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Forum Topic - Redirecing virtual console output (devc-ditto):

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Wim Hellenthal

04/19/2010 12:47 PM

post52047

Redirecing virtual console output (devc-ditto)

I have a few  services (daemons) that I start in virtual console con3 using a script file. It looks as follows:

    reopen /dev/con3
    service_1
    service_2

The services use  the 'procmgr_daemon' function to start into the background and have the PROCMGR_DAEMON_NODEVNULL flag 
set. All output is shown when selecting the virtual console (con3). Now I would like to redirect the outputto a file 
instead. For some reason I can't get it working. I tried to use the devc-ditto utility also started from the script file
:

   devc-ditto /dev/con3 &
   reopen /dev/con3
   service 1
   service 2

from console-1   I  then try to read the output using as a test:
    cat /dev/con3.ditto &

Unfortunatly this does not show anything. However writing directly to con 3 using e.g.  'echo mary had a little... >/dev/con3' works and shows up in console-1. 

So the question is why he service output is not redirected to con1 and the output send directly to con3 using echo is. 

Does anyone have any idea?

Thanks Wim

Pavol Kycina

04/20/2010 5:08 AM

post52094

Re: Redirecing virtual console output (devc-ditto)

Try to put "sleep 1" between devc-ditto command and reopen in your script file

PKY

> I have a few  services (daemons) that I start in virtual console con3 using a 
> script file. It looks as follows:
> 
>     reopen /dev/con3
>     service_1
>     service_2
> 
> The services use  the 'procmgr_daemon' function to start into the background 
> and have the PROCMGR_DAEMON_NODEVNULL flag set. All output is shown when 
> selecting the virtual console (con3). Now I would like to redirect the 
> outputto a file instead. For some reason I can't get it working. I tried to 
> use the devc-ditto utility also started from the script file:
> 
>    devc-ditto /dev/con3 &
>    reopen /dev/con3
>    service 1
>    service 2
> 
> from console-1   I  then try to read the output using as a test:
>     cat /dev/con3.ditto &
> 
> Unfortunatly this does not show anything. However writing directly to con 3 
> using e.g.  'echo mary had a little... >/dev/con3' works and shows up in 
> console-1. 
> 
> So the question is why he service output is not redirected to con1 and the 
> output send directly to con3 using echo is. 
> 
> Does anyone have any idea?
> 
> Thanks Wim

Wim Hellenthal

04/20/2010 7:36 AM

post52099

Re: Redirecing virtual console output (devc-ditto)

Thanks for the suggestion !  The behaviour is definitly changed -:). 

Now all service output is default send to console 1 which is the standard login terminal.  messages written  to /dev/
con3  using echo are  still duplicated by the dev-ditto appl and can be monitored using cat /dev/con3.ditto

Regards
Wim

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