On Tue, Jul 31, 2007 at 09:34:25PM -0400, Oliver Gould wrote:
> I think that the mount_union(8) manual needs some better explanation of
> this.  Currently it says:
> 
> 	To enforce filesystem security, the user mounting the filesystem
> 	must be superuser or else have write permission on the
> 	mounted-on directory.  In addition, the vfs.generic.usermount
> 	sysctl(3) variable must be set to 1 to permit file system
> 	mounting by ordinary users.

I agree. But note that this is not union specific, so we should probably
annotate all references to vfs.generic.usermount.

Martin