9

When i try to install or update any packages I get:

Untrusted packages could compromise your system's security. You should only proceed with the installation if you are certain that this is what you want to do.

I strongly suspect this is related to the error i get on update:

$ sudo aptitude update
Get: 1 http://ftp.us.debian.org wheezy InRelease [208 kB]
Get: 2 http://debian.lcs.mit.edu wheezy InRelease [208 kB]
Ign http://ftp.us.debian.org wheezy InRelease
Hit http://ftp.us.debian.org wheezy/main amd64 Packages/DiffIndex
Hit http://ftp.us.debian.org wheezy/contrib amd64 Packages/DiffIndex
Hit http://ftp.us.debian.org wheezy/non-free amd64 Packages/DiffIndex
Hit http://ftp.us.debian.org wheezy/contrib Translation-en
Hit http://ftp.us.debian.org wheezy/main Translation-en
Hit http://ftp.us.debian.org wheezy/non-free Translation-en
Get: 3 http://debian.lcs.mit.edu wheezy-updates InRelease [116 kB]
Ign http://debian.lcs.mit.edu wheezy InRelease
Ign http://debian.lcs.mit.edu wheezy-updates InRelease
Hit http://debian.lcs.mit.edu wheezy/main Sources/DiffIndex
Hit http://debian.lcs.mit.edu wheezy/main amd64 Packages/DiffIndex
Hit http://debian.lcs.mit.edu wheezy/main Translation-en
Ign http://ftp.us.debian.org wheezy/contrib Translation-en_US
Ign http://debian.lcs.mit.edu wheezy-updates/main Sources/DiffIndex
Ign http://debian.lcs.mit.edu wheezy-updates/main amd64 Packages/DiffIndex
Ign http://ftp.us.debian.org wheezy/main Translation-en_US
Ign http://ftp.us.debian.org wheezy/non-free Translation-en_US
Hit http://debian.lcs.mit.edu wheezy-updates/main Sources
Hit http://debian.lcs.mit.edu wheezy-updates/main amd64 Packages
Ign http://debian.lcs.mit.edu wheezy/main Translation-en_US
Ign http://debian.lcs.mit.edu wheezy-updates/main Translation-en_US
Ign http://debian.lcs.mit.edu wheezy-updates/main Translation-en
Fetched 531 kB in 1s (304 kB/s)
W: GPG error: http://ftp.us.debian.org wheezy InRelease: Unknown error executing gpgv
W: GPG error: http://debian.lcs.mit.edu wheezy InRelease: Unknown error executing gpgv
W: GPG error: http://debian.lcs.mit.edu wheezy-updates InRelease: Unknown error executing gpgv

I have tried reinstalling the key ring: sudo aptitude reinstall debian-archive-keyring (which surprisingly doesn't cause a warning).

euluis
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3 Answers3

19

Try this please:

Open a terminal and run the following commands:

sudo apt-get clean
sudo rm -rf /var/lib/apt/lists/*
sudo apt-get clean
sudo apt-get update
Smylers
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APZ
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4

After reading APZ's answer, but wanting to use aptitude I executed with success the following commands:

# clean the obsolete cache
sudo aptitude clean
# update the package information
sudo aptitude update
# install or upgrade the packages
sudo aptitude install <list of packages to upgrade/install>

The error is probably related to obsolete apt cache contents, but the error message I got was a bit different:

WARNING: untrusted versions of the following packages will be installed!

euluis
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2

You seem to be hit by Debian bug #657561. You can try to move problematic /var/lib/apt/lists/*InRelease files and rerun apt-get update.