source.list 中的重复条目有多糟糕？

Question

什么是sources.list？它像“注册”吗？

保持“清洁”有多重要？

当我做

sudo apt-get update

要显示的最后几行是这些：

W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ raring/partner amd64 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_raring_partner_binary-amd64_Packages)
W: Duplicate sources.list entry http://archive.canonical.com/ubuntu/ raring/partner i386 Packages (/var/lib/apt/lists/archive.canonical.com_ubuntu_dists_raring_partner_binary-i386_Packages)
W: You may want to run apt-get update to correct these problems

我需要消除这些吗？

如果是这样，我是否只需找到该文件，将其备份，然后使用 gedit 进行编辑？

为埃里克编辑：

/etc/apt/sources.list:## 'partner' repository.
/etc/apt/sources.list:deb http://archive.canonical.com/ubuntu raring partner
/etc/apt/sources.list:# deb-src http://archive.canonical.com/ubuntu raring partner
/etc/apt/sources.list:## 'partner' repository.
/etc/apt/sources.list:deb http://archive.canonical.com/ubuntu raring partner
/etc/apt/sources.list:# deb-src http://archive.canonical.com/ubuntu raring partner
/etc/apt/sources.list.save:## 'partner' repository.
/etc/apt/sources.list.save:deb http://archive.canonical.com/ubuntu raring partner
/etc/apt/sources.list.save:# deb-src http://archive.canonical.com/ubuntu raring partner
/etc/apt/sources.list.save:## 'partner' repository.
/etc/apt/sources.list.save:deb http://archive.canonical.com/ubuntu raring partner
/etc/apt/sources.list.save:# deb-src http://archive.canonical.com/ubuntu raring partner

谢谢埃里克！