TFTP on Ubuntu 10.04

The behaviour is different on my Windows machine:  it now times out instead saying that the connection was refused.  The timeout is for GET and PUT.  My custom board has the same behaviour as before: still times out when trying to get uImage.  "Netstat -a | grep tftp" does return a tftp process now.

Hi Inderjit,

I had problems using tftpd in a VMware virtual machine. I solved the problem momentarily making a script that configures TFTP server in a Ubuntu 10.04 live session. I just execute it and then I can download images from the board. Maybe it helps you:

#!/bin/bash

# ======================================
# SCRIPT TO INSTALL AND CONFIGURE UBUNTU
# TFTP SERVER TO WORK WITH OMAP-L138 EVM
# ======================================
#                         By cerilet.com

# Install TFTP client and server and SSH
sudo apt-get install tftpd-hpa tftp-hpa ssh

# Changing permissions of directory /var/lib/tftpboot
sudo chmod 777 /var/lib/tftpboot

# Change configuration of tftpd-hpa and add this
# RUN_DAEMON="yes"
# OPTIONS="-c -l -s /tftpboot"
sudo mv /etc/default/tftpd-hpa /etc/default/tftpd-hpa_ORIGINAL
# Downloading the new configuration file from my server
sudo wget -O /etc/default/tftpd-hpa http://cerilet.com/omap/tftpd-hpa

# Start the server
sudo /etc/init.d/tftpd-hpa start

# Downloading kernel and filesystem images from server
wget  -O /var/lib/tftpboot/uImage_arago http://cerilet.com/omap/uImage_arago
wget  -O /var/lib/tftpboot/uImage_dani http://cerilet.com/omap/uImage_dani
wget  -O /var/lib/tftpboot/uImage_dani2 http://cerilet.com/omap/uImage_dani2
wget  -O /var/lib/tftpboot/uImage_DaVinci http://cerilet.com/omap/uImage_DaVinci

wget  -O /var/lib/tftpboot/arago.ext2.gz http://cerilet.com/omap/arago.ext2.gz
wget  -O /var/lib/tftpboot/arago.jffs2 http://cerilet.com/omap/arago.jffs2
wget  -O /var/lib/tftpboot/arago.tar.gz http://cerilet.com/omap/arago.tar.gz

wget  -O /var/lib/tftpboot/evm-demo-img.ext2.gz http://cerilet.com/omap/evm-demo-img.ext2.gz
# wget -O /var/lib/tftpboot/evm-demo-img.jffs2 http://cerilet.com/omap/evm-demo-img.jffs2
# wget -O /var/lib/tftpboot/evm-demo-img.tar.gz http://cerilet.com/omap/evm-demo-img.tar.gz

# Changing password of the live CD user
sudo passwd ubuntu

Regards,

Cerilet.

Thanks.  I didn't run the full script, just the following:

sudo apt-get install tftpd-hpa tftp-hpa ssh

sudo chmod 777 /var/lib/tftpboot

sudo mv /etc/default/tftpd-hpa /etc/default/tftpd-hpa_ORIGINAL

sudo wget -O /etc/default/tftpd-hpa http://cerilet.com/omap/tftpd-hpa

I then rebooted the machine, and the behaviour is the same:  all attempts to use tftp time out.

Had you reviewed the iptables configuration? Or maybe if you are using a router have to open the tftp port (69).

Take a look to this post:

http://blog.colovirt.com/2009/03/31/linuxnetworkingsecurity-tftp-deamon-setup-and-cisco-configuration-backup/

The settings that work for PC to Linux Box:

/etc/default/tftpd-hpa:

#Defaults for tftpd-hpa
RUN_DAEMON=”yes”
OPTIONS=”-c -l -s /tftpboot”

/etc/xinetd.d/tftp

service tftp
{
protocol = udp
port = 69
socket_type = dgram
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -c -s /tftpboot
disable = no
per_source = 11
cps = 100 2
}

Commenting out "ftp dgram udp4 wait root  /usr/sbin/in.tftpd /usr/sbin/in.tftpd -s /tftpboot" in  /etc/inetd.conf does not seem to make a difference, and neither does "root" vs. "nobody" as the owner of /tftpboot.  "user = root" in /etc/xinetd.d/tftp vs "nobody" does make a difference:  TFTP does not work on the Window PC to the Linux Host without it.

For the custom board, I'm getting some results.  Instead of a "*" turning into a series of "T"s (indicating timeouts), I'm now getting some "#"s, but a lot more "T"s.  This may be a hardware or U-Boot issue, but it's odd that the router can assign an IP address to the board (which can be picked up by DCHP on the custom board), and ping works to the Linux Box and Windows PC from the custom board.

I am having similar issues getting DM355 PSP 3.1 - to TFTP Boot.  I have followed all the items on the wiki, e2e and even some google ubuntu/tftp searches but still stuck.

