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I am trying to install virtual box on Ubuntu 11.10

I tried the procedure given in following link:

But, when I do sudo apt-get update it is showing failed message as follows:

W: Failed to fetch Unable to find expected entry 'contrib/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.

If anyone aware of this bug please help me soon.

Thank you.

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migrated from Feb 18 '12 at 23:20

This question came from our site for professional and enthusiast programmers.

I've just installed VirtualBox 4.1.8 on my Ubuntu 11.10 (desktop), but I've used another way (so, it wont solve your bug, it will just help you to install VB) :

  • Go to Virtual Box Linux Downloads
  • Download the .deb file corresponding to your platform (i386/amd64)
  • Open the .deb. The Software center will start, and will allow you to install VB
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Having same problem. There are many similar reports on the web. sudo apt-get clean did nothing. This is a new distro install - no prior versions of VBox. – Joe Mar 1 '12 at 2:44

It would help if we could see the contents of your source.list?

One thing you could try is sudo apt-get clean

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