Error mount NFS -- nfs4_get_rootfh
Geoffrey Leach
geoff at hughes.net
Thu Jan 5 04:15:12 UTC 2012
On 01/04/2012 05:36:01 PM, Ed Greshko wrote:
> On 01/05/2012 05:21 AM, Geoffrey Leach wrote:
> > Connection refused, as before No actual output from the client, as
> I'm
> > reduced to sneakernet at this point.
>
> To add to what Craig has said..... (reminder, don't forget to
> restart
> idmapd after changes to the config)
>
> Could you post exactly what you are seeing when you issue the "mount"
> command? Are you getting a notice saying "connection refused"?
Ed (and Craig)
I feel I'm loosing control of my data -- not your fault, of course :-)
So, to deal with the problem I'm maintaining all of my results in a
baseline file. Which is attached. If there is something that you need
to know that's not in the file, let me know and I'll add it.
> From the client what happens if you
>
> telnet serverIP 2049
Telnet testing
Server:
# telnet -d pvr 2049
Trying 192.168.10.4...
Connected to pvr.
Escape character is '^]'.
x
x
Connection closed by foreign host.
Client
# telnet -d mtranch 2049
Trying 192.168.10.2...
telnet: Connect to 192.168.10.2: Connection refused.
Here's a thought. What if the problem is not with NFS at all, but some
precursor process?
-------------- next part --------------
The problem is that I'm unable to mount an NFS4-exported filesystem on
the client. Initially, the server rejected the NFS request. Now, RPC
is rejecting the connection.
Two X86 32-bit PCs, connected via wireless wlan0. Kernel on both systems
is 3.1.6-1.fc16.i686.PAE Connection is managed by NetworkManager.
Both systems are running an up-to-date Fedora 16. Rebooting does not
change the problem.
I would appreciate inshight as to what is happening. As I'm reliably informed
that a for all intents and purposes configuration is working, I have to
assume that it's something that I've done. But what?
===============
Detail.
First the setup.
Server:
% cat /etc/exports
/nfs4exports 192.168.0.0/24(ro,sync,insecure,root_squash,no_subtree_check,fsid=0)
/nfs4exports/home 192.168.0.0/24(rw,nohide,sync,insecure,root_squash,no_subtree_check)
% ls -ld /nfs4exports/ /nfs4exports/*
drwxrwxrwt 5 root root 4096 Dec 31 15:34 /nfs4exports//
drwxrwxrwt. 6 root root 4096 May 18 2011 /nfs4exports/home/
# systemctl -a |grep nfs
nfs4exports-home.mount loaded active mounted /nfs4exports/ home
proc-fs-nfsd.mount loaded active mounted RPC Pipe File System
nfs-idmap.service loaded active running NFSv4 ID-name mapping daemon
nfs-lock.service loaded active running NFS file locking service.
nfs-server.service loaded active running NFS Server
Client:
% systemctl -a |grep nfs
nfs-idmap.service loaded active running NFSv4 ID-name mapping daemon
nfs-lock.service loaded active running NFS file locking service.
firewall is disabled on both systems.
SElinux is disabled on both systems.
