*apt-get update*

yaptığımda;


Get:1 http://security.debian.org lenny/updates Release.gpg [835B]
Hit http://security.debian.org lenny/updates Release
Err http://security.debian.org lenny/updates Release

Get:2 http://security.debian.org lenny/updates Release [40.8kB]
Hit http://http.us.debian.org lenny Release.gpg
Ign http://security.debian.org lenny/updates Release
Ign http://security.debian.org lenny/updates/main Packages/DiffIndex
Hit http://volatile.debian.org lenny/volatile Release.gpg
Hit http://http.us.debian.org lenny Release
Ign http://security.debian.org lenny/updates/contrib Packages/DiffIndex
Ign http://security.debian.org lenny/updates/main Sources/DiffIndex
Ign http://security.debian.org lenny/updates/contrib Sources/DiffIndex
Hit http://security.debian.org lenny/updates/main Packages
Hit http://volatile.debian.org lenny/volatile Release
Hit http://security.debian.org lenny/updates/contrib Packages
Hit http://security.debian.org lenny/updates/main Sources
Ign http://http.us.debian.org lenny/main Packages/DiffIndex
Hit http://security.debian.org lenny/updates/contrib Sources
Ign http://volatile.debian.org lenny/volatile/main Packages/DiffIndex
Ign http://http.us.debian.org lenny/contrib Packages/DiffIndex
Ign http://http.us.debian.org lenny/non-free Packages/DiffIndex
Ign http://http.us.debian.org lenny/main Sources/DiffIndex
Ign http://http.us.debian.org lenny/contrib Sources/DiffIndex
Ign http://http.us.debian.org lenny/non-free Sources/DiffIndex
Ign http://volatile.debian.org lenny/volatile/contrib Packages/DiffIndex
Ign http://volatile.debian.org lenny/volatile/non-free Packages/DiffIndex
Hit http://volatile.debian.org lenny/volatile/main Packages
Hit http://http.us.debian.org lenny/main Packages
Hit http://http.us.debian.org lenny/contrib Packages
Hit http://http.us.debian.org lenny/non-free Packages
Hit http://http.us.debian.org lenny/main Sources
Hit http://http.us.debian.org lenny/contrib Sources
Hit http://volatile.debian.org lenny/volatile/contrib Packages
Hit http://http.us.debian.org lenny/non-free Sources
Hit http://volatile.debian.org lenny/volatile/non-free Packages
Fetched 41.6kB in 0s (62.7kB/s)
Reading package lists... Done
*W: GPG error: http://security.debian.org lenny/updates Release: The
following signatures couldn't be verified because the public key is not
available: NO_PUBKEY AED4B06F473041FA
W: You may want to run apt-get update to correct these problems*

hatası le karşılaşmaktayım, bu problem *sources.list* listemin değişmesi
gerektiği anlamına mı gelmektedir acaba?
Çözümü tam olarak nedir?

Teşekkür ederim, herkese selamlar.
Ayhan DELİCAN


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