apt-get install nbd-server		

# modprobe nbd
# mkdir -p /home/exported
# dd if=/dev/zero of=/home/exported/trial.img count=256 bs=1024k
# mkfs.ext3 /home/exported/trial.img

# nbd-server 1234 /home/exported/trial.img

# touch /root/empty
# nbd-server 1234 /home/exported/trial.img -C /root/empty
		

# apt-get install nbd-client


# nbd-client mine.my.flat 1234 /dev/nbd0
Negotiation: ..size = 262144KB
bs=1024, sz=262144

# mkdir /mnt/remote
# mount /dev/nbd0 /mnt/remote
# for i in $(seq 1 100) ; do echo $i > /mnt/remote/$i; done

# umount /mnt/remote 

root@vain:~#  nbd-client 127.0.0.1 1234 /dev/nbd0
root@vain:~# mkdir /tmp/foo
root@vain:~#  mount /dev/nbd0 /tmp/foo
root@vain:~#  ls /tmp/foo/
1    14  2   25  30  36  41  47  52  58  63  69  74  8   85  90  96
10   15  20  26  31  37  42  48  53  59  64  7   75  80  86  91  97
100  16  21  27  32  38  43  49  54  6   65  70  76  81  87  92  98
11   17  22  28  33  39  44  5   55  60  66  71  77  82  88  93  99
12   18  23  29  34  4   45  50  56  61  67  72  78  83  89  94  
13   19  24  3   35  40  46  51  57  62  68  73  79  84  9   95  lost+found