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Bug 152956 - NFS-Mount fails after update to util-linux-2.12a-21
Summary: NFS-Mount fails after update to util-linux-2.12a-21
Alias: None
Product: Fedora
Classification: Fedora
Component: util-linux
Version: 3
Hardware: i386
OS: Linux
Target Milestone: ---
Assignee: Karel Zak
QA Contact: Ben Levenson
: 136592 153762 (view as bug list)
Depends On:
TreeView+ depends on / blocked
Reported: 2005-03-31 11:38 UTC by Frank Wittig
Modified: 2007-11-30 22:11 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2005-04-04 22:50:37 UTC

Attachments (Terms of Use)
Patch that fixes nfs mounts to rollback correctly (deleted)
2005-03-31 22:04 UTC, Steve Dickson
no flags Details | Diff

Description Frank Wittig 2005-03-31 11:38:30 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.6) Gecko/20050323 Firefox/1.0.2 Fedora/1.0.2-1.3.1

Description of problem:
After updating util-linux to version util-linux-2.12a-21 on the clients mounting NFS-shares from the server (rh7.2) fails with following output:

Mar 31 12:34:10 scheitan automount[5696]: mount(nfs): nfs: mount failure gargantua:/mnt/md0/home on /automount/home
Mar 31 12:34:10 scheitan automount[5696]: failed to mount /automount/home
Mar 31 12:34:13 scheitan automount[5698]: >> mount to NFS server 'gargantua' failed: server is down.

There are no other log messages nor messages in the server's logs.

Shared which were mounted before the update were usable but mounting additional shares failed.
Reboot of client/server didn't change anything.

rpcinfo and showmount returned normal autput as expacted. (showed available nfs ports and all exported dirs)

After rollback to version util-linux-2.12a-19 everything is fine.

Version-Release number of selected component (if applicable):

How reproducible:

Steps to Reproduce:
1. update util-linux to version 2.12a-19
2. try to mount NFS by UDP
3. read error message ;-)

Actual Results:  NFS was not mountable

Expected Results:  NFS share should have been mounted

Additional info:

Comment 1 Tom Hughes 2005-03-31 12:22:39 UTC
UDP mounts do work, but you need to use -udp explicitly as the default seems to
have changed to TCP.

Comment 2 Frank Wittig 2005-03-31 13:05:02 UTC
Adding udp option to my autofs config did it.
But changing default options in such minor version changes is very dangerous, I
think. (Some sort of pseudo bug ;-))

Comment 3 Petr Baudis 2005-03-31 13:35:01 UTC
I have to agree. It has burnt us pretty nastily, our FC3 installations stopping
to work randomly. Well, nothing against changing the default, but it should fall
back to udp if tcp fails. I guess this can break a lot of network deployments.

Comment 4 Petr Baudis 2005-03-31 13:37:54 UTC
(FWIW, now I see this is a dupe to bug 150775.)

Comment 5 Karel Zak 2005-03-31 14:22:36 UTC
Frank, please don't CLOSE this bug anymore.... it's important regression problem.

Comment 6 alvin 2005-03-31 15:55:12 UTC
The error message I got from mount was mount to NFS server 'bfs' failed: server
is down.

This had me really confused for a while. If you cannot fail back to the old
default the error message should at least allude to a possible solution.
Somthing like "TCP mount failed.

One of the people here found that SUSE seems to deal with things more cleanly.
the SUSE mounter complained about TCP mounting but went on to use UDP.

Comment 7 Steve Dickson 2005-03-31 22:04:44 UTC
Created attachment 112551 [details]
Patch that fixes nfs mounts to rollback correctly

The rpm and srpm that contains this patch is available

Comment 8 Michal Jaegermann 2005-04-01 02:21:43 UTC
This is really a duplicate of #149798 which still lingers.  Only in February
I did not check that it affects not only x86_64 and kind of forgot about the

Comment 9 Ralph Loader 2005-04-01 03:47:25 UTC
'man 5 nfs' still claims that UDP is the default, by the way.

Comment 10 Dan Naughton 2005-04-01 16:27:40 UTC
I tried the version util-linux-2.12a-22 from and it seems to work well.

Comment 11 Steve Dickson 2005-04-01 18:34:02 UTC
*** Bug 147017 has been marked as a duplicate of this bug. ***

Comment 12 Steve Dickson 2005-04-01 19:28:04 UTC
*** Bug 136592 has been marked as a duplicate of this bug. ***

Comment 13 Paul Dickson 2005-04-02 13:40:25 UTC
(In reply to comment #10)
> I tried the version util-linux-2.12a-22 from
> and it seems to work well.

I also tried util-linux-2.12a-22 from the above and it resolves my problems.

This should be pushed out to the updates ASAP.  The latest updates contains an update and reboots will be much more common (and hitting this problem).  I
had to trace this problem back via my yum.log entries.

Thanks for the effort.

Comment 14 Karel Zak 2005-04-05 18:34:58 UTC
*** Bug 153762 has been marked as a duplicate of this bug. ***

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