This will create a Qemu formatted virtual hard drive image with a capacity of 3 GB named 'virtual_hard_drive.img' in the current directory. Qemu-img create -f qcow virtual_hard_drive.img 3G To create a new virtual hard drive image, as user, type To automatically load the kqemu kernel module every time your system starts up, add the following line to /boot/nf: We then need to load the kqemu kernel module: Optionally, if you want to build qemu with the qemu-accelerator kernel module, which will drastically increase qemu's performance in terms of x86-on-x86 emulation (if not, skip ahead): Its most popular (and well-developed) use is, however, decidedly x86 emulation.
Qemu is a powerful computer processor emulator that can be used to emulate x86, Sparc, and PowerPC processors, among others.
