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<H1>[Mageia-dev] Any progress on the NFS mount problem? - SOLVED</H1>
<B>Anne Wilson</B>
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TITLE="[Mageia-dev] Any progress on the NFS mount problem? - SOLVED">annew at kde.org
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<I>Tue Oct 2 09:46:47 CEST 2012</I>
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<PRE>-----BEGIN PGP SIGNED MESSAGE-----
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On 02/10/12 02:31, Colin Guthrie wrote:
><i> 'Twas brillig, and Guillaume Rousse at 01/10/12 21:41 did gyre and
</I>><i> gimble:
</I>>><i> With NFSv4, the server remaps its actual filesystem (/home, for
</I>>><i> instance) in a pseudo-filesystem, which is seen by clients as a
</I>>><i> root filesystem (/ here). Consider it as some kind of implicit
</I>>><i> chroot.
</I>>><i>
</I>>><i> With earlier implementations, you had to explicitely mark one of
</I>>><i> the filesystem as the root one, and make sure every other
</I>>><i> filesystem was reachable from it, using bind mount if needed.
</I>>><i> You've got some more detailed explanations here:
</I>>><i> <A HREF="https://wiki.archlinux.org/index.php/NFS">https://wiki.archlinux.org/index.php/NFS</A>
</I>>><i>
</I>>><i> According to official NFS wiki, it seems this is no longer
</I>>><i> needed, and than the implementation handle it automagically for
</I>>><i> you:
</I>>><i> <A HREF="http://wiki.linux-nfs.org/wiki/index.php/Nfsv4_configuration#Exporting_directories">http://wiki.linux-nfs.org/wiki/index.php/Nfsv4_configuration#Exporting_directories</A>
</I>>><i>
</I>>><i>
</I>>>><i>
</I>>><i>
</I>>><i>
</I>I removed 'fsid=0', restarted, and all is well. I
>>><i> can see all my data!
</I>>><i> Well, you'd better check if you're actually using NFSv4, and not
</I>>><i> a older version, if you want optimal performances.
</I>><i>
</I>><i> FWIW, I found I needed fsid=0 on my media center's chroot export
</I>><i> when using an NFS root boot (server + client both mga2).
</I>><i>
</I>><i> Without fsid=0 root was mapped to 65534 which caused numerous
</I>><i> issues when booting :)
</I>><i>
</I>><i> Never did work out the full reasons, so I probably need to read
</I>><i> those specs a bit.
</I>><i>
</I>Hmm - haven't tried rebooting since I got it going last thing
yesterday. Perhaps the trick is to make another mount with fsid=0?
I'll play with this and your other suggestion in a day or two, when
I've got over the novelty of having things working again :-D
Strange, though, that things were so different in CentOS and
Scientific Linux, both of which claimed to be using nfs4. That's what
caused my confusion.
Anne
- --
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