Differences

This shows you the differences between two versions of the page.

--- en:general_information:tftp [2016/06/15 14:17] – liedmann
+++ en:general_information:tftp [2023/06/21 14:52] (current) – weinholdo
@@ Line 1: / Line 1: @@
-===== TFTP Server =====
+====== TFTP Server ======
-\\
-===== Ubuntu x86 in VMware player =====
-Tested with Ubuntu
+===== Setting up TFTP Server in Ubuntu =====
-  * 14.04
+TFTP (Trivial File Transfer Protocol) is a simplified version of FTP (File Transfer Protocol),running on port 69. It can be setup with very litte effort.\\
-  * 12.04
+For example the TFTP server can be used to provide the binaries (u-boot, device tree blob and Linux kernel) for firmware updates in u-boot on the target hardware.\\
+\\
+The first thing is to install install the client and the server package, together with xinetd superserver.
-The following guide desribes how to install and setup a tftp server under Ubuntu, the default TFTP suite is tftp-hpa.
+<code>
-To install the following step is needed:
+sudo apt-get install xinetd tftpd tftp
-<code bash>
-user@ubuntu:~$ sudo apt-get install xinetd tftpd tftp
 </code>
-The TFTP default directory is /var/lib/tftpboot. For convinience the following changes can be applied to the system:
+The next step is to create folder to act as TFTP root, the files for e.g. firmware updates on the Starterkit must be stored here .\\
+Typically this folder is located at the root level and named **tftpboot**
-  * Creation of a new directory for the server
+<code>
-  * setting the ownership for the tftp user
+sudo mkdir /tftpboot
-  * add user to the tftp group to have rights to the tftpd dirctory
+sudo chmod -R 777 /tftpboot
+sudo chown -R nobody /tftpboot
-<code bash>
-user@ubuntu:~$ sudo mkdir -p /srv/tftpd
-user@ubuntu:~$ sudo chown <user>:tftp /srv/tftpd
-user@ubuntu:~$ sudo chmod 775 /srv/tftpd
-user@ubuntu:~$ sudo usermod -a -G tftp <user>
 </code>
-Finally the server configuration for the TFTP server has to be changed:
+Now a new xinetd tftp serivce has to be configured by creating the file **/etc/xinetd.d/tftp** :
+<code>
+sudo nano /etc/xinetd.d/tftp
-<code bash>
-user@ubuntu:~$ sudo nano /etc/default/tftpd-hpa
 </code>
-Change the following line to point to the new created directory:
+Add the following lines of code:
 <code>
-TFTP_DIRECTORY="/srv/tftpd"
+service tftp
+{
+protocol        = udp
+port            = 69
+socket_type     = dgram
+wait            = yes
+user            = nobody
+server          = /usr/sbin/in.tftpd
+server_args     = /tftpboot
+disable         = no
+}
 </code>
+After setting up everything properly, the xinetd service must be restarted by the following command:
-To restart the TFTP server type:
+<code>
+sudo service xinetd restart
-<code bash>
-user@ubuntu:~$ sudo service tftpd-hpa restart
 </code>
-To test the server copy some file to the server and get it back with
+===== Further applicable links =====
+\\
+[[:en:general_information:tutorial:update_firmware_tftp|Updating existing firmware over ethernet]]
-<code bash>
-user@ubuntu:~$ tftp 127.0.0.1 -c get <filename>
-</code>