I had some problems last week after doing a yum update on a K12 4.2 machine at a school with 60 client machines. All the client specific settings (mouse, display, etc.) were over-written and I had to replace the /etc/dhcpd.conf file with a backup.
Today on another server I'm preparing for a small public school lab, with K12 4.2 loaded, I did a yum update and then noticed that there were problems acquiring IP addresses by other machines on the regular network here. Eth1 on the server is, of course, hooked into that network, so I checked and the /etc/sysconfig/dhcpd file seemes to have been blanked--so I think that the local router and the LTSP server (on eth1) were competing to give out IP addresses and conflicting with each other. When I added DHCPDARGS="eth0" and saved the file, all was good again.
Now, maybe I created the problem somehow, but with my problems last week I wondered if anyone else is having some funny issues after yum update...?
I'm not sure about the lts.conf, the src.rpm for that is on my home server...
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