| 1 |
In my home lan setup its an opensolaris (zfs fs) NFS server that is |
| 2 |
supposed to be set to show NFS vers=3 on offer. |
| 3 |
|
| 4 |
Somehow on the client end... my gentoo desktop, its getting mounted |
| 5 |
with vers=4 as evidenced by the output of `mount' |
| 6 |
|
| 7 |
opensolairs_NFS_SERVER:/pub on /pub type nfs |
| 8 |
(rw,users,addr=192.168.0.29,vers=4,clientaddr=192.168.0.2) |
| 9 |
|
| 10 |
Note it says vers=4. I don't see where that is being set. |
| 11 |
|
| 12 |
/etc/conf.d/nfs mentiones NFS vers=4 but doesn't say that is what its |
| 13 |
telling the kernel to use. |
| 14 |
|
| 15 |
From /etc/conf.d/nfs |
| 16 |
# Optional services to include in default `/etc/init.d/nfs start` |
| 17 |
# For NFSv4 users, you'll want to add "rpc.idmapd" here. |
| 18 |
NFS_NEEDED_SERVICES="rpc.idmapd" |
| 19 |
|
| 20 |
Does that determine what version gets used... it doesn't sound like it |
| 21 |
would. |
| 22 |
|
| 23 |
These lines out of /etc/init.d/nfsmount seems to be the culprit: |
| 24 |
# Make sure nfs support is loaded in the kernel #64709 |
| 25 |
if [ -e /proc/modules ] && ! grep -qs 'nfs$' /proc/filesystems ; then |
| 26 |
modprobe -q nfs |
| 27 |
fi |
| 28 |
|
| 29 |
ebegin "Mounting NFS filesystems" |
| 30 |
mount -a -t nfs,nfs4 |
| 31 |
eend $? |
| 32 |
|
| 33 |
Or does `mount -a -t nfs,nfs4' just mean vers 4 is made available? |
| 34 |
|
| 35 |
I have 2,3 and 4 enabled in the kernel: |
| 36 |
|
| 37 |
zcat /proc/config.gz |grep 'NFS[^D].*=' |
| 38 |
|
| 39 |
CONFIG_NFS_FS=y |
| 40 |
CONFIG_NFS_V3=y |
| 41 |
CONFIG_NFS_V3_ACL=y |
| 42 |
CONFIG_NFS_V4=y |
| 43 |
CONFIG_NFS_ACL_SUPPORT=y |
| 44 |
CONFIG_NFS_COMMON=y |
| 45 |
|
| 46 |
There is also a: |
| 47 |
# CONFIG_NFS_V4_1 is not set |
| 48 |
But I think that is experimental, and not necessary for vers=4 to be |
| 49 |
available. |
| 50 |
|
| 51 |
So is the linux client supposed to decide which version to mount by |
| 52 |
what it sees on offer? |
| 53 |
|
| 54 |
If so, then is there a known problem when the server is opensolaris? |
| 55 |
|
| 56 |
I know opensolaris people tell me to set the server to offer only |
| 57 |
version=3 because there is some problem with linux if you use |
| 58 |
version=4. |
| 59 |
|
| 60 |
On the opensolaris lists, I've been discussing this, and it appears |
| 61 |
other users are not having a similar problem when they tell the |
| 62 |
server to use version=3 which I have (on the opensolaris server in |
| 63 |
/etc/default/nfs): |
| 64 |
|
| 65 |
# Sets the maximum version of the NFS protocol that will be used by |
| 66 |
# the NFS client. Can be overridden by the "vers=" NFS mount option. |
| 67 |
# If "vers=" is not specified for an NFS mount, this is the version |
| 68 |
# that will be attempted first. The default is 4. |
| 69 |
#NFS_CLIENT_VERSMAX=4 |
| 70 |
|
| 71 |
# [HP 03/12/09 00:20 |
| 72 |
NFS_CLIENT_VERSMAX=3 |
| 73 |
# ] |
| 74 |
|
| 75 |
------- --------- ---=--- --------- -------- |
| 76 |
|
| 77 |
Any input would be helpful.. |
Archives