I know it is a condition of hard links that they cannot span filesystems. Does this apply to NFS mounts? Given the following directory structure, would I be able to create a hard link in directory A that points to a file in directory B?
/root
/A
/B <-NFS mount
For example, I'd like to run " ln /root/b/file.txt /root/a/linkedfile.txt "
Hard links cannot span partitions or drives, so I would assume this would also be the case with NFS mounts.
Using soft-links instead should work with an NFS mount. I think it should work the same as soft linking between two separate partitions or physical drives.
Well, since /B is a separate file system (a mounted NFS file system) you cannot make a hard link between it and /A, because they are not on the same file system.
Its because a hardlink doesn't make a copy of the data put only a copy of the pointer to that data, so they have to be in the same "address space".