Public bug reported:
Possibly the bug is in the server. I cannot decide.
This is on 10.04.
After a reboot NFS clients can no longer mount NFS shares. For instance:
mount -v nfs:/cosine /mnt/
mount: no type was given - I'll assume nfs because of the colon
mount.nfs: timeout set for Wed Jan 4 15:37:15 2012
mount.nfs: text-based options: 'addr=192.168.1.11'
mount.nfs: mount(2): Protocol not supported
mount.nfs: trying 192.168.1.11 prog 100003 vers 3 prot UDP port 2049
mount.nfs: trying 192.168.1.11 prog 100005 vers 3 prot UDP port 39863
mount.nfs: mount to NFS server 'nfs:/cosine' failed: RPC Error: Success
Because if this clients with entries in /etc/fstab or that make use of
autofs are just stranded without their disk partitions.
If I give nfsvers=2, as below, the mount succeeds, but I cannot use NFS
version 2:
mount -v -o nfsvers=2 nfs:/cosine /mnt/
mount: no type was given - I'll assume nfs because of the colon
mount.nfs: timeout set for Wed Jan 4 15:37:50 2012
mount.nfs: text-based options: 'nfsvers=2,addr=192.168.1.11'
nfs:/cosine on /mnt type nfs (rw,nfsvers=2)
I have clients on 11.10, they can mount but they seem to negotiate a
lower NFS version:
mount -v nfs:/cosine /mnt
mount: no type was given - I'll assume nfs because of the colon
mount.nfs: timeout set for Wed Jan 4 15:40:32 2012
mount.nfs: trying text-based options
'vers=4,addr=192.168.1.11,clientaddr=192.168.1.2'
mount.nfs: mount(2): No such file or directory
mount.nfs: trying text-based options 'addr=192.168.1.11'
mount.nfs: prog 100003, trying vers=3, prot=6
mount.nfs: trying 192.168.1.11 prog 100003 vers 3 prot TCP port 2049
mount.nfs: prog 100005, trying vers=3, prot=17
mount.nfs: trying 192.168.1.11 prog 100005 vers 3 prot UDP port 39863
mount.nfs: portmap query retrying: RPC: Program/version mismatch
mount.nfs: prog 100005, trying vers=3, prot=6
mount.nfs: trying 192.168.1.11 prog 100005 vers 3 prot TCP port 45556
mount.nfs: portmap query failed: RPC: Program/version mismatch
mount.nfs: prog 100003, trying vers=2, prot=6
mount.nfs: trying 192.168.1.11 prog 100003 vers 2 prot TCP port 2049
mount.nfs: prog 100005, trying vers=1, prot=17
mount.nfs: trying 192.168.1.11 prog 100005 vers 1 prot UDP port 39863
nfs:/cosine on /mnt type nfs (rw)
While in the latter case the machine is at least usable (but I have
problems with ACLs), in the former it is broken
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: nfs-kernel-server 1:1.2.0-4ubuntu4.2
ProcVersionSignature: Ubuntu 2.6.32-37.81-generic-pae 2.6.32.49+drm33.21
Uname: Linux 2.6.32-37-generic-pae i686
Architecture: i386
Date: Wed Jan 4 15:30:49 2012
ProcEnviron:
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: nfs-utils
** Affects: nfs-utils (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
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https://bugs.launchpad.net/bugs/911796
Title:
NFS clients can no longer mount shares
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