Debian Update source Error and "There is no public key available" workaround

In general, we buy and open the Linux VPS host, login ssh first need to do is to update the current server's source installation package, so that you can ensure that the latest security patches on the server, and in the compilation of software to ensure that the latest version of the software. Today, Mr. Chiang. An error cannot be updated when the update source is updated in the DEBIAN6 system.

First, Debian update source Error tips

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w:failed to fetch http://http.debian.net/debian/dists/squeeze/main/binary-i386/Packages.gz 404 Not Found [IP: 149.20.37.36 80] E:some index files failed to download, they have been, or old ignored ones.

This problem should be caused by the server not getting the files from the Debian update package, and our solution is to update the installation source package for the server.

Second, Debian update source installation package

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/etc/apt/sources.list

The contents of this file:

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Deb Http://mirrors.aliyun.com/debian wheezy main contrib non-free Deb-src Http://mirrors.aliyun.com/debian wheezy m Ain contrib Non-free Deb Http://mirrors.aliyun.com/debian wheezy-updates main contrib non-free Deb-src Http://mirrors.aliyun.com/debian wheezy-updates main contrib non-free Deb Http://mirrors.aliyun.com/debian-secu rity wheezy/updates main contrib non-free Deb-src http://mirrors.aliyun.com/debian-security wheezy/updates Main Contrib Non-free

Here we will update the original source into a Aliyun package. After the update is saved, we then execute Apt-get update-y, which is generally not a problem.

Third, resolve there is no public key available error

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W:there is no public key available for the following key ids:7638d0442b90d010 W:there is no public key available for the following key ids:7638d0442b90d010 W:there is no public key available for the following key ids:9d6d8f6bc857c906

But, old Chiang. After updating the source, an error occurred while performing the upgrade command.

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Apt-key adv--recv-keys--keyserver keyserver.ubuntu.com 7638d0442b90d010 Apt-key adv--recv-keys--keyserver keyserver.ubuntu.com 7638d0442b90d010 Apt-key adv--recv-keys--keyserver keyserver.ubuntu.com 9d6d8f6bc857c906

According to our server error ID prompts, we perform the update key command 3 respectively.

Iv. Execute the UPDATE command

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Apt-get update-y

Finally, when we rerun the update command, there is no problem with the update source.