[4IP]

apt-get update
Get:1 http://all.repository.backtrack-linux.org revolution Release.gpg [198B]
Ign http://all.repository.backtrack-linux.org/ revolution/main Translation-en_US
Ign http://all.repository.backtrack-linux.org/ revolution/microverse Translation-en_US
Get:2 http://ppa.launchpad.net lucid Release.gpg [316B]
Ign http://ppa.launchpad.net/glasen/intel-driver/ubuntu/ lucid/main Translation-en_US
Hit http://ppa.launchpad.net lucid Release.gpg
Ign http://all.repository.backtrack-linux.org/ revolution/non-free Translation-en_US
Ign http://all.repository.backtrack-linux.org/ revolution/testing Translation-en_US
Get:3 http://all.repository.backtrack-linux.org revolution Release [13.5kB]
Ign http://all.repository.backtrack-linux.org revolution Release
Hit http://all.repository.backtrack-linux.org revolution/main Packages
Ign http://ppa.launchpad.net/matthaeus123/mr...vn/ubuntu/ lucid/main Translation-en_US
Hit http://ppa.launchpad.net lucid Release.gpg
Ign http://ppa.launchpad.net/moonlight-team/pinta/ubuntu/ lucid/main Translation-en_US
Hit http://ppa.launchpad.net lucid Release.gpg
Ign http://ppa.launchpad.net/pidgin-developers/ppa/ubuntu/ lucid/main Translation-en_US
Hit http://ppa.launchpad.net lucid Release.gpg
Ign http://ppa.launchpad.net/tualatrix/ppa/ubuntu/ lucid/main Translation-en_US
Hit http://ppa.launchpad.net lucid Release.gpg
Ign http://ppa.launchpad.net/ubuntu-tweak-te...pa/ubuntu/ lucid/main Translation-en_US
Get:4 http://ppa.launchpad.net lucid Release [14.0kB]
Ign http://ppa.launchpad.net lucid Release
Hit http://all.repository.backtrack-linux.org revolution/microverse Packages
Hit http://all.repository.backtrack-linux.org revolution/non-free Packages
Hit http://all.repository.backtrack-linux.org revolution/testing Packages
Hit http://ppa.launchpad.net lucid Release
Hit http://ppa.launchpad.net lucid Release
Hit http://ppa.launchpad.net lucid Release
Hit http://ppa.launchpad.net lucid Release
Hit http://ppa.launchpad.net lucid Release
Hit http://ppa.launchpad.net lucid/main Packages
Hit http://ppa.launchpad.net lucid/main Packages
Hit http://ppa.launchpad.net lucid/main Packages
Hit http://ppa.launchpad.net lucid/main Packages
Hit http://ppa.launchpad.net lucid/main Packages
Hit http://ppa.launchpad.net lucid/main Packages
Get:5 http://32.repository.backtrack-linux.org revolution Release.gpg [198B]
Ign http://32.repository.backtrack-linux.org/ revolution/main Translation-en_US
Ign http://32.repository.backtrack-linux.org/ revolution/microverse Translation-en_US
Get:6 http://updates.repository.backtrack-linux.org revolution Release.gpg [198B]
Ign http://updates.repository.backtrack-linux.org/ revolution/main Translation-en_US
Ign http://updates.repository.backtrack-linux.org/ revolution/microverse Translation-en_US
Ign http://32.repository.backtrack-linux.org/ revolution/non-free Translation-en_US
Ign http://32.repository.backtrack-linux.org/ revolution/testing Translation-en_US
Get:7 http://32.repository.backtrack-linux.org revolution Release [5,041B]
Ign http://32.repository.backtrack-linux.org revolution Release
Ign http://updates.repository.backtrack-linux.org/ revolution/non-free Translation-en_US
Ign http://updates.repository.backtrack-linux.org/ revolution/testing Translation-en_US
Get:8 http://updates.repository.backtrack-linux.org revolution Release [13.5kB]
Ign http://updates.repository.backtrack-linux.org revolution Release
Hit http://32.repository.backtrack-linux.org revolution/main Packages
Hit http://updates.repository.backtrack-linux.org revolution/main Packages
Hit http://32.repository.backtrack-linux.org revolution/microverse Packages
Hit http://32.repository.backtrack-linux.org revolution/non-free Packages
Hit http://32.repository.backtrack-linux.org revolution/testing Packages
Hit http://updates.repository.backtrack-linux.org revolution/microverse Packages
Hit http://updates.repository.backtrack-linux.org revolution/non-free Packages
Hit http://updates.repository.backtrack-linux.org revolution/testing Packages
Fetched 914B in 6s (136B/s)
Reading package lists... Done
W: GPG error: http://all.repository.backtrack-linux.org revolution Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AB6DA34B475A6B7F
W: GPG error: http://ppa.launchpad.net lucid Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 0F2D1009066ADE1D
W: GPG error: http://32.repository.backtrack-linux.org revolution Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AB6DA34B475A6B7F
W: GPG error: http://updates.repository.backtrack-linux.org revolution Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY AB6DA34B475A6B7F

nah yang dimaksud gpg error itu kenapa min? mohon solusinya min biar engga gini lagi.