I created an ftp server, and used local server, ok, it found the amd, but it searched again for i386. The problem is when I tried to install a software it didn't search for the amd64, but for i386 which is not there.
LANG=C apt-get update Hit ftp://localhost jessie InRelease Get:1 ftp://localhost jessie/main amd64 Packages/DiffIndex Ign ftp://localhost jessie/main amd64 Packages/DiffIndex Get:2 ftp://localhost jessie/contrib amd64 Packages/DiffIndex Ign ftp://localhost jessie/contrib amd64 Packages/DiffIndex Get:3 ftp://localhost jessie/non-free amd64 Packages/DiffIndex .... Get:11 ftp://localhost jessie/main amd64 Packages Get:12 ftp://localhost jessie/contrib amd64 Packages ........ Err ftp://localhost jessie/main i386 Packages Unable to fetch file, server said 'Failed to open file. ' [IP: ::1 21] Get:24 ftp://localhost jessie/contrib i386 Packages Err ftp://localhost jessie/contrib i386 Packages Unable to fetch file, server said 'Failed to open file. ' [IP: ::1 21]