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Vitor Mazuco
Asked: 2013-10-10 08:05:41 +0800 CST

Update error in Virtual Box

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When I update my Ubuntu, appear 

W:Failed to fetch http://download.virtualbox.org/virtualbox/debian/dists/lucid/Release  Unable to find expected entry 'non-free/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.

What can I do for fix this error on my Virtual Box?

updates

2 Answers

  1. Best Answer

    Looks like you are using the wrong distribution codename in the sources.list file.

    I personally prefer to have a separate file for each 3rd party repository, you can create one for virtualbox using the following in CLI:

    sudo echo "deb http://download.virtualbox.org/virtualbox/debian `lsb_release -sc` contrib" > /etc/apt/sources.list.d/virtualbox.list

    After creating virtualbox.list, remove or comment out the out-dated line from your sources.list.

    It may look like this => deb http://download.virtualbox.org/virtualbox/debian lucid contrib non-free.

    Once done, update your system sudo apt-get update && apt-get dist-upgrade -y.

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  2. The reason is an invalid entry in /etc/apt/sources.list file. There is no source package in the VirtualBox source repository. Just remove the deb-src line:

    sudo nano /etc/apt/sources.list

    Remove or comment this line:

    deb-src http://download.virtualbox.org/virtualbox/debian lucid non-free

    This should solve the case.

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