[CentOS] MAC address changes after cloning

[Brian Mathis]

The MAC address shown in the /etc/sysconfig/network/ifcfg-ethX files is just
the address of what was detected at the time of installation.  This is done
to make sure the configuration is applied to the correct NIC.  It does not
auto-generate every time you reboot the system.

You will need to manually change that to the MAC address displayed by
ifconfig, and add that to the list of things you need to update after
cloning a system.


On Wed, Jun 9, 2010 at 8:03 AM, <premrajm at digilink.in> wrote:

>
> Hi,
>
> I have x86 system and have used *clonezilla* to clone the entire hardisk
> of system A and restored it on another x86 system, system B.
> After the cloning process, i notice that the MAC address of the system B in
> the /etc/sysconfig/network-scripts/ifcfg-eth0 is changed and
> is having the MAC address of system A.
>
> The interesting part is that if i do an *ifconfig *from the bash prompt,
> the MAC address of the system B is correctly displayed, but
> in ifcfg-eth0 script it is different. I had disabled kudzu, since i was
> always getting eth1 activated on System B,
> even though i had used eth0 on system A. eth0.bak was getting created
> instead on system B. Disabling kudzu resolved it.
>
> My question is that how could i get the same MAC address for system B from
> ifconfig and in
> /etc/sysconfig/network-scripts/ifcfg-eth0. Is there any script to do it ?
>
> Thanks and Regards | Premraj  M | Sr.Engineer - Hardware | Tel: +91
> 080-67274900 | Cell: +91 9741231739 | Email: premrajm at digilink.in
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