[Bug 891825] Re: NFS client doesn't mount or mounts slow on startup on 11.10

[Robert Maynord]

I have this exact same problem.  I have been experimenting with
solutions for about a month now, with no success. Here are a few
thoughts...

_11.10 clients on a 11.04 server running nfs4 DO have the problem. (11.04 clients are OK).
_I built a 11.10 server running nfs4 as a test. The problem persists.
_Clients on 11.10 nfs4 systems will NOT boot if nfsvers=3 is inserted into the fstab.
_As a test, I shut down my LAN firewall.  No change. 
_bootwait in fstab helps the boot problem, but introduces another problem:  if more than one client tries to boot at the same time they both freeze. 

If adding nfsvers=3 to fstab solves the problem, then wouldn't it be
logical to assume there is a bug with NFS4?  The question would then be:
is it an Ubuntu problem, or a NFS problem?  In other words, would a
different distro behave the same?

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https://bugs.launchpad.net/bugs/891825

Title:
  NFS client doesn't mount or mounts slow on startup on 11.10

Status in “nfs-utils” package in Ubuntu:
  Incomplete

Bug description:
  Here is the problem. I have a ubuntu server 10.04 and installed nfs-server.
  Every client I had till 11.10, would mount the folders at startup. Here is my fstab on Ubuntu 11.10 client:

  ubuntuserver:/media/huge /media/huge nfs rsize=16384,wsize=16384,rw,auto,nolock
  ubuntuserver:/media/externi-disk /media/externi-disk nfs rsize=16384,wsize=16384,rw,auto,nolock

  I have to wait for a minute till these directories get mounted. I have not changed any setup on 10.04 server, the previous 11.04 mounted the disks out of the box.
  The problem is that I have lot of setup files on my server, for example I have a link to pidgin, thunderbird etc. and on startup these programs can't get to their data. Network rises up fast on startup so that shouldn't be a problem.

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