Here is my /etc/init.d/xinetd and /etc/default/tftp-hpa files:

# /etc/default/tftpd-hpa

RUN_DAEMON="yes"
USERNAME="tftp"
# DIRECTORY="/srv/tftp"
DIRECTORY="/tftpboot"
ADDRESS="0.0.0.0:69"
OPTIONS="-c -l -s /tftpboot"

user@marc-laptop:/etc/xinetd.d$ cat tftp
service tftp
{
protocol = udp
port = 69
socket_type = dgram
wait = yes
user = root
server = /usr/sbin/in.tftpd
server_args = -c -l -s /tftpboot
per_source = 11
cps = 100 2
disable = no
}

I keep getting 'Could Not establish Link'

DM355 EVM > tftp 0x80700000 uImage
dm9000 i/o: 0x4014000, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 00:0e:99:02:ce:78
could not establish link
TFTP from server 192.168.1.2; our IP address is 192.168.1.3
Filename 'uImage'.
Load address: 0x80700000
Loading: T
Abort
DM355 EVM >
 CTRL-A Z for help |115200

Marc,

Can you share your bootargs as well as your environment settings?  I want to see how DHCP or your static IP is setup as well as all the other network and environment settings. 

Jeff,

DM355 EVM > pri
bootdelay=4
baudrate=115200
bootcmd=dhcp;bootm
serverip=192.168.1.2
bootfile=uImage
nfshost=192.168.1.2
rootpath=/home/user/workdir/filesystem
ethaddr=00:0e:99:02:ce:78
bootargs=console=ttyS0,115200n8 rw noinitrd root=/dev/nfs nfsroot=192.168.1.2:/home/user/workdir/filesystem,nolock mem=116M ip=
dhcp
stdin=serial
stdout=serial
stderr=serial
videostd=ntsc
ver=U-Boot 2009.03 (Jun 21 2010 - 15:13:07)
ipaddr=192.168.1.3
gatewayip=192.168.1.1
netmask=255.255.255.0
dnsip=192.168.1.1

Environment size: 481/524284 bytes
DM355 EVM > tftp 0x80700000 uImage
dm9000 i/o: 0x4014000, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 00:0e:99:02:ce:78
operating at 100M full duplex mode
TFTP from server 192.168.1.2; our IP address is 192.168.1.3
Filename 'uImage'.
Load address: 0x80700000
Loading: T T T T T
Abort

DM355 EVM > dhcp
dm9000 i/o: 0x4014000, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 00:0e:99:02:ce:78
could not establish link
BOOTP broadcast 1
BOOTP broadcast 2

Abort
DM355 EVM >

Along w/ environment and the previous post w/  /etc/xinet.d/tftp and /etc/default/tftp-hpa files, i have done the following to restart the services.  Still no success?

user@marc-laptop:/etc/xinetd.d$ sudo service tftpd-hpa restart
tftpd-hpa start/running

user@marc-laptop:/etc/xinetd.d$ sudo service xinetd restart
 * Stopping internet superserver xinetd                                                                        [ OK ]
 * Starting internet superserver xinetd                                                                        [ OK ]
user@marc-laptop:/etc/xinetd.d$

I would advise people who don't know whether the problem is the linux server or the embeded client to use another PC as a client to tftp a file and eliminate one of the two possibilities.

John A

I would try this but another complete setup, 'Ubuntu HOST' + 'DM355 EVM' at another site is experiencing the same problem.  I have been playing w/ the

/etc/xinetd.conf
/etc/xinetd.d/tftp
/etc/default/tftp-hpa

files and i'm now NOT getting 'could not establish link', and instead its just timing out. 

DM355 EVM > tftp 0x80700000 uImage_dm355
dm9000 i/o: 0x4014000, id: 0x90000a46
DM9000: running in 16 bit mode
MAC: 00:0e:99:02:ce:78
operating at 100M full duplex mode
TFTP from server 192.168.1.2; our IP address is 192.168.1.3
Filename 'uImage_dm355'.
Load address: 0x80700000
Loading: T T T
Abort
DM355 EVM >

======================================================

I've also tried to tftp locally to take the EVM out of the equation.

user@marc-laptop:/etc/xinetd.d$ sudo tftp -v localhost -c get uImage_dm355
Connected to localhost (::1), port 69
getting from localhost:uImage_dm355 to uImage_dm355 [netascii]
Transfer timed out.

======================================================

So there must be something wrong w/ my xinetd and/or tftp-hpa setup?

I have also verified the Firewall is off.

The following is something I found off the internet when I first set up my TFTP.  I didn't use the method in the DVSDK.

Installing and setting TFTPD in Ubuntu

by David Sudjiman ~ March 27th, 2006.
Filed under: Linux.

1. Install tftpd and related packages.

$ sudo apt-get install xinetd tftpd tftp

2. Create /etc/xinetd.d/tftp and put this entry:

service tftp

{
 
protocol        = udp
 
port            = 69
 
socket_type     = dgram
 
wait            = yes
 
user            = nobody
 
server          = /usr/sbin/in.tftpd
 
server_args     = /tftpboot
 
disable         = no

}

3. Make /tftpboot directory

$ sudo mkdir /tftpboot

$ sudo chmod -R 777 /tftpboot

$ sudo chown -R nobody /tftpboot

4. Restart xinetd

$ sudo /etc/inet.d/xinetd restart

John A

John,

I went through these steps several times to no avail.  I went as far as removing tftp-hpa and reinstalling it.  Still stuck.