Ethernet console

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On this page you will learn how to move the default RS-232 console to Ethernet. This might be useful in systems where you want to use the RS-232 port for something else or if you want a remote console.

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U-Boot

  • modify the config header file for your board and add it:
#define CONFIG_NETCONSOLE 1
  • recompile and reflash your U-Boot:
$ make uboot-rebuild
  • redefine some environment variables (here 192.168.1.2 is the IP address of my Host PC):
BIOS> setenv ncip 192.168.1.2
BIOS> setenv stdin nc; setenv stdout nc; setenv stderr nc

Linux

  • You have to use netconsole script from U-Boot sources (default port is 6666):
$ tools/netconsole <ip> [port]

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