Closing as per comment 1.
** Changed in: ubuntu-docs (Ubuntu)
Status: New => Invalid
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W: GPG error: http://wine.budgetdedicated.com jaunty Release: The following
signatures couldn't be verified because the public key is not available:
NO_PUBKEY 58403026387EE263
https://bugs.launchpad.
This isn't really a bug in Ubuntu, it's just an error you're getting
because you didn't add the gpg key after you added the third party
repository for Wine. See http://www.winehq.org/download/deb . Follow the
instructions under "Trusting the WineHQ APT Repository and installing
Wine:"
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W: GPG e
