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View Full Version : [ubuntu] Strange Warning when installing software through Add/remove+Synpatic



Andy06
June 29th, 2009, 04:02 PM
One one the computers I installed ubuntu on, its giving these warning every time someone tries to install software from either add/remove or synaptic.

The text of the warning says:

"You are about to install software that can't be authenticated! Doing this could allow a malicious individual to damage or take control of your system."

What is that all about?

philinux
June 29th, 2009, 04:05 PM
Software from unofficial repository. Check your sources list.

halitech
June 29th, 2009, 04:06 PM
sounds like you have added a new repo that is not supported. Whats the output of

cat /etc/apt/sources.list

Andy06
June 29th, 2009, 07:47 PM
The main, universe, restricted and multiverse repos are enabled but no other third party ones. Those 4 are reliable right.

Moreover, there was no change of sources between when the warning wasn't there and when the warning was there.

Output of:

cat /etc/apt/sources.list


# deb cdrom:[Ubuntu 9.04 _Jaunty Jackalope_ - Release i386 (20090420.1)]/ jaunty main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://archive.ubuntu.com/ubuntu/ jaunty main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu/ jaunty-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu/ jaunty universe
deb http://archive.ubuntu.com/ubuntu/ jaunty-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu/ jaunty multiverse
deb http://archive.ubuntu.com/ubuntu/ jaunty-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb-src http://in.archive.ubuntu.com/ubuntu/ jaunty-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
deb http://archive.canonical.com/ubuntu jaunty partner
# deb-src http://archive.canonical.com/ubuntu jaunty partner

deb http://archive.ubuntu.com/ubuntu/ jaunty-security main restricted
deb http://archive.ubuntu.com/ubuntu/ jaunty-security universe
deb http://archive.ubuntu.com/ubuntu/ jaunty-backports restricted main multiverse universe
deb http://archive.ubuntu.com/ubuntu/ jaunty-security multiverse

Wierdest thing is I disconnected the comp from all networks and then tried installing a previously deselected package (which installs from cache instead of installing again) and it gave that warning again.

Of course, now the warnings have mysteriously gone.