3.10-rc3 NFSv3 mount issues
From: Jim Schutt
Date: Thu May 30 2013 - 16:19:59 EST
Hi,
I've been trying to test 3.10-rc3 on some diskless clients, and found
that I can no longer mount my root file system via NFSv3.
I poked around looking at NFS changes for 3.10, and found these two
commits:
d497ab9751 "NFSv3: match sec= flavor against server list"
4580a92d44 "NFS: Use server-recommended security flavor by default (NFSv3)"
If I revert both of these commits from 3.10-rc3, then my diskless
client can mount its root file system.
The busybox mount command fails like this, when using 3.10-rc3:
/ # mount -t nfs -o ro,nolock,vers=3,proto=tcp 172.17.0.122:/gmi/images/jaschut/ceph.toss-2x /mnt
mount: mounting 172.17.0.122:/gmi/images/jaschut/ceph.toss-2x on /mnt failed: Invalid argument
The commit messages for both these commits seem to say that mounting
with the "sys=sec" option should work, but unfortunately, my busybox doesn't
seem to understand the "sec=" mount option:
/ # mount -t nfs -o ro,nolock,vers=3,proto=tcp,sec=sys 172.17.0.122:/gmi/images/jaschut/ceph.toss-2x /mnt
mount: invalid number 'sys'
My NFS server is based on RHEL6, and is not using any "sec=" option
in its export for this file system. I did try exporting with "sec=sys",
but it didn't seem to make any difference either.
So far, this seems like a regression to me ....
Any ideas what I might be doing wrong? How can I
help make this work again?
Thanks -- Jim
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