in no file neither in /etc/named.conf nor in any other file that is included by the main config I can find a reference to /etc/named.root.key
is this file really needed or did it become obsolete? (as seen on the URL above, /etc/named.root.key is part of /etc/named.iscdlv.key)
# cat /etc/rc.d/init.d/named ... ROOTDIR_MOUNT='/etc/named /etc/pki/dnssec-keys /var/named /etc/named.conf /etc/named.dnssec.keys /etc/named.rfc1912.zones /etc/rndc.conf /etc/rndc.key /usr/lib64/bind /usr/lib/bind /etc/named.iscdlv.key /etc/named.root.key'
mount_chroot_conf() ...
# rpm -qf /etc/named.root.key /etc/named.iscdlv.key bind-9.8.2-0.37.rc1.el6_7.7.x86_64 bind-9.8.2-0.37.rc1.el6_7.7.x86_64