On Fri, 17 Nov 2000, Gregory Hosler wrote:
> I _used_ to be able to mount a iso file from NFS to loopback. I can do this
> under RH 5.2 running kernel 2.0.36
>
> I am pretty sure (but not positive) that it used to work under rh 6.2
> (kernel  2.2.14-6.1.1).
>
> under RH 7.0 (kernel 2.2.16-22) I can no longer mount loopback from NFS.
>
> _this_ used to work.
>
> so... is this (i.e. the inability to mount a loopback file from NFS) a new
> bug, or a new feature ?

There was a major rewrite of the Linux nfs implementation between 2.0.x
and 2.2.x. I don't remember the specifics, but I remember there being
something about the inode mapping which causes all sorts of behavior like
this.

IMHO, not being able to loopback mount an ISO image over NFS is probably a
good idea. NFS is not really a great protocol, and it is probably much
more efficient to get the NFS server to loopback mount the iso image and
then export it rather than serve the whole image as a file and have the
client loopback mount it.

thornton



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