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I am using kubuntu 14.04 lts running on intel core i3,and has amd 6000m radion gpu

When I am going to install cmake or virtual box using terminal I always get this:error

sudo apt-get install cmake
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following extra packages will be installed:
  cmake-data gcc gcc-4.8 libasan0 libatomic1 libc-dev-bin libc6-dev
  libgcc-4.8-dev libitm1 libtsan0 linux-libc-dev manpages-dev
Suggested packages:
  codeblocks eclipse gcc-multilib autoconf automake1.9 libtool flex bison gcc-doc
  gcc-4.8-multilib gcc-4.8-doc gcc-4.8-locales libgcc1-dbg libgomp1-dbg
  libitm1-dbg libatomic1-dbg libasan0-dbg libtsan0-dbg libbacktrace1-dbg
  libquadmath0-dbg glibc-doc
The following NEW packages will be installed:
  cmake cmake-data gcc gcc-4.8 libasan0 libatomic1 libc-dev-bin libc6-dev
  libgcc-4.8-dev libitm1 libtsan0 linux-libc-dev manpages-dev
0 upgraded, 13 newly installed, 0 to remove and 0 not upgraded.
Need to get 2,618 kB/14.8 MB of archives.
After this operation, 57.5 MB of additional disk space will be used.
Do you want to continue? [Y/n] y
Media change: please insert the disc labeled
 'Kubuntu 14.04 LTS _Trusty Tahr_ - Release amd64 (20140416.1)'
in the drive '/media/cdrom/' and press enter

I've searched lot on google but cant get satisfactory answer.

I am expecting answer to solve this problem.

Braiam
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Mohit Tank
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1 Answers1

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in order to get an effective answer it would be very helpful to know the following about the computer you're talking about:

  1. is it connected to the Internet? Try curl www.google.com in a terminal emulator and see if you get some HTML in your terminal.
  2. Start a terminal emulator (do it by pressing Ctrl + Alt + t). Type awk '!/^#/ {print;}' /etc/apt/sources.list and hit the enter key. Edit your question above and add the output of the command you've just run.
Lorra
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