This is a repost of my HOWTO: Fix GPG errors for bad/deleted keys on UbuntuForums.org

I don't know what I did, but one day I started using Ubuntu and all my public signature keys for downloading software were all deleted.

This error popped up after running System > Administration > Update Manager

W: GPG error: http://archive.canonical.com jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5
W: GPG error: http://download.virtualbox.org jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY DCF9F87B6DFBCBAE
W: GPG error: http://packages.medibuntu.org jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 2EBC26B60C5A2783
W: GPG error: http://archive.ubuntu.com jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5
W: GPG error: http://archive.ubuntu.com jaunty-updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5
W: GPG error: http://archive.getdeb.net jaunty-getdeb-testing Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY A8A515F046D7E7CF
W: GPG error: http://archive.ubuntu.com jaunty-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6E871C4A881574DE
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 28A8205077558DD0
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY D739676F7613768D
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8C851674F96FD737
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY C0B56813051D8B58
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4874D3686E80C6B7
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 60D11217247D1CFF
W: GPG error: http://archive.ubuntu.com jaunty-backports Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5A9A06AEF9CB8DB0
W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 6D975C4791E7EE5E
W: A error occurred during the signature verification. The repository is not updated and the previous index files will be used.GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5A9BF3BB4E5E17B5

W: GPG error: http://ppa.launchpad.net jaunty Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 7FB8BEE0A1F196A8
W: Failed to fetch http://ppa.launchpad.net/chromium-da...jaunty/Release

W: Some index files failed to download, they have been ignored, or old ones used instead.

The fix for this is to re-download the keys using the hexidecimal numbers given in the error (I bolded them above).

NOTE: Your hexadecimal numbers may be different then mine, so make sure to use the hexadecimals numbers in your error, not mine.

Type this command into the terminal (Applications > Accessories > Terminal)

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys #don't actually run this line yet

And then add the hexadecimal numbers to the command (again, these are my keys from my error. Make sure to use your own):

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5 DCF9F87B6DFBCBAE 2EBC26B60C5A2783 A8A515F046D7E7CF 6E871C4A881574DE 28A8205077558DD0 D739676F7613768D 8C851674F96FD737 C0B56813051D8B58 4874D3686E80C6B7 60D11217247D1CFF 5A9A06AEF9CB8DB0 6D975C4791E7EE5E 5A9BF3BB4E5E17B5 7FB8BEE0A1F196A8

The output should look like this:

gpg: requesting key 437D05B5 from hkp server keyserver.ubuntu.com
gpg: requesting key 6DFBCBAE from hkp server keyserver.ubuntu.com
gpg: requesting key 0C5A2783 from hkp server keyserver.ubuntu.com
gpg: requesting key 46D7E7CF from hkp server keyserver.ubuntu.com
gpg: requesting key 881574DE from hkp server keyserver.ubuntu.com
gpg: requesting key 77558DD0 from hkp server keyserver.ubuntu.com
gpg: requesting key 7613768D from hkp server keyserver.ubuntu.com
gpg: requesting key F96FD737 from hkp server keyserver.ubuntu.com
gpg: requesting key 051D8B58 from hkp server keyserver.ubuntu.com
gpg: requesting key 6E80C6B7 from hkp server keyserver.ubuntu.com
gpg: requesting key 247D1CFF from hkp server keyserver.ubuntu.com
gpg: requesting key F9CB8DB0 from hkp server keyserver.ubuntu.com
gpg: requesting key 91E7EE5E from hkp server keyserver.ubuntu.com
gpg: requesting key 4E5E17B5 from hkp server keyserver.ubuntu.com
gpg: requesting key A1F196A8 from hkp server keyserver.ubuntu.com
gpg: key 437D05B5: "Ubuntu Archive Automatic Signing Key " not changed
gpg: key 6DFBCBAE: public key "Sun Microsystems, Inc. (xVM VirtualBox archive signing key) " imported
gpg: key 0C5A2783: public key "Medibuntu Packaging Team " imported
gpg: key 46D7E7CF: public key "GetDeb Archive Automatic Signing Key " imported
gpg: key 881574DE: public key "Launchpad PPA for Bisigi" imported
gpg: key 77558DD0: public key "Launchpad PPA for GNOME Do Core Team" imported
gpg: key 7613768D: public key "Launchpad PPA named vlc for Christoph Korn" imported
gpg: key F96FD737: public key "Launchpad PPA for Paul Gevers" imported
gpg: key 051D8B58: public key "Launchpad PPA for GStreamer developers" imported
gpg: key 6E80C6B7: public key "Launchpad PPA for Banshee Team" imported
gpg: key 247D1CFF: public key "Launchpad PPA for OpenOffice.org Scribblers" imported
gpg: key F9CB8DB0: public key "Launchpad PPA for Ubuntu Wine Team" imported
gpg: key 91E7EE5E: public key "Launchpad PPA for XBMC for Linux" imported
gpg: key 4E5E17B5: public key "Launchpad PPA for chromium-daily" imported
gpg: key A1F196A8: public key "Launchpad PPA for Pidgin Developers" imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 15
gpg: imported: 14 (RSA: 12)
gpg: unchanged: 1

Then you should have no more errors!

My hometown of Peterborough, Ontario has approved a plan to build a chunk of the proposed Parkway expansion (a plan set on hold since the 1950's, with a referendum held in 2003), between Sherbrooke and Parkhill Rd. It was OK'ed by a 9 to 2 vote by our city counsellors and will go into action next summer, finishing in August, 2011. Luckily, this road will stop short of Jackson Park, one of Peterborough's largest and highly valued piece of green space.

The Peterborough Examiner almost jokingly wrote that the town hall meeting spent fifteen minutes disucssing this plan (valued at over $8.5 million in taxpayers money) while discussion of the future of the lawn bowling club took four hours.

Following the maps supplied by beyondtheparkway.org, we can see exactly where this road will be paved,

And overlayed with Google Maps, the road may look like this,

I'm not entirely sure of the environmental impact, but this showcases some of the plant life in the area. An effected citizen at the town hall meeting did raise her voice with concerns of disrupting bird migration in regards to the timing of the construction. Also, the road, will pave over the walkway besides St. Peter's High School and create and traffic and noise in the backyards of hundreds of residences.

As some of you may know, Joanna Newsom is one of my favourite artists and has been for years. She is a harpist from the United States, playing delicate yet complex pieces, slowly mastering her voice and writing long, intricate stories instead of more typical, short and catchy song lyrics. I saw her play in Toronto at the Phoenix Concert Theatre and love this review of her concert.

I would like to share some of her music from her album Have One On Me today. I hope you enjoy and look into purchasing her album.

Baby Birch

'81

Easy

Good Intentions Paving Company

Have One On Me