/etc/hosts (both)
127.0.0.1 mtranch mtranch.mtranch.com mtranch4 localhost.localdomain localhost localhost4
::1 mtranch.mtranch.com mtranch localhost6.localdomain6 localhost6
192.168.10.1 netgear
192.168.10.2 mtranch.mtranch.com mtranch
192.168.10.4 pvr.mtranch.com pvr
Here's what happened first -- when the NFS connection was rejected
# mount -t nfs4 mtranch:/nfs4exports/home /mtranch-home
mount.nfs: access denied by server while mounting mtranch:/nfs4exports/home
Debug:
# sysctl -w sunrpc.nfs_debug=1023
# mount -t nfs4 mtranch:/home /mtranch-home
# dmesg ( Error 13 is: Permission denied )
[ 9772.530553] --> nfs4_create_server()
[ 9772.530567] --> nfs4_init_server()
[ 9772.530568] --> nfs4_set_client()
[ 9772.530570] --> nfs_get_client(mtranch,v4)
[ 9772.532498] NFS: Callback listener port = 54051 (af 2)
[ 9772.532509] NFS: Callback listener port = 34833 (af 10)
[ 9772.532549] --> nfs_get_client() = f2337a00 [new]
[ 9772.532551] <-- nfs4_set_client() = 0 [new f2337a00]
[ 9772.532561] <-- nfs4_init_server() = 0
[ 9772.532564] --> nfs4_get_rootfh()
[ 9772.532569] encode_compound: tag=
[ 9772.533339] encode_compound: tag=
[ 9772.533945] encode_compound: tag=
[ 9772.533966] encode_compound: tag=
[ 9772.534696] encode_compound: tag=
[ 9772.535725] encode_compound: tag=
[ 9772.536449] encode_compound: tag=
[ 9775.536039] encode_compound: tag=
[ 9775.537400] encode_compound: tag=
[ 9775.539288] nfs4_get_rootfh: getroot error = 13
[ 9775.539291] <-- nfs4_get_rootfh() = -13
[ 9775.539293] --> nfs_free_server()
[ 9775.539340] --> nfs_put_client({1})
[ 9775.539343] --> nfs_free_client(4)
[ 9775.539449] <-- nfs_free_client()
[ 9775.539457] <-- nfs_free_server()
[ 9775.539459] <-- nfs4_create_server() = error -13
[ 9775.539463] <-- nfs4_mount() = -13 [error]
Rejection from RPC
dmesg after mount; mount is looping
111 is (supprise!) Connection refused
[ 1498.776618] --> nfs4_create_server()
[ 1498.776631] --> nfs4_init_server()
[ 1498.776633] --> nfs4_set_client()
[ 1498.776634] --> nfs_get_client(mtranch,v4)
[ 1498.776738] nfs_create_rpc_client: cannot create RPC client. Error = -111
[ 1498.776740] <-- nfs4_init_client() = xerror -111
[ 1498.776742] --> nfs_put_client({1})
[ 1498.776743] --> nfs_free_client(4)
[ 1498.776745] <-- nfs_free_client()
[ 1498.776747] <-- nfs4_set_client() = xerror -111
[ 1498.776748] <-- nfs4_init_server() = -111
[ 1498.776749] --> nfs_free_server()
[ 1498.779070] <-- nfs_free_server()
[ 1498.779073] <-- nfs4_create_server() = error -111
[ 1498.779077] <-- nfs4_mount() = -111 [error]
[ 1499.779258] --> nfs4_create_server()
[ 1499.779277] --> nfs4_init_server()
[ 1499.779278] --> nfs4_set_client()
[ 1499.779280] --> nfs_get_client(mtranch,v4)
[ 1499.779363] nfs_create_rpc_client: cannot create RPC client. Error = -111
[ 1499.779365] <-- nfs4_init_client() = xerror -111
[ 1499.779367] --> nfs_put_client({1})
[ 1499.779368] --> nfs_free_client(4)
[ 1499.779370] <-- nfs_free_client()
[ 1499.779371] <-- nfs4_set_client() = xerror -111
[ 1499.779373] <-- nfs4_init_server() = -111
[ 1499.779374] --> nfs_free_server()
[ 1499.782044] <-- nfs_free_server()
[ 1499.782047] <-- nfs4_create_server() = error -111
[ 1499.782050] <-- nfs4_mount() = -111 [error]
Telnet testing
Server:
# telnet -d pvr 2049
Trying 192.168.10.4...
Connected to pvr.
Escape character is '^]'.
x
x
Connection closed by foreign host.
Client
telnet -d mtranch 2049
Trying 192.168.10.2...
# telnet: Connect to 192.168.10.2: Connection refused.
More information about the users
mailing list