It seems my /etc/apt/sources.list file only has

deb cdrom:[Linux Mint 17 Qiana - Release amd64 20140624]/ trusty contrib main non-free

It might have got corrupted when I was trying to download pdfedit. When I try to download some software now it says:

This is a major failure of your software management system. Please check for broken packages with synaptic, check the file permissions and correctness of the file '/etc/apt/sources.list' and reload the software information with: 'sudo apt-get update' and 'sudo apt-get install -f'.

  • Try: this post on the Linux Mint Forums – garethTheRed Oct 1 '14 at 7:39
  • @garethTheRed the post has the list for 32 bit and I need for 64 bit. Also, I need for Linux Mint 17 and not Ubuntu. Are they the same? Here is my machine details: Linux indranil-thinkPad-s431 3.13.0-24-generic #47-Ubuntu SMP Fri May 2 23:30:00 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux – user2758050 Oct 1 '14 at 11:41
  • 2
    No, those sources are for mint. The default sources file includes the Ubuntu sources and packages.linuxmint.com. As for 64 vs 32, that's irrelevant for the sources, you use the same and your system chooses the right one. – terdon Oct 1 '14 at 12:36

From my own system, a Linux Mint 17.1 Rebecca, the file /etc/apt/sources.list.d/official-package-repositories.list contains this:

deb http://packages.linuxmint.com rebecca main upstream import 
deb http://extra.linuxmint.com rebecca main
deb http://archive.ubuntu.com/ubuntu trusty main restricted universe multiverse 
deb http://archive.ubuntu.com/ubuntu trusty-updates main restricted universe multiverse
deb http://security.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse 
deb http://archive.canonical.com/ubuntu/ trusty partner

My /etc/apt/sources.list is empty.

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