[oyster]

Mohon pencerahan dari para sesepuh disini...

root@bt:~# apt-get update
Hit http://ppa.launchpad.net lucid Release.gpg
Ign http://ppa.launchpad.net/glasen/intel-driver/ubuntu/ lucid/main Translation-en_US
Hit http://ppa.launchpad.net lucid Release.gpg
Hit http://updates.repository.backtrack-linux.org revolution Release.gpg
Ign http://updates.repository.backtrack-linux.org/ revolution/main Translation-en_US
Ign http://updates.repository.backtrack-linux.org/ revolution/microverse Translation-en_US
Hit http://all.repository.backtrack-linux.org revolution Release.gpg
Ign http://all.repository.backtrack-linux.org/ revolution/main Translation-en_US
Ign http://all.repository.backtrack-linux.org/ revolution/microverse Translation-en_US
Hit http://32.repository.backtrack-linux.org revolution Release.gpg
Ign http://32.repository.backtrack-linux.org/ revolution/main Translation-en_US
Ign http://32.repository.backtrack-linux.org/ revolution/microverse Translation-en_US
Ign http://ppa.launchpad.net/libreoffice/ppa/ubuntu/ lucid/main Translation-en_US
Ign http://ppa.launchpad.net lucid Release.gpg
Ign http://ppa.launchpad.net/sevenmachines/flash/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
Hit http://ppa.launchpad.net lucid 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
Hit http://updates.repository.backtrack-linux.org revolution Release
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
Hit http://all.repository.backtrack-linux.org revolution Release
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
Hit http://32.repository.backtrack-linux.org revolution Release
Hit http://ppa.launchpad.net lucid Release
Ign http://ppa.launchpad.net lucid Release
Hit http://ppa.launchpad.net lucid Release
Hit http://ppa.launchpad.net lucid Release
Hit http://updates.repository.backtrack-linux.org revolution/main Packages
Hit http://all.repository.backtrack-linux.org revolution/main Packages
Hit http://32.repository.backtrack-linux.org revolution/main Packages
Hit http://ppa.launchpad.net lucid/main 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
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://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
Ign 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
Ign http://ppa.launchpad.net lucid/main Packages
Err http://ppa.launchpad.net lucid/main Packages
404 Not Found
W: Failed to fetch http://ppa.launchpad.net/sevenmachines/f...ackages.gz 404 Not Found

E: Some index files failed to download, they have been ignored, or old ones used instead.
root@bt:~#

maksud dari pesan yang berwarna merah apa ya?, dan bagaimana cara mengatasinya.
terima kasih...