I managed to trash my sources.list and its backup file...
could someone please post theirs or point me to where I can find an official list so I can put everything back together please
The Ubuntu sources.list generator, is a web application that can create custom sources.list files for various version of Ubuntu. The sources.list file tells the packaging system where it can look for software to install. The generator can add many additional sources, including those for proprietary software.
I made a lame mistake of deleting some precise .list files from /etc/apt/sources.list.d in backtrack 5 R3. The reason for this was that the KPackageKit notified me about a ubuntu upgrade and the upgrade hanged at the "ilegal" source files, so i deleted them, without making a backup.
Translated: Type "b-src 'is not known on line 2 in the file / etc / apt / sources.list.d / tualatrix-ppa-precise.list, E: Unable to read the list of sources., E: The list of packages or status file could not be parsed or opened. '
intzi@Intzi-Ubuntu:~$ sudo apt-get update
[sudo] password for intzi:
E: Type 'ain' is not known on line 3 in source list /etc/apt/sources.list.d/patrick-dessalle-ppa-precise.list
E: The list of sources could not be read.