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Original Question

I had a problem as follows:

W:Failed to fetch http://in.archive.ubuntu.com/ubuntu/dists/trusty/Release  Unable to find expected entry 'restricted/source/Sources' in Release file (Wrong sources.list entry or malformed file)
, E:Some index files failed to download. They have been ignored, or old ones used instead.

Then I found this answer. Followed the steps:

sudo -i
echo "deb http://archive.ubuntu.com/ubuntu trusty main universe restricted multiverse" > /etc/apt/sources.list

then executed sudo apt-get update and found the problem:

Ign http://archive.ubuntu.com trusty InRelease
Get:1 http://archive.ubuntu.com trusty Release.gpg [72 B]
Get:2 http://archive.ubuntu.com trusty Release [11.9 kB]
Get:3 http://archive.ubuntu.com trusty/main i386 Packages [14 B]
Fetched 12.0 kB in 0s (22.7 kB/s)
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/trusty/Release  Unable to find expected entry 'universe/binary-i386/Packages' in Release file (Wrong sources.list entry or malformed file)

E: Some index files failed to download. They have been ignored, or old ones used instead.

and I found enter image description here

Please tell me how to solve it ?

Update after Neil's answer:

Following problem occurs

enter image description here

Community
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Soumyadip Das
  • 183

1 Answers1

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You have to remove the corrupted source file and add it back with software-properties-gtk Do this by pressing pressing Ctrl+Alt +T 

sudo rm -f /etc/apt/*
sudo rm -f /etc/apt/sources.list.d/*
sudo rm -f /etc/apt/apt.conf.d/*

Then run 

sudo software-properties-gtk

Tick the boxes, change the server to US or to any other server of your choice, then click close.

enter image description here

enter image description here

Then click reload.

Wait for it to finish then run:

sudo apt-get update
Neil
  • 4,585