Installing TFTP server

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Background Information

The Trivial File Transfer Protocal, or TFTP, is used to transfer files from machine to machine with less overhead than other protocols. For more information about TFTP, see the following page:

Nearly all of the EMAC ARM based systems require a TFTP server to transfer the Linux kernel and file system to the board from a host PC. The boot loader will connect to the server to retrieve specific files and relocate them to SDRAM, which enables them to be programmed onto the target's flash.

Installing a TFTP server on Ubuntu

There are several TFTP server alternatives in Ubuntu. The tftpd or tftpd-hpa packages are recommended for installation.

Installing tftpd on Ubuntu

To install the tftpd package, run the following:

user@ldc:~# sudo apt-get install tftpd

To configure the the TFTP server, create /etc/xinetd.d/tftp with the following contents:

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

Run the following to create the TFTP server's base directory and allow anyone to access it:

user@ldc:~# sudo mkdir /tftpboot
user@ldc:~# sudo chmod -R 777 tftpboot
user@ldc:~# sudo chown -R nobody /tftpboot

Once the configuration is complete the xinetd deamon should be restarted to enable the server:

user@ldc:~# sudo /etc/init.d/xinetd restart

The TFTP server is then ready to send/recieve files from /tftpboot.

Installing a TFTP server on Windows

For Windows based systems, EMAC recommends the Tftpd32 server.

  1. Download the latest version of the program from the download page at:

  2. When the installer is finished downloading, run the .exe to start the installation. Note that Windows may ask for approval to run the installer.

  3. When the license agreement window appears click I Agree.


  4. Next the options windows will appear. Leave the default options and click Next.


  5. When the installation directory windows appears click Install.


  6. Upon sucessful installation, click Close.


The TFTP server is now installed on your Windows machine. Select the program from the start menu or Desktop to launch the server.

  1. The following firewall message may appear; click Allow access to continue.


  2. The main window for the TFTP server should appear.


  3. Click the Settings button to configure the server. In the GLOBAL tab unselect the DHCP Server check box.


  4. Next click the TFTP tab to configure the TFTP server. The Base Directory should be changed to the directory which will contain the files to be transferred. Clicking Browse under Base Directory will bring up a window to select the appropriate directory. Once the directory is set click Okay to return to the main window.


  5. Place the files that are to be transferred into the selected base directory. Upon successful transfer, the Tftp server tab will temporarily display the transfer.