Mailinglist Archive: opensuse (4570 mails)

[Carl William Spitzer IV <cwsiv@xxxxxxxxxxxxx>]

On Mon, 2005-10-31 at 21:19 +0100, Carlos E. R. wrote:
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> 
> The Sunday 2005-10-30 at 23:17 -0700, Tim Hanson wrote:
> 
> > Does anyone know of a utility to manipulate the system speaker?  I am building 
> > a pc that will be "storage only," a bunch of drives, headless, no gui, 
> > accessible only with ssh from my desktop computer or the main server.
> > 
> > What I need is a utility I can put last in the boot sequence, so I know the 
> > thing is booted and I can login.
> 
> Unfortunately, in linux the speaker is associated with terminals. If a 
> script has no terminal, it can not beep; for example, cron jobs. Time ago, 
> I heard of a project to produce sound from the system speaker, but I 
> didn't get around to test it; but I think that is what you need.
> 
> [...]
> 
> I just found a "beep" program that can beep from a cron job, but only as 
> root (as user it gets a "Could not open /dev/console for writing" error). 
> Ah, it is documented:
> 
>   What this means is that root can always make beep work (to the best of 
>   my knowledge!), and that any local user can make beep work, BUT a 
>   non-root remote user cannot use beep in it's natural state.  What's 
>   worse, an xterm, or other x-session counts, as far as the kernel is 
>   concerned, as 'remote', so beep won't work from a non-priviledged xterm 
>   either.  I had originally chalked this up to a bug, but there's actually 
>   nothing I can do about it, and it really is a Good Thing that the kernel 
>   does things this way.  There is also a solution.
> 
> (he recommends making it suid)
> 
> 
> I think I got it from freshmeat.net, beep-1.2.2.tar.gz... ah, I kept a 
> note:
> 
> http://www.johnath.com/beep/
> http://archives.neohapsis.com/archives/linux/redhat/2002-q2/0002.html
> 
> 
> I just tried beeping with:
> 
>   echo -en "\a" > /dev/console
> 
> that is quite simple, it seems to work.



>  echo -en "\a" > /dev/console
bash: /dev/console: Permission denied
You have new mail in /var/spool/mail/cwsiv

Seems to give me an error plus an unrelated message.
I had downloaded email ten minutes before and hung up the phone line.

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