qemu-system-x86 software package provides QEMU full system emulation binaries (x86), you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install qemu-system-x86
qemu-system-x86 is installed in your system.
Make ensure the qemu-system-x86 package were installed using the commands given below,
$ sudo dpkg-query -l | grep qemu-system-x86 *
You will get with qemu-system-x86 package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Miscellaneous |
| Package | qemu-system-x86 |
| Version | 2.0.0+dfsg-2ubuntu1.30 [amd64, |
| Description | QEMU full system emulation binaries (x86) |
| Sub Section | misc |