Tag Archives: console

Kernel Module – netconsole

The netconsole kernel module

If you do not have the hardware, wich is common because most laptops do not come with a COM port nowadays, you can use the netconsole module wich is very handy. It uses very low level network device calls to send via UDP console output across your network. It is included in the standard debian kernel. Using this may help you debug anything but your network device controller driver. In /etc/modprobe.d/, add a file that reads :

options netconsole netconsole=32769@ \

Where :

  • on eth1 is the ip/port/interface to use the send output from.
  • and mac address 01:23:34:56:78:9A is the ip/port/mac to send packets to.

On the box, run :

$ nc -l -p 32769 -u

Then, simply modprobe netconsole on and output should start to appear on

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