Me contesto a mi mismo.
Se solucion� la cosa actualizando el paquete bash.
Gracias a Gustavo que ley� el post v�a web y me contest� lo siguiente:

----- Forwarded message from Gustavo De Nardin <[EMAIL PROTECTED]>

Date: Wed, 6 Nov 2002 03:15:11 -0200
From: Gustavo De Nardin <[EMAIL PROTECTED]>
User-Agent: Mutt/1.4i
To: [EMAIL PROTECTED]
Subject: Re: Postfix empez� a dar error...

  Hi.

    I had this same problem. Upgrading bash to version 2.05b-5 solved
    it. Must be something to do with the /etc/postfix/post-install
    script...

      I'm answering this because I found your post on
      debian-user-spanish
      (<http://www.geocrawler.com/lists/3/Debian-Linux/247/0/10076380/>)
      while searching for a solution, just in case you haven't solved it
      yet.

      (Sorry about the english answer, but I can't speak spanish enough,
      and
      don't know how easy it is for spanish speakers to understand
      portuguese.)

      cya

      ----- End forwarded message -----
      
On Mon, Nov 04, 2002 a las 05:24:35PM -0500, [EMAIL PROTECTED] wrote:
> Hola, amigos.
> 
> Estoy corriendo Debian Unstable.
> 
> En alg�n momento, al hacer apt-get update; apt-get upgrade, se actualiz� el
> paquete postfix y empez� a dar errores al querer levantar el servicio:
> 
> gabriel:/home/gabriel# /etc/init.d/postfix start
> Starting mail transport agent: Postfix/etc/postfix/post-install: Error:
> Usage: /etc/postfix/post-install [name=value] command
>     create-missing          Create missing queue directories.
>     upgrade-source          When installing or upgrading from source code.
>     upgrade-package         When installing or upgrading from pre-built
> package.
>     first-install-reminder  Remind of mandatory first-time configuration
> steps.
>     name=value              Specify an installation parameter.
> .
> gabriel:/home/gabriel# /etc/init.d/postfix check
> /etc/postfix/post-install: Error: Usage: /etc/postfix/post-install
> [name=value] command
>     create-missing          Create missing queue directories.
>     upgrade-source          When installing or upgrading from source code.
>     upgrade-package         When installing or upgrading from pre-built
> package.
>     first-install-reminder  Remind of mandatory first-time configuration
> steps.
>     name=value              Specify an installation parameter.
> postfix/postfix-script: warning: unable to create missing queue directories
> 
> No se qu� es ese mensaje de error. �A alguien le ha pasado lo mismo?
> 
> Gracias desde ya,
> Arlequ�n

-- 
Arlequ�n                                                  _o)
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