after upgrade to 1871 kernel and iptables 1.3.4-3 I have problems with iptables. Actually I made a localupdate when 1869 and 1871 were in place. I didn't notice that yum proposed to deinstall 1869 and reinstall 1871. I had these messages when overwriting my running kernel: [root@fedora fedora]# less /tmp/yum.log Installing: kernel ####################### [18/70] /var/tmp/rpm-tmp.64393: line 1: 3235 Segmentation fault /usr/sbin/module_upgrade 2.6.15-1.1871_FC5 [snip] Installing: kernel-smp ####################### [25/70] /var/tmp/rpm-tmp.86392: line 1: 3829 Segmentation fault /usr/sbin/module_upgrade 2.6.15-1.1871_FC5smp [snip] Cleanup : pirut ####################### [64/70] Could not parse file '/usr/share/applications/redhat-ekiga.desktop': Failed to open file '/usr/share/applications/redhat-ekiga.desktop': No such file or directory Removing : openh323 ####################### [65/70] Now iptables give these errors: [root@fedora fedora]# service iptables restart Flushing firewall rules: iptables: loop hook 0 pos 0 00000021. iptables: Too many levels of symbolic links iptables: loop hook 0 pos 0 00000021. iptables: Too many levels of symbolic links [FAILED] Setting chains to policy ACCEPT: nat iptables: Invalid argument [FAILED] Unloading iptables modules: Removing netfilter NETLINK layer. [ OK ] Applying iptables firewall rules: ip_tables: (C) 2000-2006 Netfilter Core Team Netfilter messages via NETLINK v0.30. ip_conntrack version 2.4 (8191 buckets, 65528 max) - 232 bytes per conntrack iptables-restore v1.3.4: Can't set policy `POSTROUTING' on `ACCEPT' line 4: Bad built-in chain name [FAILED] Any hint? No changes made at /etc/sysconfig/iptables file. [root@fedora fedora]# rpm -q --changelog iptables|head -20 * Tue Jan 24 2006 Thomas Woerner <twoerner(a)redhat.com&gt; 1.3.4-3 - added important iptables header files to devel package * Fri Dec 09 2005 Jesse Keating <jkeating(a)redhat.com&gt; - rebuilt