[Nbd] Fwd: [RFC]nbd-client connect error

[Paul Clements <paul.clements@...856...>]

---------- Forwarded message ----------
From: harryxiyou <harryxiyou@...17...>
Date: Mon, Jul 25, 2011 at 2:13 AM
Subject: [RFC]nbd-client connect error
To: wouter@...825...
Cc: hua kang <xiyoucloud@...17...>, linux-kernel@...25...,
linux-kernel@...917..., Américo Wang <xiyou.wangcong@...17...>,
孔建军 <kongjianjun@...17...>, pavel@...28..., Paul.Clements@...124...


Hi all,
When i use ndb-server and nbd-client tools, something wrong(maybe a
bug) happens to like following.

Server: (IP: 192.168.1.103)
# uname -a
Linux wangzhe-laptop 2.6.32-33-generic #68-Ubuntu SMP Fri Jun 17
16:25:19 UTC 2011 i686 GNU/Linux

# cat /usr/etc/nbd-server/config
[generic]
[export]
exportname = /root/1.c
port = 2001

# nbd-server

Client: (IP: 192.168.1.30)

# uname -a
Linux localhost.localdomain 2.6.18-238.12.1.el5 #1 SMP Tue May 31
13:23:01 EDT 2011 i686 i686 i386 GNU/Linux

# nbd-client 192.168.1.103 2001 /dev/nbd0
Negotiation: ..size = 0MB
Error: Ioctl/1.1a failed: Inappropriate ioctl for device

Exiting.

# nbd-client 192.168.1.103 2001 /dev/sda1
Negotiation: ..size = 0MB
Error: Ioctl/1.1a failed: Invalid argument

Exiting.


I suspect the client machine's kernel version is too low to run the
command nbd-client.
Maybe the same problem with server machine. Could anyone give me some
suggestions?


Thanks in advance
Harry Wei