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Re: [LUG] Experiments with NFS



Neil Williams wrote:

I've been toying with NFS and I'm confused on NFS and removable drives:

I don't have any quick answers as I haven't done enough of this
with Linux, but HP-UX and Solaris are the same in this regard.

Stop thinking in terms of mount points and directories.... think
inodes and file handles, and filesystems.

You don't export /export/share (inode XXXX, filesystem 1) you
mount something onto /export/share (i.e. filesystem 2) and
export (inode YYYY, filesystem 2).

Thus you can only share a filesystem after it is mounted, and
you have to unmount to unload CD normally even if it happens by
magic. Export before mount and people see inode XXXX, filesystem
1, which is hopefully an empty directory (oops - I meant inode
list of other inodes).

HP-UX is particularly painful in it's support for CD
filesystems, and I've been known to copy entire CD's to disk
just to avoid having to use their PFS utilities..... 

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