Package Manager & Update Manager problems

[teriyaki-89]

did the commands above the problem still persists.
my ubuntu is under the proxy

W: GPG error: http://archive.ubuntu.com precise-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: GPG error: http://archive.ubuntu.com precise-backports Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: GPG error: http://archive.ubuntu.com precise-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: Failed to fetch http://archive.canonical.com/ubuntu/...amd64/Packages 404 Not Found

I imported key and tried to update this like apt-gey update, but still no luck

[isantop]

did the commands above the problem still persists.
my ubuntu is under the proxy

W: GPG error: http://archive.ubuntu.com precise-updates Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: GPG error: http://archive.ubuntu.com precise-backports Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: GPG error: http://archive.ubuntu.com precise-security Release: The following signatures were invalid: BADSIG 40976EAF437D05B5 Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>
W: Failed to fetch http://archive.canonical.com/ubuntu/...amd64/Packages 404 Not Found

I imported key and tried to update this like apt-gey update, but still no luck

Try this:

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 437D05B5

[teriyaki-89]

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 437D05B5
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.UE5RXMpNlQ --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-keys 437D05B5
gpg: requesting key 437D05B5 from hkp server keyserver.ubuntu.com
gpg: key 437D05B5: "Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>" not changed
gpg: Total number processed: 1
gpg: unchanged: 1

after apt-get update the same error

[isantop]

sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 437D05B5
Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /tmp/tmp.UE5RXMpNlQ --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv-keys 437D05B5
gpg: requesting key 437D05B5 from hkp server keyserver.ubuntu.com
gpg: key 437D05B5: "Ubuntu Archive Automatic Signing Key <ftpmaster@ubuntu.com>" not changed
gpg: Total number processed: 1
gpg: unchanged: 1

after apt-get update the same error

I think the problem you're seeing is related to the proxy you're using. Can you try it without the proxy?

[teriyaki-89]

I think the problem you're seeing is related to the proxy you're using. Can you try it without the proxy?

Yes the problem was because of proxy. Why can't ubuntu's apt work with proxy?

[isantop]

Yes the problem was because of proxy. Why can't ubuntu's apt work with proxy?

I would actually guess that it was because of that specific proxy.

[teriyaki-89]

this is usual proxy on windows 7 called ccproxy
and i can easily browse on web via this

[isantop]

this is usual proxy on windows 7 called ccproxy
and i can easily browse on web via this

Right, but the proxy may not allow connections to the specific servers needed for APT. That wouldn't really be a flaw in APT, but the proxy.

[teriyaki-89]

there are no restrictions on proxy, and i can get all ubuntu servers through proxy, so the error is only on verification with signature
i can send all apt log

[isantop]

there are no restrictions on proxy, and i can get all ubuntu servers through proxy, so the error is only on verification with signature
i can send all apt log

The proxy doesn't support all of the services that APT requires (at least those related to verification). Otherwise, you wouldn't be able to use it when you weren't behind the proxy.