packages cannot be authenticated

[Sthu Deus]

Good day.

I think after

$ sudo apt-get update

i have got a message on

$ sudo -t stable apt-get upgrade

stating that some packages can not be authenticated.
Before - all was all right: i was updating and upgrading - no problems, but now I have the problem.

I have tried

$ sudo apt-get -t stable install debian-archive-keyring

it states that it is up to date.

$ sudo apt-key update

no any key changed.

How I can fix it? Thank You for Your time.


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[Γιώργος Πάλλας]

Sthu Deus wrote:

> Good day.
>
> I think after
>
> $ sudo apt-get update
>
> i have got a message on
>
> $ sudo -t stable apt-get upgrade
>
> stating that some packages can not be authenticated.
> Before - all was all right: i was updating and upgrading - no problems, but now I have the problem.
>  

Sometimes this is caused by something transferred wrongly to your pc, or
even worse to the mirror you're using. Try again tomorrow.