Linux DNS 服务，配置文件系统找不到，为什么？

zcsgamer

****/etc/named/chroot/etc/named.conf

options
{
  directory "/var/named";
};

zone "abc.org"
{
  type master;
  file "abc.org.hosts";
};

zone "0.168.192.in-addr.arpa"
{
  type master;
  file "192.168.1.rev";
};


****/etc/named/chroot/etc/named/abc.org.hosts

$TTL 86400
@ IN SOA linux.abc.org root.linux.abc.org
(
  2001101100;
  10800;
  3600;
  604800;
  0
);

IN NS dns.abc.org
IN MS 5 linux.abc.org
IN A 192.168.0.1
www IN CNAME linux.abc.org.


****/etc/named/chroot/etc/named/192.168.0.rev

$TTL 86400
@ IN SOA linux.abc.org root.linux.abc.org
(
  2001101100;
  10800;
  3600;
  604800;
  0
);

IN NS dns.abc.org
1 IN PTR dns.abc.org


执行 service named start ，反应是

Starting named:
Error in named configuration:
zone abc.org/IN: loading master file abc.org.hosts: file not found
_default/abc.org/IN: file not found
zone 0.168.192.in-addr.arpa/IN: loading master file 192.168.1.rev: file not found
_default/0.168.192.in-addr.arpa/IN: file not found
[FAILED]

什么原因？