At Fri, 3 May 2019 18:48:30 +0200 CentOS mailing list centos@centos.org wrote:
Hi,
I have a few identical Dell Optiplex 7010 machines that I want to use for our school's computer room. I tried to clone these installations (like I did before on CentOS 5 and various versions of Slackware), but this time I ran into a problem.
Here's what I did.
Install one computer and zero unused hard disk sectors with dd.
Send the image to a local FTP server using G4L (Ghost4Linux).
Fetch the image on another computer.
Boot the new computer in rescue mode and change the hardcoded
/etc/hostname to a new value.
Let me add that I removed all hardcoded MAC addresses from /etc/sysconfig/ifcfg-em1, which has only very limited information in it.
I think you need to re-code each machine's MAC address into ifcfg-em1.
What else could cause the network to choke on a cloned installation?
Cheers,
Niki