I got an error when doing aptitude update. I tried #debian dpkg advice but with same error. I also noticed that the http://security.debian.org/debian-security/dists/etch/updates/Release.gpg is empty.
debian:/home/alexandre# gpg --keyserver subkeys.pgp.net --recv-keys 2D230C5F gpg: directory `/root/.gnupg' created gpg: new configuration file `/root/.gnupg/gpg.conf' created gpg: WARNING: options in `/root/.gnupg/gpg.conf' are not yet active during this run gpg: keyring `/root/.gnupg/secring.gpg' created gpg: keyring `/root/.gnupg/pubring.gpg' created gpg: requesting key 2D230C5F from hkp server subkeys.pgp.net gpg: /root/.gnupg/trustdb.gpg: trustdb created gpg: key 2D230C5F: public key "Debian Archive Automatic Signing Key (2006) <[EMAIL PROTECTED]>" imported gpg: no ultimately trusted keys found gpg: Total number processed: 1 gpg: imported: 1 debian:/home/alexandre# gpg --export 084750FC01A6D388A643D869010908312D230C5F | sudo apt-key add - OK debian:/home/alexandre# aptitude update Reading package lists... Done Building dependency tree... Done Reading extended state information Initializing package states... Done Reading task descriptions... Done Building tag database... Done Get:1 http://ftp.fr.debian.org etch Release.gpg [189B] Hit http://ftp.fr.debian.org etch Release Get:2 http://security.debian.org etch/updates Release.gpg Hit http://ftp.fr.debian.org etch/main Packages/DiffIndex Hit http://security.debian.org etch/updates Release Err http://security.debian.org etch/updates Release Hit http://ftp.fr.debian.org etch/non-free Packages/DiffIndex Hit http://ftp.fr.debian.org etch/contrib Packages/DiffIndex Get:3 http://security.debian.org etch/updates Release [24.3kB] Ign http://security.debian.org etch/updates Release Ign http://security.debian.org etch/updates/main Packages/DiffIndex Ign http://security.debian.org etch/updates/non-free Packages/DiffIndex Ign http://security.debian.org etch/updates/contrib Packages/DiffIndex Hit http://security.debian.org etch/updates/main Packages Hit http://security.debian.org etch/updates/non-free Packages Hit http://security.debian.org etch/updates/contrib Packages Fetched 24.3kB in 1s (12.6kB/s) Reading package lists... Done W: GPG error: http://security.debian.org etch/updates Release: Unknown error executing gpgv W: You may want to run apt-get update to correct these problems -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]