[EMAIL PROTECTED] wrote:

> Well, I'm happy to follow advice in this matter. Even so, I'm still
> curious about unauthenticated software. What's the rationale in producing
> it?

The warning you saw can happen in two situations:

  - The software was signed, but you don't have the part of the
    key used to validate the signature.
  - The software was not signed (this can happen when you add
    un-offocial deb source to your /etc/apt/sources.list file)

In your case, my guess is that the software was crypto-signed but
that your system didn't have a record of the digital signatures and
hence couldn't authenicate them. More below ..

> >    LANG=
> >    sudo apt-get update
> 
> Well, I did, although I like to know what I'm doing. The sudo etc I
> understand, but what's LANG= please?

Did this then allow you to install the software without having to 
install software that was un-authenticated? If so, then the update
grabbed the the digital signatures.

The 'LANG=' clears the LANG environment variable. For some reason
this helps but I've never seen this myself.

HTH,
Erik
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Erik de Castro Lopo
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Rule 1: Spammers lie.
Rule 2: If a spammer seems to be telling the truth, see Rule #1.
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