GNU bug report logs - #30464
[PATCH 0/2] Add console-agetty-service.

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Message #38 received at 30464 <at> debbugs.gnu.org (full text, mbox):

From: ludo <at> gnu.org (Ludovic Courtès)
To: Danny Milosavljevic <dannym <at> scratchpost.org>
Cc: 30464 <at> debbugs.gnu.org
Subject: Re: shepherd logging
Date: Sat, 17 Feb 2018 17:57:58 +0100

Danny Milosavljevic <dannym <at> scratchpost.org> skribis:

>>   https://git.savannah.gnu.org/cgit/hurd/hurd.git/tree/startup/startup.c#n731
>> 
>> It’s comparable to /dev/kmsg, but it exists before file system servers
>> are brought up, which is why it doesn’t have an entry in the file
>> system hierarchy.
>
> Huh, so it's just connected to stderr?  That means it should work fine already
> with no changes in shepherd.  Nice!

Indeed!

> Just to be sure, it is possible to read out these messages and log them to a
> file later on, right?

I think what goes to “console” is printed and then forever lost:

  https://git.savannah.gnu.org/cgit/hurd/gnumach.git/tree/device/cons.c

That said, not much should go there since as soon as the root file
system is up, processes can start using /dev/klog.

Ludo’.

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