[CentOS] webmin and DNS configuration on CentOS 6.2

Hello listmates,

I have two seemingly identical (in this reglard, at least) machine - both of them are running CentOS 6.2 with bind (bind-chroot) installed. I used webmin to edit the DNS configuration. One one of them it seems to work fine, on the other I get messages akin to the following:

Failed to create master zone : Failed to replace /var/named/chroot/etc/named.conf with /var/named/chroot/etc/named.conf.webmintmp.13214 : Device or resource busy

From what I can tell, the file

/var/named/chroot/etc/named.conf.webmintmp.13214 never even gets created to begin with.

Has anyone experienced that? Does anyone know what the issue is?

Thanks.

Boris.