Fix GPG error: Saat Update Repo Ubuntu

Kemarin rencana ingin downgrade php5.3 ke php5.2,

OS yg digunakan pakai Debian6.0.1 dan menggunakan source.list milik ubuntu karmic,
Langsung saja, berikut dibawah ini penampakan errornya.




W: GPG error: ftp://ftp.itb.ac.id karmic Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5W: GPG error: ftp://ftp.itb.ac.id karmic-updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5W: GPG error: ftp://ftp.itb.ac.id karmic-security Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5W: GPG error: ftp://ftp.itb.ac.id karmic-backports Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5W: GPG error: ftp://ftp.itb.ac.id karmic-proposed Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 40976EAF437D05B5

Terlihat diatas muncul message error NO_PUBKEY 40976EAF437D05B5

Solusi, berikut command yang diminta "Key 40976EAF437D05B5"

# apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 40976EAF437D05B5

# apt-get update

Done
Semoga bermanfaat :D .


Sumber
_http://juranktech.com/2011/03/05/fix-gpg-errors-saat-update-ubuntu/ 

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