[U-Boot-Users] what exactly is netconsole

[U-Boot-Users] what exactly is netconsole

[Andrew Wozniak]

Hi,

A recent post mentions that U-Boot now has netconsole features, at least 
on the ocotea PPC440 board. What type of functionality does this 
provide? I did find, on the web, that netconsole is UDP based at is 
typically used as a networked console for kernel debugging.

Does this imply a "one-way" output connection only or does it allow a 
remote connection into the target - similar to telnet.

Our project requires remote network access to U-Boot because the 
deployed the system will not include a serial port.

-andy

[U-Boot-Users] what exactly is netconsole

[Travis Sawyer]

Andy:

On Thu, 2004-08-12 at 14:46, Andrew Wozniak wrote:

> A recent post mentions that U-Boot now has netconsole features, 
> What type of functionality does this 
> provide? 
> 
netconsole pipes stdin or stdout (or both) to a network device

> Does this imply a "one-way" output connection only or does it allow a 
> remote connection into the target - similar to telnet.
> 
Pretty much...

> Our project requires remote network access to U-Boot because the 
> deployed the system will not include a serial port.

The other end is netcat (see u-boot/doc/README.NetConsole for the 
appropriate script)

http://netcat.sourceforge.net/


It sounds like this is what you need for your project.

-travis 

[U-Boot-Users] what exactly is netconsole

[Wolfgang Denk]

Dear Andrew,

in message <411BBB19.4060800@mc.com> you wrote:
> 
> A recent post mentions that U-Boot now has netconsole features, at least 
> on the ocotea PPC440 board. What type of functionality does this 
> provide? I did find, on the web, that netconsole is UDP based at is 
> typically used as a networked console for kernel debugging.

In general it is a good idea to  read  the  available  documentation.
Ideally, you do this BEFORE posting to the mailing list.

May I bother you to have a look at the doc/README.NetConsole file?


> Does this imply a "one-way" output connection only or does it allow a 
> remote connection into the target - similar to telnet.

U-Boot has bidirectional communication over the network, i.  e.  both
stdin   and   stdout  can  be  redirected  (indepoendently!)  to  the
netconsole device.

> Our project requires remote network access to U-Boot because the 
> deployed the system will not include a serial port.

It's ready to use...

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
Philosophy:  A route of many roads leading from nowhere to nothing.
- Ambrose Bierce

[U-Boot-Users] what exactly is netconsole

[Andrew Wozniak]

Wolfgang Denk wrote:
> Dear Andrew,
> 
> in message <411BBB19.4060800@mc.com> you wrote:
> 
>>A recent post mentions that U-Boot now has netconsole features, at least 
>>on the ocotea PPC440 board. What type of functionality does this 
>>provide? I did find, on the web, that netconsole is UDP based at is 
>>typically used as a networked console for kernel debugging.
> 
> In general it is a good idea to  read  the  available  documentation.
> Ideally, you do this BEFORE posting to the mailing list.
> 
> May I bother you to have a look at the doc/README.NetConsole file?

Our work is currently based on the 1.1.1 release. Any plans for an
upcoming release that would include this document, along with netconsole?

In the mean time, I'll try to grab the README from the CVS tree.

>>Does this imply a "one-way" output connection only or does it allow a 
>>remote connection into the target - similar to telnet.
> 
> U-Boot has bidirectional communication over the network, i.  e.  both
> stdin   and   stdout  can  be  redirected  (indepoendently!)  to  the
> netconsole device.
> 
>>Our project requires remote network access to U-Boot because the 
>>deployed the system will not include a serial port.
> 
> It's ready to use...
> 
> Best regards,
> 
> Wolfgang Denk

Thanks again for everyone's response. I have seen the light!

-andy

[U-Boot-Users] what exactly is netconsole

[Wolfgang Denk]

In message <411CC35C.2080104@mc.com> you wrote:
> 
> > May I bother you to have a look at the doc/README.NetConsole file?
> 
> Our work is currently based on the 1.1.1 release. Any plans for an
> upcoming release that would include this document, along with netconsole?

No. Please use the CVS.


Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
miracle:  an  extremely  outstanding  or  unusual  event,  thing,  or
accomplishment.                                - Webster's Dictionary

[U-Boot-Users] what exactly is netconsole

[Daren Hayward]

Dear Wolfgang,

> in message <411BBB19.4060800@mc.com> you wrote:
> > 
> > A recent post mentions that U-Boot now has netconsole 
> features, at least 
> > on the ocotea PPC440 board. What type of functionality does this 
> > provide? I did find, on the web, that netconsole is UDP based at is 
> > typically used as a networked console for kernel debugging.
> 
> In general it is a good idea to  read  the  available  documentation.
> Ideally, you do this BEFORE posting to the mailing list.
> 
> May I bother you to have a look at the doc/README.NetConsole file?

I would if it existed but is not in the current version 1.1.1 release of
U-Boot!

> 
> > Does this imply a "one-way" output connection only or does 
> it allow a 
> > remote connection into the target - similar to telnet.
> 
> U-Boot has bidirectional communication over the network, i.  e.  both
> stdin   and   stdout  can  be  redirected  (indepoendently!)  to  the
> netconsole device.
> 
> > Our project requires remote network access to U-Boot because the 
> > deployed the system will not include a serial port.
> 
> It's ready to use...

I look forward to its release :)

Thanks

Daren Hayward

[U-Boot-Users] what exactly is netconsole

[Wolfgang Denk]

Dear Daren,

in message <C18BA5DDB58DD511BD0700C0DF0DD4502941AD@NTSERVER4> you wrote:
> 
> > May I bother you to have a look at the doc/README.NetConsole file?
> 
> I would if it existed but is not in the current version 1.1.1 release of
> U-Boot!

You got to learn what "current" means, and what's the difference bet-
ween  version  and  release.  U-Boot-1.1.1  is  the  latest   offical
_release_ of U-Boot, but NOT the current version. The current version
is the top of tree on the CVS server.

> I look forward to its release :)

You may have to wait a  couple  of  weeks  or  even  months  for  the
_release_.

Best regards,

Wolfgang Denk

-- 
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd at denx.de
Either one of us, by himself, is expendable.  Both of us are not.
	-- Kirk, "The Devil in the Dark", stardate 3196.1