[Nbd] Problems creating new device files

[Daniele Testa <daniele.testa@...17...>]

Hi,

I am trying to create new devices files, i.e /dev/nbdXX but I'm having problems.

(root@...1277...)-(/dev)# mknod /dev/nbd32 b 43 512

(root@...1277...)-(/dev)# nbd-client example.com 10002 /dev/nbd32

Error: Cannot open NBD: No such device or address

Please ensure the 'nbd' module is loaded.

(root@...1277...)-(/dev)# ls -al|grep nbd

brw-rw----  1 root disk     43,   0 2013-03-01 18:11 nbd0

brw-rw----  1 root disk     43,  16 2013-03-03 08:54 nbd1

brw-rw----  1 root disk     43, 160 2012-12-28 01:11 nbd10

brw-rw----  1 root disk     43, 176 2012-12-28 01:11 nbd11

brw-rw----  1 root disk     43, 192 2012-12-28 01:11 nbd12

brw-rw----  1 root disk     43, 208 2012-12-28 01:11 nbd13

brw-rw----  1 root disk     43, 224 2012-12-28 01:11 nbd14

brw-rw----  1 root disk     43, 240 2012-12-28 01:11 nbd15

brw-rw----  1 root disk     43,  32 2013-03-03 07:50 nbd2

brw-rw----  1 root disk     43,  48 2012-12-28 01:11 nbd3

brw-r--r--  1 root root     43, 512 2013-03-03 08:49 nbd32

brw-rw----  1 root disk     43,  64 2012-12-28 01:11 nbd4

brw-rw----  1 root disk     43,  80 2012-12-28 01:11 nbd5

brw-rw----  1 root disk     43,  96 2012-12-28 01:11 nbd6

brw-rw----  1 root disk     43, 112 2012-12-28 01:11 nbd7

brw-rw----  1 root disk     43, 128 2012-12-28 01:11 nbd8

brw-rw----  1 root disk     43, 144 2012-12-28 01:11 nbd9

The existing device files that was created by the installation of NBD works fine:

(root@...1277...)-(/dev)# nbd-client r1.exice.com 10002 /dev/nbd1

Negotiation: ..size = 2097152KB

bs=1024, sz=2097152

What am I doing wrong?

Regards,

Daniele