[U-Boot-Users] UBoot's terminal server

[U-Boot-Users] UBoot's terminal server

[vvj]

From UBoot manual:
"...There are several ways to access the serial console port on your target
system, such as using a terminal server, but the most common way is to
attach it to a serial port on your host. Additionally, you will need a
terminal emulation program on your host system, such as cu or kermit. .."

My question is:
How can I use Uboot shell wo RS232 COMport connection - are there ways to
get rsh (telnet or whatever) server working on UBoot? 
Yes, I'm using RS232 currently, but what if I want to use UBoot shell
through ethernet, how could I configure UBoot to make it setup "terminal
server"?
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[U-Boot-Users] UBoot's terminal server

[Ben Warren]

On Mon, 2007-04-23 at 07:36 -0700, vvj wrote:
> >From UBoot manual:
> "...There are several ways to access the serial console port on your target
> system, such as using a terminal server, but the most common way is to
> attach it to a serial port on your host. Additionally, you will need a
> terminal emulation program on your host system, such as cu or kermit. .."
> 
> My question is:
> How can I use Uboot shell wo RS232 COMport connection - are there ways to
> get rsh (telnet or whatever) server working on UBoot? 
> Yes, I'm using RS232 currently, but what if I want to use UBoot shell
> through ethernet, how could I configure UBoot to make it setup "terminal
> server"?

It's possible to route console over the network interface via
NetConsole.  Read about it in doc/README.NetConsole.


regards,
Ben

[U-Boot-Users] UBoot's terminal server

[vvj]

Thanks Ben,
I tried this way - it does not work.

First - UBoot issue:
when I enter "setenv stdout nc; setenv stdin nc'", the env var stays the
same - I can see it from "printenv".
I changed sources - set stdout and stdin to nc by default and erased env
var. Loading default values did not help: 
still I see 
...
In:    serial
Out:   serial
Err:   serial
Net:   Using MAC Address 12:34:56:78:9A:BD
Hit any key to stop autoboot:  0
...
I searched source code for 6666 or 1a0a (1A0A) - default port - nothing
found, except ncb.c from tools folder (linux app)

Second -  my Fedora5 issue:
It does not understand "nc -u -l -p 6666 < /dev/null &" - shows help topic
on that



So I really doubt this could work in described way.

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[U-Boot-Users] UBoot's terminal server

[Wolfgang Denk]

In message <10146755.post@talk.nabble.com> you wrote:
> 
> I tried this way - it does not work.

Did you check if the required features  are  enabled  in  your  board
configuration?

> I searched source code for 6666 or 1a0a (1A0A) - default port - nothing
> found, except ncb.c from tools folder (linux app)

You did not search thoroughly; I find more that 60 files:

	-> find * -type f | xargs egrep 6666 | wc -l
	61

One of them is - big surprise - drivers/netconsole.c

> Second -  my Fedora5 issue:
> It does not understand "nc -u -l -p 6666 < /dev/null &" - shows help topic
> on that

Seems you did not read the documentation either.  Please  reread  the
doc/README.NetConsole  file,  now  from  beginning  to  end,  and pay
special attention when it talsk  about  "some  distributives  (Fedora
Core 5 at least)" - this could be important to your problem.

> So I really doubt this could work in described way.

It can. You just have to do it right.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH, HRB 165235 Munich, CEO: Wolfgang Denk
Office:  Kirchenstr. 5,       D-82194 Groebenzell,            Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
ATTENTION: Despite Any Other Listing of Product Contents Found  Here-
on, the Consumer is Advised That, in Actuality, This Product Consists
Of 99.9999999999% Empty Space.

[U-Boot-Users] UBoot's terminal server

[Ben Warren]

On Mon, 2007-04-23 at 11:52 -0700, vvj wrote:
> Thanks Ben,
> I tried this way - it does not work.
> 
> First - UBoot issue:
> when I enter "setenv stdout nc; setenv stdin nc'", the env var stays the
> same - I can see it from "printenv".
> I changed sources - set stdout and stdin to nc by default and erased env
> var. Loading default values did not help: 
> still I see 
> ...
> In:    serial
> Out:   serial
> Err:   serial
> Net:   Using MAC Address 12:34:56:78:9A:BD
> Hit any key to stop autoboot:  0
> ...
> I searched source code for 6666 or 1a0a (1A0A) - default port - nothing
> found, except ncb.c from tools folder (linux app)
> 
You need to set CONFIG_NETCONSOLE in your board .h file and recompile
U-boot.  This will let you redirect the streams.
> Second -  my Fedora5 issue:
> It does not understand "nc -u -l -p 6666 < /dev/null &" - shows help topic
> on that

There was recently a patch to the README.NetConsole file about using nc
under Fedora Core 5.  I believe you should try it without "-p".  I'm a
Debian/Ubuntu user, so can't really speak from experience.

regards,
Ben

[U-Boot-Users] UBoot's terminal server

[vvj]

Dear Wolfgang,

I searched through latest (Uboot 1.2) doc folder, but did not find kind of
text you mentioned: 
"...some  distributives  (Fedora Core 5 at least)..." 

Also I recompiled Uboot to support NetConsole: I defined 
CONFIG_NETCONSOLE 
CFG_CMD_NET (in CONFIG_COMMANDS, wo it I had compiling errors)
CONFIG_NET_MULTI (wo it I had compiling errors)

The problem is that when I define CONFIG_NET_MULTI, Uboot does not
initialize network at startup -  I cant use tftp or any network related.
When I "run nc" - serial COM port shell dies, but do not see anything on
host (I tried SuSe now)

What are the criteria which defines whether board is capable of netconsole
or not?
What means CONFIG_NET_MULTI and why network stuff - eth_init(bd_t) - does
not launch when it is defined?

I have UBoot 1.1.2 from STlinux.com and 7100mboard

Best regards,

Viktor Volke

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[U-Boot-Users] UBoot's terminal server

[Wolfgang Denk]

In message <10158334.post@talk.nabble.com> you wrote:
> 
> I searched through latest (Uboot 1.2) doc folder, but did not find kind of
> text you mentioned: 
> "...some  distributives  (Fedora Core 5 at least)..." 

U-Boot 1.2.0 is not latest, it is  actually  quite  old.  Please  use
current code (top of tree from git repository).

> I have UBoot 1.1.2 from STlinux.com and 7100mboard

Please contact their support group then. I don't know  which  changes
they might have made.

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH, HRB 165235 Munich, CEO: Wolfgang Denk
Office:  Kirchenstr. 5,       D-82194 Groebenzell,            Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
It is dangerous to be sincere unless you are also stupid.
                                                - George Bernard Shaw