Hi Klaus, here is how I deal with it in my %pre script: # Turn off IPV6 # # In /etc/sysconfig/network echo "NETWORKING_IPV6=no" >> /mnt/sysimage/etc/sysconfig/network # In /etc/sysconfig/network-scripts/ifcfg-eth0 echo "IPV6INIT=no" >> /mnt/sysimage/etc/sysconfig/network-scripts/ifcfg-eth0 echo "IPV6INIT=no" >> /mnt/sysimage/etc/sysconfig/network-scripts/ifcfg-eth1 # And because the above doesn't work because of a bug, we force it in # /etc/modprobe.conf as well. echo "alias net-pf-10 off" >> /mnt/sysimage/etc/modprobe.conf As noted in the comments, there is a bug in the networking scripts: 1) IPv6 shouldn't be turned on by default in the first place, 2) the options to turn off IPv6 explicitly are ignored. The addition to modprobe.conf is actually what works. It requires a reboot to take effect, since, as you noted, you can't remove the modules once they are in use. Cheers, Christian _________________ Christian Rohrmeier Schering AG Corporate IT - Infrastructure and Services Computer Systems and Operations System Administration - Research and Development Tel +49 30 468 15794 Fax +49 30 468 95794 Klaus Steden <klaus.steden@tho mson.net> To Sent by: Discussion list about Kickstart kickstart-list-bo <kickstart-list@xxxxxxxxxx> unces@xxxxxxxxxx cc Subject 27.09.2005 05:53 switching off IPv6? Please respond to Discussion list about Kickstart <kickstart-list@r edhat.com> Is there a quick way to switch -off- IPv6 in Kickstart? By the time I've got a system fully configured, it gets loaded by default and marked as 'in use' if I try to rmmod (I assume simply adding an IPv6 address to a NIC makes it so?). Any suggestions are welcome. Klaus _______________________________________________ Kickstart-list mailing list Kickstart-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/kickstart-list