non-authenticated sources

Kevin O'Gorman kogorman at
Tue Mar 27 03:39:54 UTC 2012

On Mon, Mar 26, 2012 at 7:11 PM, Sam Sebastian <sebastiansam55 at> wrote:
> I know that this is a really belated response and that you have probaly
> already fixed it but if I remeber correctly the command to update the "keys"
> is something like "sudo apt-key update" I don't think that's it and I'm away
> from my ubuntu computer right now so just google something along those lines
> and you will find the command
> On Mar 15, 2012 6:26 AM, "Lila M" <mech.loulou at> wrote:
>> hi,
>> while trying to install some software in ubuntu, I sometimes found myself
>> confronted with a warning saying:
>> "
>> Requires installation of untrusted packages: The action would require the
>> installation of packages from not authenticated sources."
>> is there any risk from installing such software although it comes with
>> ubuntu (i.e. it is available in the Ubuntu Software Center, but it is not
>> yet installed)
>> thanks
>> Lila

Top-poster Sam is pretty close.  Check it out by just entering "sudo
apt-key" and the usage message tells you most of what you need to

Kevin O'Gorman, PhD

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