Package: nfs-kernel-server
Version: 1.2.2
Architecture: amd64
This issue is related to nfs-utils 1.2.2 against amd64 (x86_64)
architecture. This test works against the x86 (32 bit) architecture.
When using nfs-kernel-server on amd64, files cannot be written even though
the group permission is set correctly. This looks like a group permission
issue.
Test setup are two servers running Lenny with the nfs-common and
nfs-kernel-server version 1.2.2 from backport.
Server 1 (nfs_client)
---------------------
# dpkg -l nfs-common
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
||/ Name
Version Description
+++-=============================================-=============================================-==========================================================================================================
ii nfs-common
1:1.2.2-1~bpo50+1 NFS support files common to
client and server
Server 2 (nfs_server)
---------------------
# dpkg -l nfs-kernel-server nfs-common
Desired=Unknown/Install/Remove/Purge/Hold
|
Status=Not/Inst/Cfg-files/Unpacked/Failed-cfg/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Hold/Reinst-required/X=both-problems (Status,Err:
uppercase=bad)
||/ Name
Version Description
+++-=============================================-=============================================-==========================================================================================================
ii nfs-common
1:1.2.2-1~bpo50+1 NFS support files common to
client and server
ii nfs-kernel-server
1:1.2.2-1~bpo50+1 support for NFS kernel server
/etc/exportfs from nfs_server:
/data *(rw,sync,no_root_squash,no_subtree_check)
The test from nfs_client:
r...@nfs_client# mount -t nfs -o vers=3 nfs_server:/data /mnt
r...@nfs_client# mount | grep mnt
nfs_server:/data on /mnt type nfs (rw,vers=3,addr=<hidden>)
r...@nfs_client# mkdir /mnt/adm
r...@nfs_client# chgrp adm /mnt/adm
r...@nfs_client# chmod g+w /mnt/adm
r...@nfs_client# ls -ld /mnt/adm
drwxrwxr-x 2 root adm 4096 2010-06-08 11:23 /mnt/adm
r...@nfs_client# groups user
user
r...@nfs_client# adduser user adm
Adding user `user' to group `adm' ...
Adding user user to group adm
Done.
r...@nfs_client# groups user
user adm
r...@nfs_client# su - user
u...@nfs_client$ ls -ld /mnt/adm
drwxrwxr-x 2 root adm 4096 2010-06-08 11:23 /mnt/adm
u...@nfs_client$ cd /mnt/adm
u...@nfs_client:/mnt/adm$ ls -ald .
drwxrwxr-x 2 root adm 4096 2010-06-08 11:23 .
u...@nfs_client:/mnt/adm$ touch a
touch: cannot touch `a': Permission denied
u...@nfs_client:/mnt/adm$ df -kh .
Filesystem Size Used Avail Use% Mounted on
nfs_server:/data
7.5G 667M 6.5G 10% /mnt
This was also tested against the Squeeze distribution with the same result.
Downgrading nfs-kernel-server and nfs-common on nfs_server to 1.1.2 works.
