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

Previous Next

Full log

Message #32 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 17:25:07 +0100

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

> Oops, didn't see /var/log/shepherd.log - but I think it should just
> use syslog for that - and it's possible to use syslog for that by
> writing to /dev/kmsg .
>
> Does the Hurd with /dev/kmsg ?

It doesn’t have /dev/kmsg, but it has /dev/klog:

--8<---------------cut here---------------start------------->8---
ludo <at> darnassus:~$ ls -l /dev/klog 
crw-rw---- 1 root root 0, 0 Jul 16  2015 /dev/klog
ludo <at> darnassus:~$ showtrans /dev/klog 
/hurd/streamio kmsg
--8<---------------cut here---------------end--------------->8---

> How do they solve early boot logging ?

GNU Mach has a special “console” device that early boot processes can
open and write too, as in:

  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.

Ludo’.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.