https://www.gentoo.org/downloads/signatures/ The manual should be more fool-proof. The manual instructs me to do: $ gpg --keyserver hkps.pool.sks-keyservers.net --recv-keys 0xBB572E0E2D182910 gpg: keyserver receive failed: Address family not supported by protocol $ After some poking around I found I could better use a different server then the one from Gentoo ;-) . probably it does not some communication protocol or my client does not support it? How to check? anyway, I am just a poor user. $ gpg --keyserver hkp://subkeys.pgp.net --recv-keys 0xBB572E0E2D182910 gpg: keydb_get_keyblock failed: Value not found gpg: key 2D182910: public key "[User ID not found]" imported gpg: 3 marginal(s) needed, 1 complete(s) needed, classic trust model gpg: depth: 0 valid: 2 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 2u gpg: Total number processed: 1 gpg: imported: 1 $ gpg --keyserver hkp://subkeys.pgp.net --recv-keys 0xBB572E0E2D182910 gpg: key 2D182910: "Gentoo Linux Release Engineering (Automated Weekly Release Key) <releng@gentoo.org>" not changed gpg: Total number processed: 1 gpg: unchanged: 1 $ gpg --keyserver http://pgp.mit.edu --recv-keys 0xDB6B8C1F96D8BF6D gpg: key 96D8BF6D: public key "Gentoo Portage Snapshot Signing Key (Automated Signing Key)" imported gpg: 3 marginal(s) needed, 1 complete(s) needed, classic trust model gpg: depth: 0 valid: 2 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 2u gpg: Total number processed: 1 gpg: imported: 1 $ gpg --keyserver http://pgp.mit.edu --recv-keys 0x9E6438C817072058 gpg: key 17072058: "Gentoo Linux Release Engineering (Gentoo Linux Release Signing Key) <releng@gentoo.org>" 34 new signatures gpg: 3 marginal(s) needed, 1 complete(s) needed, classic trust model gpg: depth: 0 valid: 2 signed: 0 trust: 0-, 0q, 0n, 0m, 0f, 2u gpg: Total number processed: 1 gpg: new signatures: 34 $ $ emerge -pv gnupg These are the packages that would be merged, in order: Calculating dependencies... done! [ebuild U ] app-crypt/gnupg-2.1.4::gentoo [2.1.3-r3::gentoo] USE="bzip2 gnutls nls readline usb -doc -ldap (-selinux) -smartcard -static -tools" 4772 KiB Total: 1 package (1 upgrade), Size of downloads: 4772 KiB $
Actually I came to the page from https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Media
One more related to https://wiki.gentoo.org/wiki/Handbook:AMD64/Installation/Media : $ gpg --recv-keys 0xBB572E0E2D182910 gpg: keyserver receive failed: No keyserver available $ Seems I never configured some default servers for gnupg to use.
*** This bug has been marked as a duplicate of bug 551744 ***
