We are unable to use the web interface to manage our Celerra.  I created a new certificate using "/nas/sbin/nas_config -ssl" and it created a new certificate but (it turns out) that the root certificate had also expired (the leaf certificate is OK now since it was created).  How can I renew the root certificate (or the entire certificate chain) so that we can log in via the web interface and manage the Celerra?

Thanks