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How to fix “device eth* does not seem to be present” after migrating Virtual Server

Last updated on March 13, 2019

Fix “device eth* does not seem to be present” after migrating Virtual Server

Check network:

$ ifconfig

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

Try to start Eth0 device

$ ifup eth0
Device eth0 does not seem to be present, delaying initialisation

To Solve this :

Delete networking interface rules file so that it can be regenerated and reboot your CentOS system.

$ rm /etc/udev/rules.d/70-persistent-net.rules
$ reboot

New Mac address has been generated:

This file was automatically generated by the /lib/udev/write_net_rules
program, run by the persistent-net-generator.rules rules file.

You can modify it, as long as you keep each rule on a single
line, and change only the value of the NAME= key.
PCI device 0x8086:0x100e (e1000)
SUBSYSTEM==”net”, ACTION==”add”, DRIVERS==”?*”, ATTR{address}==”08:00:27:fe:c1:03″, ATTR{type}==”1″, KERNEL==”eth*”, NAME=”eth0″

Now edit /etc/sysconfig/network-scripts/ifcfg-eth*,
Add new HWADDR generated or remove it
Remove UUID line

Restart the networking service

$ service network restart
Shutting down interface eth0: [ OK ]
Shutting down loopback interface: [ OK ]
Bringing up loopback interface: [ OK ]
Bringing up interface eth0: Determining if ip address 192.168.1.99 is already in use for device eth0...
[ OK ]
$ ifconfig
eth0 Link encap:Ethernet HWaddr 08:00:27:FE:C1:03
inet addr:192.168.1.99 Bcast:xxxxxxxx Mask:255.255.255.0
inet6 addr: fe80::a00:27ff:fefe:c103/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:4400 errors:0 dropped:0 overruns:0 frame:0
TX packets:129 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:387597 (378.5 KiB) TX bytes:19567 (19.1 KiB)

Enjoy!

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