Distro: elementary OS Freya 0.3 (no modifications apart from installing bumblebee and proprietary video drivers)
Laptop: MSI ghost GS60 2PC
I have, for about the last month, been getting messages stating that I am only able to perform partial upgrades when updates have been released.
Everything was still working fine so I didn't bother to look much further into it. The packages that couldn't be update seemed to be to do with kernel headers and things for 14.10 which I didn't think was relevant to Freya. (I know I maybe completely wrong about this, please feel free to tell me so, but politely please. I am a sensitive soul.)
This afternoon I returned home and brought my laptop out of standby. In the taskbar I noticed there was, what appeared to be, a busy icon a la Skype. I clicked it wondering what it might be and was greeted by a message stating that the package lists or status file could not be parsed or opened.
I tried to run apt-get update, to which I was informed that there was a 404 on one of my repositories (Lightzone). This didn't seem relevant. I then ran apt-get upgrade and was greeted with this output:
Reading package lists... Error!
W: Duplicate sources.list entry http://dl.google.com/linux/chrome/deb/stable/main amd64 Packages (/var/lib/apt/lists/dl.google.com_linux_chrome_deb_dists_stable_main_binary-amd64_Packages)
W: Duplicate sources.list entry http://dl.google.com/linux/chrome/deb/stable/main i386 Packages (/var/lib/apt/lists/dl.google.com_linux_chrome_deb_dists_stable_main_binary-i386_Packages)
E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/repo.steampowered.com_steam_dists_precise_steam_i18n_Translation-en
E: The package lists or status file could not be parsed or opened.
I did a little bit of searching around on the net using a well known search engine and found a thread on the Ubuntu forums. The thread stated I could use the software centre to resolve my issue.
Hurrah! Alas on trying to run Software Centre it hangs and immediately force quits. I can see that some of the problems are to do with my source.list file but I am a little nervous removing entries from this.
Any guidance would be much appreciated.