preventing a dual-mount of an NFS file system

[Marc G. Fournier]

Just curious if there is an option that can be set (I've checked the man 
page, and didn't find one) that would prevent a file system from being 
mounted twise on the same mount point?

For instance, I have /du defined in my /etc/fstab, and want to prevent:

mount /du
mount /du

from working ... the first should, but the second should fail ...


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Marc G. Fournier           Hub.Org Networking Services (http://www.hub.org)
Email: scrappy at hub.org           Yahoo!: yscrappy              ICQ: 7615664