A tutorial on Building TFTP Server based on SAIL-IMX6
1. Install servers, clients, and daemons
# sudo apt-get install tftp-hpa tftpd-hpaxinetd
two。 Server configuration
First, create a tftpboot in the root directory and change the property to any user readability:
# cd /
# sudo mkdir tftpboot
# sudo chmod 777 tftpboot
Then, go to the directory / etc/xinetd.d/, and create a new file tftp in it, adding the specified contents to the tftp file:
# cd / etc/xinetd.d/
# sudo vi tftp
Add the following to the tftp file
Service tftp
{
Disable = no 138
Socket_type = dgram
Protocol = udp
Wait = yes
User = root
Server = / usr/sbin/in.tftpd
Server_args =-s / tftpboot-c
Per_source = 11
Cps = 100 2
}
Finally, modify the configuration file / etc/default/tftpd-hpa to
TFTP_USERNAME= "tftp"
TFTP_DIRECTORY= "/ tftpboot"
TFTP_ADDRESS= "0.0.0.0Vol 69"
TFTP_OPTIONS= "--secure-l-c-s"
Note: change "TFTP_DIRECTORY" to the path where the new tftpboot directory is located.
3. Restart the service
# sudo / etc/init.d/xinetd reload
# sudo / etc/init.d/xinetd restart
# sudo / etc/init.d/tftpd-hpa restart
4. Test server
Test it and create a new file under the / tftpboot folder
# touch abc
Go to another folder
# tftp 192.168.2.51 (192.168.2.51 is native IP)
# tftp > get abc
If you can download the server, you can use tftp to download the file after connecting the development board with PC through the network cable.
The tftp command is used as follows
Tftp your-ip-address
Enter the TFTP operation:
Connect: connecting to a remote tftp server
Mode: file transfer mode
Put: uploading files
Get: downloading files
Quit: exit
Verbose: displays detailed processing information
Tarce: displays the package path
Status: displays current status information
Binary: binary transfer mode
Ascii:ascii transfer mode
Rexmt: sets the timeout for packet transmission
Timeout: sets the timeout for retransmission
Help: help information
?: help information
5.] uboot uses tftp
(1)。 Connect the network port of the host and the development board with a network cable, and copy the compiled kernel image uImage and device tree files to the tftpboot directory.
(2)。 Enter the uboot phase, modify the environment variables and save:
Setenv
Ethaddr e6:97:d9:0c:f7:7a sets MAC
Setenv
Serverip 192.168.2.51 sets the IP of the tftp server
Setenv
Ipaddr 192.168.2.85 sets the local IP
Setenv
Image imx6qdl/zImage sets the kernel image to be downloaded locally on the tftp server
Setenv
Fdt_file imx6qdl/imx6q-s3-sabresd.dtb sets the device tree downloaded to the local on the tftp server
Setenv
Nfs_rootfs/ nfs_rootfs/imx6qdl-rootfs sets the NFS file system location
Saveenv
(3)。 Select Network Startup from the uboot menu
Restart the development board, and after u-boot starts, quickly press any key to enter the uboot menu.
-- MainMenu
0-- exitto uboot shell
1-- select boot mode
Enter serial number 1 to enter the startup type selection option
-- BOOTMODE Menu
0-- exitto upper menu
1-- bootfrom net
2-- bootfrom emmc
Enter serial number 1 to set the development board to start from the network, and then restart the development board.
Later, if you want to boot from emmc, you can also select boot from emmc.
