# Booting kernel from Legacy Image at 80200000. The command requires two arguments: the address to load the file into and the filename of the image on the TFTP server. TFTP from server 192.168.1.4 our IP address is 192.168.1.11 The tftp U-Boot command is used to transfer files to the system. U-Boot# setenv bootargs console=ttyO0,115200 root=/dev/mmcblk0p2 rw rootwait ip=dhcp Trivial File Transfer Protocol (TFTP) is a simple. Next will be configuring the server-ip, kernel’s command line and the load address This page will show you how to setup a TFTP server on your local Linux machine and boot images via TFTP. Link up on port 0, speed 100, full duplexĭHCP client bound to address 192.168.1.11 Make sure that ethernet cable is plugged into the board and a dhcp server is running in either your host machine or your router. Linux uses DHCP again to get an IP address and retrieve the root-path arguments. U-Boot sets the kernel's command line so that the kernel mounts the rootfs from an NFS server. USB Host mode controller at 47401800 using PIO, IRQ 0 Actual procedure first, launch a tftp server running on address 192.168.1.234, serving the openwrt firmware file, renamed to firm.bin mkdir -p /tmp/tftp/ cp /tmp/tftp/firm.bin sudo ip addr add 192.168.1. U-Boot executes the script, obtaining linux kernel image, device tree/device tree overlays, auxiliary binaries (like M4 elf files or GPU firmware). USB Peripheral mode controller at 47401000 using PIO, IRQ 0 Musb-hdrc: ConfigData=0xde (UTMI-8, dyn FIFOs, bulk combine, bulk split, HB-ISO Rx, HB-ISO Tx, SoftConn) *** Warning - readenv() failed, using default environment Power up the board and and get to the u-boot prompt: Note: The SD card containing MLO and u-boot should always be present in the beaglebone’s slot. Now that the server has been setup in our host machine, we may now concentrate on the target system. To install, run: sudo apt-get install tftpd-hpa tftp-hpaīefore we begin, we need to configure the tftpd’s configuration file so edit:Īfter that restart the daemon: sudo service tftpd restart For those who wanted to try out this fantastic way of booting, here is my short howto:īefore I begin, here is snapshot of my development platform: Configure and start a serial port terminal emulator program such as minicom. Verify that a TFTP server is installed and started on your Linux PC and that vmlinux is in the /tftpboot directory. This is a very handy way of booting when you need to recompile your kernel repeatedly and inserting/removing the card from/to board becomes a tedious process. Copy the /opt/sgibcm2417/linux/vmlinux image to the /tftpboot directory. Since beaglebone is hard-wired to boot off an SD card I found it tedious to shuttle the card between my development laptop and the board. I was fiddling around with my newly purchased Beaglebone and wanted to get my hands dirty with kernel hacking and stuff.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |