I was using my computer normally until I noticed something wasn't right and I rebooted it. Then I couldn't browse webs with flash with chrome, couldn't load an HTML5 video from youtube. When I try to open VLC it says:

martin@martin-HP:~$ vlc
VLC media player 2.2.2 Weatherwax (revision 2.2.2-0-g6259d80)
[00000000016dd028] pulse audio output error: PulseAudio server connection failure: Connection refused

And sound doesn't work.

When I try to update apt-get:

** (appstreamcli:2530): WARNING **: No origin found for file fr.archive.ubuntu.com_ubuntu_dists_xenial-updates_universe_dep11_Components-amd64.yml.gz
Segmentation fault (core dumped)
Reading package lists... Error!
E: Failed to fetch store:/var/lib/apt/lists/partial/fr.archive.ubuntu.com_ubuntu_dists_xenial_main_dep11_Components-amd64.yml.gz  Hash Sum mismatch
E: Failed to fetch store:/var/lib/apt/lists/partial/fr.archive.ubuntu.com_ubuntu_dists_xenial-updates_main_dep11_Components-amd64.yml.gz  Hash Sum mismatch
E: Some index files failed to download. They have been ignored, or old ones used instead.
E: Problem executing scripts APT::Update::Post-Invoke-Success 'if /usr/bin/test -w /var/cache/app-info -a -e /usr/bin/appstreamcli; then appstreamcli refresh > /dev/null; fi'
E: Sub-process returned an error code
E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/fr.archive.ubuntu.com_ubuntu_dists_xenial_main_binary-amd64_Packages
E: The package lists or status file could not be parsed or opened.
Reading package lists... Error!
E: Encountered a section with no Package: header
E: Problem with MergeList /var/lib/apt/lists/fr.archive.ubuntu.com_ubuntu_dists_xenial_main_binary-amd64_Packages
E: The package lists or status file could not be parsed or opened.

It looks like a hardware problem but the Windows installation works just fine. I suspect it has something to do with the filesystem, but I don't know how to verify it.


  • Try to change the Download Server to Main Server from Software & Updates and then run sudo apt-get update again and after this sudo apt-get install -f. – Thanos Apostolou Jun 19 '16 at 23:33

I know this is a bit old, but I got the same error with apt-get on Ubuntu GNOME 16.04.1 LTS. I found an old forum post that seemed to resolve the apt issues for me. Here are the steps it recommended:

sudo -i
apt-get clean
cd /var/lib/apt
mv lists lists.old
mkdir -p lists/partial
apt-get clean
apt-get update
  • That works. Also I would suggest using rm instead of the move. sudo; cd /var/lib/apt; rm -rf lists; mkdir -p lists/partial; apt-get clean; apt-get update; exit. As a side note, this clears the cache used by apt to avoid having to re-download everything each time you run apt. But they will save whatever appears in the output of a "wget", in my case that was an HTTP 302 error! – Alexis Wilke Dec 4 '16 at 21:42

You verify it by:

sudo fsck /dev/sdxx

It is best to run this in a live cd/usb. Never run it on /dev/sdxx. It will destroy your system. If you can't get a live cd/usb, use recovery mode and drop to a root shell (NOT RECOMMENDED).

  • Please add that you should never run it from within the system which uses the /dev/sdxx (I did it once and, then got some errors and destroyed my hole system). Only from live cd/usb or from Advanced Options for Ubuntu->recovery mode at the grub menu. – Thanos Apostolou Jun 19 '16 at 23:31
  • Added those things. – fosslinux Jun 20 '16 at 0:00

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