В этом случае нам может помочь программа apt-spy. В дефолтовой конфигурации её нет поэтому установим её из текущего репозитария.
apt-get update apt-get install apt-spy
apt-get update apt-get install apt-spy
... perl: warning: Setting locale failed. perl: warning: Please check that your locale settings: LANGUAGE = (unset), LC_ALL = (unset), LANG = "ru_RU.UTF-8" are supported and installed on your system. perl: warning: Falling back to the standard locale ("C"). locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory Selecting previously deselected package bash-completion. (Reading database ... 23221 files and directories currently installed.) Unpacking bash-completion (from .../bash-completion_1%3a1.3-1ubuntu3_all.deb) ... Processing triggers for man-db ... locale: Cannot set LC_CTYPE to default locale: No such file or directory locale: Cannot set LC_MESSAGES to default locale: No such file or directory locale: Cannot set LC_ALL to default locale: No such file or directory Setting up bash-completion (1:1.3-1ubuntu3) ... ...
W: GPG error: http://ftp.debian.org squeeze Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AED4B06F473041FA NO_PUBKEY 64481591B98321F9
W: GPG error: http://security.debian.org squeeze/updates Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AED4B06F473041FA