repairing gpg errors

[computathug]

As i havent seen anything on this topic i thought i would do a quick little guide on how to fix these errors.

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W: GPG error: http://debian-multimedia.org etch Release: Yhe following signatures couldn't be verified because the public key is not available: NO_PUBKEY 07DC563D1F41M907

If you see an error similar to this you must first fix the package by

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apt-get install debian-archive-keyring

then follow by entering

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gpg --keyserver hkp://wwwkeys.eu.pgp.net --recv-keys 07DC563D1F41M907

the code at the end of the line is the end code of the error ie '07DC563D1F41M907' so use the code corresponding to your own.

Export the key from gpg and add it to your list of trusted keys for apt with apt-key:

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gpg --armor --export 07DC563D1F41B907 | apt-key add -

after this is completed

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apt-get update
apt-get upgrade
apt-get clean

hope this helps anyone else out there with this problem

[bad_brain]

good one...
such errors usually appear when using a non-official repository...like when installing Compiz or media codecs for example, because the official Debian repositories only include open source software..