Public bug reported:
I have the following setup:
1 server running latest CentOS 5, exporting filesystems via NFSv4:
/etc/exports:
/exports
172.16.1.0/24(ro,insecure,sync,wdelay,no_subtree_check,crossmnt,all_squash,fsid=0)
...
/exports/video \
phosphorus.lair(rw,insecure,sync,wdelay,subtree_check,root_squash,mp=/exports/video,fsid=2)
\
salamander.lair(rw,insecure,sync,wdelay,subtree_check,root_squash,mp=/exports/video,fsid=12)
...
1 client running latest Fedora 14, mounting filesystem via autofs
1 client running latest Ubuntu 11.04, mounting filesystem via autofs
On all three machines there are two users named scizzo (UID = 1023) and
mahajivana (UID = 1042), who are both members of the group madhouse (GID
= 4223). So since this is NFSv4 _and_ UIDs and GIDs are consistent on
all machines, ID mapping should be a very easy task and NFS should work
even without ID mapping.
idmapd.conf on all three machines contains the same domain "Domain =
lair".
On the nfs mounts are files and folders owned by one of these users, but
always owned by their shared group, which are (read- &) writeable by
that group, one example:
drwsrwsr-x 19 mahajivana madhouse 4.0K Aug 15 17:38 video/
Observed behaviour:
The F14 client can access the NFS shares and each user is able to access
(read & write) areas on the NFS shares that are writeable for their
shared group, but not for the users themself.
The U11.04 client can access the NFS shares, but they are limited to
files and folders they own, any rights (read + write) they should gain
through group membership are ineffective.
I'll attach two files named nfs-success.txt and nfs-fail.txt; nfs-
success.txt shows example commands that I ran on the the F14 client as
well as corresponding logging information from the client and the
server, nfs-fail.txt show the same example commands on the U11.04 client
and corresponding logs from the client and server. I hope this helps, if
not tell me which verbosity to increase and which commands to run.
Expected behaviour:
The U11.04 client should behave like the F14 client.
ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: nfs-kernel-server (not installed)
ProcVersionSignature: Ubuntu 2.6.38-10.46-generic 2.6.38.7
Uname: Linux 2.6.38-10-generic x86_64
Architecture: amd64
Date: Fri Aug 19 11:38:52 2011
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: nfs-utils
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: nfs-utils (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug natty
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https://bugs.launchpad.net/bugs/829312
Title:
NFS group mapping faulty
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