I get exactly the same problem on two machines on my network. Others
have upgraded with no problems. I have verified there are no third party
repositories listed and also that only the standard two ubuntu GPG
authentication keys are registered.
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Upgrade to 7.10 fails to authenticate
https://bug
** Changed in: update-manager (Ubuntu)
Sourcepackagename: None => update-manager
Status: New => Confirmed
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Upgrade to 7.10 fails to authenticate
https://bugs.launchpad.net/bugs/156190
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