$ uname -a
Linux cz7329 3.13.0-61-generic #100-Ubuntu SMP Wed Jul 29 11:21:34 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
$ dpkg-query -l '*qemu*' | grep 'ii'
ii ipxe-qemu 1.0.0+git-20131111.c3d1e78-2ubuntu1.1 all PXE boot firmware - ROM images for qemu
ii qemu-keymaps 2.0.0+dfsg-2ubuntu1.16 all QEMU keyboard maps
ii qemu-kvm 2.0.0+dfsg-2ubuntu1.16 amd64 QEMU Full virtualization
ii qemu-system-common 2.0.0+dfsg-2ubuntu1.16 amd64 QEMU full system emulation binaries (common files)
ii qemu-system-x86 2.0.0+dfsg-2ubuntu1.16 amd64 QEMU full system emulation binaries (x86)
ii qemu-utils 2.0.0+dfsg-2ubuntu1.16 amd64 QEMU utilities
$ uname -a
Linux cz7329 3.13.0-61-generic #100-Ubuntu SMP Wed Jul 29 11:21:34 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
$ dpkg-query -l '*qemu*' | grep 'ii' 20131111. c3d1e78- 2ubuntu1. 1 all PXE boot firmware - ROM images for qemu 2ubuntu1. 16 all QEMU keyboard maps 2ubuntu1. 16 amd64 QEMU Full virtualization 2ubuntu1. 16 amd64 QEMU full system emulation binaries (common files) 2ubuntu1. 16 amd64 QEMU full system emulation binaries (x86) 2ubuntu1. 16 amd64 QEMU utilities
ii ipxe-qemu 1.0.0+git-
ii qemu-keymaps 2.0.0+dfsg-
ii qemu-kvm 2.0.0+dfsg-
ii qemu-system-common 2.0.0+dfsg-
ii qemu-system-x86 2.0.0+dfsg-
ii qemu-utils 2.0.0+dfsg-
$ qemu-system-x86_64 --version 2ubuntu1. 16), Copyright (c) 2003-2008 Fabrice Bellard
QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-