I am a 12.04 user and was trying to update my Ubuntu using Update Manager. But an error message of "Failed to download repository information" appeared.
W: Failed to fetch http://www.remastersys.com/ubuntu/dists/precise/main/binary-i386/Packages 404 Not Found E: Some index files failed to download. They have been ignored, or old ones used instead.
Using the 'search' feature and Google, I found three solutions for problem similar with mine which are: (1) I changed the download source to the main server; (2) I tried to restart my internet connection; (3) I use 'apt-get autoclean'; (4) I deleted all files in var/lib/apt/lists. And none of above worked with me.
Actually I have experienced similar problem with different application before, but solution (3) & (4) made the download runs smoothly again, but not this time. So, can anyone shed some light about this, please? Thanks.