remove
file
[root@vm701 network-scripts]# rm ifcfg-ens37-dhcp
rm: remove regular file 'ifcfg-ens37-dhcp'? y
[root@vm701 network-scripts]# mv
[root@vm701 network-scripts]# rm ifcfg-ens37.static
======================ifcfg文件太多，坑爹==============================================
[root@vm701 network-scripts]#
[root@vm701 network-scripts]# systemctl status network
* network.service - LSB: Bring up/down networking
Loaded: loaded
(/etc/rc.d/init.d/network; bad; vendor preset: disabled)
Active: failed (Result:
exit-code) since Mon 2019-06-24 14:11:24 CST; 4min 14s ago
Docs:
man:systemd-sysv-generator(8)
Process: 909
ExecStart=/etc/rc.d/init.d/network start (code=exited,
status=1/FAILURE)
Memory: 884.0K
Jun 24 14:11:23 vm701 network[909]: Bringing up interface
ens37..dhcp: ERROR
: [/etc/sysconfig/network-scripts/ifup-eth]
Devi...ization.
Jun 24 14:11:23 vm701
/etc/sysconfig/network-scripts/ifup-eth[1423]: Device ens37 does
not seem to be present, delaying initialization.
Jun 24 14:11:23 vm701 network[909]: [FAILED]
Jun 24 14:11:24 vm701 network[909]: Bringing up interface
ens37.static: ERROR
: [/etc/sysconfig/network-scripts/ifup-eth]
Dev...ization.
Jun 24 14:11:24 vm701
/etc/sysconfig/network-scripts/ifup-eth[1458]: Device ens37 does
not seem to be present, delaying initialization.
Jun 24 14:11:24 vm701 network[909]: [FAILED]
Jun 24 14:11:24 vm701 systemd[1]: network.service: control
process exited, code=exited status=1
Jun 24 14:11:24 vm701 systemd[1]: Failed to start LSB: Bring
up/down networking.
Jun 24 14:11:24 vm701 systemd[1]: Unit network.service entered
failed state.
Jun 24 14:11:24 vm701 systemd[1]: network.service
failed.
Hint: Some lines were ellipsized, use -l to show in
full.
[root@vm701 network-scripts]#
[root@vm701 network-scripts]# ll *ifc*
-rw-r--r-- 1 root root 273 Jun 24 14:07
00-ifcfg-eno16777736..sta
-rw-r--r-- 1 root root 263 Jun 24 14:04
00-ifcfg-ens37
-rw-r--r-- 1 root root 222 Jun 24 13:21
00-ifcfg-ens37..dhcp
-rw-r--r-- 1 root root 283 Jun 24 12:30
00-ifcfg-ens37.static
-rw-r--r-- 1 root root 273 Jun 24 14:24
ifcfg-eno16777736
-rw-r--r--. 1 root root 254 Sep 16 2015
ifcfg-lo
[root@vm701 network-scripts]# ll ifc*
-rw-r--r-- 1 root root 273 Jun 24 14:24
ifcfg-eno16777736
-rw-r--r--. 1 root root 254 Sep 16 2015
ifcfg-lo
[root@vm701 network-scripts]# cat ifcfg-eno16777736
BOOTPROTO=none
##HWADDR=00:0c:29:37:42:e1
IPADDR=192.168.1.112
NETMASK=255.255.255.0
TYPE=Ethernet
DEFROUTE=yes
NAME=eno16777736
UUID=10d2b664-6254-4e95-973b-41df7d72b11c
DEVICE=eno16777736
ONBOOT=yes
PEERDNS=yes
PEERROUTES=yes
IPV4INIT=yes
IPV6INIT=no
GATEWAY=192.168.1.1
[root@vm701 network-scripts]# systemctl
start network
[root@vm701 network-scripts]#
[root@vm701 network-scripts]#
[root@vm701 network-scripts]#
[root@vm701 network-scripts]# systemctl
status network
* network.service - LSB: Bring up/down networking
Loaded: loaded
(/etc/rc.d/init.d/network; bad; vendor preset: disabled)
Active: active (exited)
since Mon 2019-06-24 14:25:47 CST; 3min 10s ago
Docs:
man:systemd-sysv-generator(8)
Process: 6276
ExecStart=/etc/rc.d/init.d/network start (code=exited,
status=0/SUCCESS)
Memory: 0B
Jun 24 14:25:47 vm701 network[6276]: RTNETLINK answers: File
exists
Jun 24 14:25:47 vm701 network[6276]: RTNETLINK answers: File
exists
Jun 24 14:25:47 vm701 network[6276]: RTNETLINK answers: File
exists
Jun 24 14:25:47 vm701 network[6276]: RTNETLINK answers: File
exists
Jun 24 14:25:47 vm701 network[6276]: RTNETLINK answers: File
exists
Jun 24 14:25:47 vm701 network[6276]: RTNETLINK answers: File
exists
Jun 24 14:25:47 vm701 network[6276]: RTNETLINK answers: File
exists
Jun 24 14:25:47 vm701 network[6276]: RTNETLINK answers: File
exists
Jun 24 14:25:47 vm701 network[6276]: RTNETLINK answers: File
exists
Jun 24 14:25:47 vm701 systemd[1]: Started LSB: Bring up/down
networking.
