U-Boot access through Netconsole

Posted on 2016-06-15
Medium Priority
Last Modified: 2017-07-31
I am running Fedora 19 and I am trying to set up Ethernet access to the U-Boot of an embedded device.  I have already loaded a build of U-Boot with Netconsole enabled, but I do not know the basic steps of getting connected from Linux to U-Boot via Netconsole.

Here is what I have done so far.

In U-Boot (
#setenv nc 'setenv stdout nc;setenv stdin nc'
#setenv ncip
#run nc

In Fedora 19 (
#nc -l -u 6666 &
#./uboot/tools/netconsole 6666
NOTE: the interrupt signal (normally ^C) has been mapped to ^T

After this point, there is no output on the Linux screen so it may not have connected to U-Boot.

What are the proper steps for getting Netconsole working between Linux and U-Boot?
Question by:sctccomm
1 Comment

Author Comment

ID: 41655951
I can use Wireshark to capture the packets coming out of my Linux towards the U-Boot when I type, but still no response from U-Boot.

I have also tried the following.

In U-Boot (
#setenv nc 'setenv stdin serial;setenv stdout nc'
#setenv ncip
#run nc

When I type in U-Boot, I can capture packets from the U-Boot to my Linux PC, but there is nothing shown on my Linux console.

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