Re: remounting nfs dir on loop device

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----- Original Message -----
From: "Cameron Simpson" <cs@xxxxxxxxxx>

> |
> | Is there a way to read the files without first making the local
> | copy on computer b?  I would prefer to do it on computer b if
> | possible.
> |
> | If (on computer b) I try to
> |
> |  mount -vv -t iso9660 /mnt/disc1.iso  /mnt/dummy -o loop
> |
> | I get a message:
> | mount: going to use the loop device /dev/loop1
> | mount: /mnt/disc1.iso: Permission denied
> | mount: failed setting up loop device
> |
> | The permission on /mnt/disc1 is 644 and I am root.
> |
> | I don't know whether this is supposed to work or not.
> | Can someone tell me?
>
> I'm pretty sure a loop device needs a real local file to back it.
> NFS isn't up to it (it's a stateless view of a filesystem, not much
good
> for an OS layer that needs timely and reliable block I/O to a file
> as backing store).
>
> Have you considered doing the loopback mount on the remote system and
> exporting _that_ over NFS? That will work fine. In fact, we do that
> here.

Thanks Cameron.
Yes, that works fine.  I guess that's the answer.  I was just trying to
minimize
the no. of files on  the remote system, and didn't understand the
"permission
denied" error.  I haven't found much info about this online yet.

John



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