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mount as ro for users, rw for root?

Scott R. Ehrlich wrote:
> Under CentOS/RH 5.2, is it possible to mount a remote (iscsi) 
> filesystem/partition as rw for root, but ro for users?

The time I wanted to do that I mounted the partition rw for root only
and then let root make it available as a ro, local-only NFS export.

(Actually, it was ro for root, too.  But sometimes I would remount it
rw, do stuff, and go back to ro again.  Users always saw ro.)

I wonder if a union fs could do it?  Probably more efficient than NFS,
if it could.


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