Linux On My Samsung

hey, after executing sudo apt-get install --allow-unauthenticated voria-ppa-keyring i got this message: voria-ppa-keyring is the newest version. and after sudo apt-get update is still got OK http://packages.medibuntu.org karmic Release.gpg Ign http://packages.medibuntu.org karmic/free Translation-de...

hi, first, thanks for this wonderful scripts...but i have one problem. i add the source like your manual above, but i`m getting the following error message: W: GPG error: http://ppa.launchpad.net karmic Release: The following signatures were invalid: BADSIG 36960FC31E5F36F0 Launchpad PPA for Fortuna...