Reading package lists... Done
W: Target Packages (non-free/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target Packages (non-free/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target Translations (non-free/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target Translations (non-free/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target Translations (non-free/i18n/Translation-ru) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target DEP-11 (non-free/dep11/Components-i386.yml) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target DEP-11-icons (non-free/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W:
http://archive.canonical.com/ubuntu/dists/precise/Release.gpg: Signature by key 630239CC130E1A7FD81A27B140976EAF437D05B5 uses weak digest algorithm (SHA1)
W: Target Packages (non-free/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target Packages (non-free/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target Translations (non-free/i18n/Translation-en_US) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target Translations (non-free/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target Translations (non-free/i18n/Translation-ru) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target DEP-11 (non-free/dep11/Components-i386.yml) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4
W: Target DEP-11-icons (non-free/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:53 and /etc/apt/sources.list.d/opera-stable.list:4