topic how to redirect all kernel msgs to a separate vc ? in Operating System - Linux

how to redirect all kernel msgs to a separate vc ?

Martin Bezemer — Wed, 29 May 2002 19:52:08 GMT

Hello world! ;-)
I would like to have all the kernel messages appear on a separate virtual console. I would like to be able to switch to that console using alt-F12, as I will not run X on the boxes.
I am running mandrake 7.0 and am setting up a http and a mail/news server and I am tired of 'tail -f messages'.
Thanks in advance from another newbie.

Re: how to redirect all kernel msgs to a separate vc ?

Mark Fenton — Wed, 29 May 2002 22:19:12 GMT

Martin,

Don't know why you'd need to use F12 in particular, but check out Bastille -- they log to consoles (one for kernel messages, one for /var/messages)

If you want to poke and prod, look at the config file for syslogd and edit it to go to your console device (on whichever virtual console) in addition to the log file by inserting a line like:

kern.* /dev/tty12

(you need to create the tty first if it doesn't already exist)

hth
Mark

Re: how to redirect all kernel msgs to a separate vc ?

Martin Bezemer — Thu, 30 May 2002 09:46:36 GMT

ok, and where do I activate console /dev/tty12 under key alt-F12 ?
Currently I only have 1 thru 6 under the keys alt-F1 thru alt-F6 resp.
Oh, btw., I have smoothwall on my dedicated firewall machine and with alt-F12 I can quickly view the messages s[t|c]reaming past... I thought it A Good Idea (tm) to have alt-F12 configured to do the same on every box.

Thanks again from the newbie in town...

Re: how to redirect all kernel msgs to a separate vc ?

Mark Fenton — Thu, 30 May 2002 20:11:39 GMT

Martin,

The file /etc/inittab handles setup of tty's,
To add tty12 to your list, just add a line to /etc/inittab to associate f12 with tty12 like so:
12:2345:: /dev/tty12

if you want to offer login as a possibility for this tty, can add the other fields as per the previous entries.

Hope this helps.

Mark