这是输出aptitude update：
Ign http://archive.canonical.com natty InRelease
Ign http://extras.ubuntu.com natty InRelease
Ign http://dl.google.com stable InRelease
Ign http://security.ubuntu.com natty-security InRelease
Hit http://deb.torproject.org natty InRelease
Get:1 http://dl.google.com stable Release.gpg [198 B]
Ign http://us.archive.ubuntu.com natty InRelease
Ign http://us.archive.ubuntu.com natty-updates InRelease
Hit http://archive.canonical.com natty Release.gpg
Hit http://extras.ubuntu.com natty Release.gpg
Hit http://security.ubuntu.com natty-security Release.gpg
Hit http://us.archive.ubuntu.com natty Release.gpg
Hit http://security.ubuntu.com natty-security Release
Hit http://archive.canonical.com natty Release
Hit http://extras.ubuntu.com natty Release
Get:2 http://dl.google.com stable Release [1,338 B]
Hit http://us.archive.ubuntu.com natty-updates Release.gpg
Hit http://security.ubuntu.com natty-security/main Sources …在 EC2 Ubuntu Lucid 实例上遇到问题，如果我运行(sudo) apt-get update所有软件包Translation-en_US都将被忽略。
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid Release.gpg
Ign http://ap-southeast-2.ec2.archive.ubuntu.com/ubuntu/ lucid/main Translation-en_US
Ign http://ap-southeast-2.ec2.archive.ubuntu.com/ubuntu/ lucid/universe Translation-en_US
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid-updates Release.gpg
Ign http://ap-southeast-2.ec2.archive.ubuntu.com/ubuntu/ lucid-updates/main Translation-en_US
Ign http://ap-southeast-2.ec2.archive.ubuntu.com/ubuntu/ lucid-updates/universe Translation-en_US
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid Release
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid-updates Release
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid/main Packages
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid/universe Packages
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid/main Sources
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid/universe Sources
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid-updates/main Packages
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid-updates/universe Packages
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid-updates/main Sources
Hit http://ap-southeast-2.ec2.archive.ubuntu.com lucid-updates/universe Sources
Hit http://security.ubuntu.com lucid-security Release.gpg
Hit …