[root@vm701 network-scripts]#
============================= 清除 已经加载的IP地址
==========================================
避免重启，快速维护
[root@vm701 network-scripts]# ip -4 a flush
dev eno16777736
[root@vm701 network-scripts]#
[root@vm701 network-scripts]# ip a
1: lo: mtu 65536 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
valid_lft forever preferred_lft forever
inet6 ::1/128 scope
host
valid_lft forever preferred_lft forever
2: eno16777736: mtu 1500 qdisc pfifo_fast state UP qlen
1000
link/ether
00:0c:29:37:42:e1 brd ff:ff:ff:ff:ff:ff
inet6
fe80::20c:29ff:fe37:42e1/64 scope link
valid_lft forever preferred_lft forever
3: virbr0: mtu 1500 qdisc noqueue state
DOWN
link/ether
52:54:00:94:76:0f brd ff:ff:ff:ff:ff:ff
inet 192.168.122.1/24
brd 192.168.122.255 scope global virbr0
valid_lft forever preferred_lft forever
4: virbr0-nic: mtu 1500 qdisc pfifo_fast master virbr0 state
DOWN qlen 500
link/ether
52:54:00:94:76:0f brd ff:ff:ff:ff:ff:ff
5: docker0: mtu 1500 qdisc noqueue state
DOWN
link/ether
02:42:8a:82:15:70 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 scope
global docker0
valid_lft forever preferred_lft forever
[root@vm701 network-scripts]#
[root@vm701 network-scripts]#
============================= 清除 已经加载的IP地址
==========================================
============================= 增加一个eth设备
==========================================
[root@vm703 network-scripts]# ll ifc*
-rw-r--r--. 1 root root 303 8 11 2018
ifc-eno16777736
-rw-r--r-- 1 root root 253
6 24 13:55 ifcfg-ens33
-rw-r--r--. 1 root root 254 9 16 2015
ifcfg-lo
[root@vm703 network-scripts]# cp ifcfg-ens33 ifcfg-ens37
[root@vm703 network-scripts]# ll ifc*
-rw-r--r--. 1 root root 303 8 11 2018
ifc-eno16777736
-rw-r--r-- 1 root root 253
6 24 13:55 ifcfg-ens33
-rw-r--r-- 1 root root 253
6 24 18:22 ifcfg-ens37
-rw-r--r--. 1 root root 254 9 16 2015
ifcfg-lo
[root@vm703 network-scripts]# vi ifcfg-ens37
[root@vm703 network-scripts]#
[root@vm703 network-scripts]#
======== 一个设备 ens33
[root@vm703 network-scripts]#
[root@vm703 network-scripts]# systemctl status network
* network.service - LSB: Bring up/down networking
Loaded: loaded
(/etc/rc.d/init.d/network; bad; vendor preset: disabled)
Active: active (exited)
since һ 2019-06-24 17:56:31 CST; 29min ago
Docs:
man:systemd-sysv-generator(8)
Process: 960
ExecStart=/etc/rc.d/init.d/network start (code=exited,
status=0/SUCCESS)
Memory: 0B
6Ղ 25 01:49:26 vm703 systemd[1]: Starting LSB: Bring up/down
networking...
6Ղ 24 17:56:28 vm703 network[960]: Bringing up loopback
interface: [
OK ]
6Ղ 24 17:56:31 vm703 network[960]: Bringing up interface
ens33: [ OK
]
6Ղ 24 17:56:31 vm703 systemd[1]: Started LSB: Bring up/down
networking.
[root@vm703 network-scripts]#
[root@vm703 network-scripts]#
[root@vm703 network-scripts]# systemctl
restart network
======== 2个设备 ens33、ens37
[root@vm703 network-scripts]# systemctl status network
* network.service - LSB: Bring up/down networking
Loaded: loaded
(/etc/rc.d/init.d/network; bad; vendor preset: disabled)
Active: active (exited)
since һ 2019-06-24 18:26:42 CST; 3s ago
Docs:
man:systemd-sysv-generator(8)
Process: 3436
ExecStop=/etc/rc.d/init.d/network stop (code=exited,
status=0/SUCCESS)
Process: 3612
ExecStart=/etc/rc.d/init.d/network start (code=exited,
status=0/SUCCESS)
6Ղ 24 18:26:37 vm703 systemd[1]: Starting LSB: Bring up/down
networking...
6Ղ 24 18:26:37 vm703 network[3612]: Bringing up loopback
interface: [
OK ]
6Ղ 24 18:26:39 vm703 network[3612]: Bringing up interface
ens33: [ OK
]
6Ղ 24 18:26:42 vm703 network[3612]: Bringing up interface
ens37: [ OK
]
6Ղ 24 18:26:42 vm703 systemd[1]: Started LSB: Bring up/down
networking.
[root@vm703 network-scripts]#
============================= 增加一个eth设备
==========================================
