Here's short guide on how to use QEMU.
sudo aptitude install qemu
qemu-img create -f qcow2 hdd.qcow2 10G
qemu-system-x86_64 -m 512M -cdrom trisquel_6.0_amd64.iso hdd.qcow2
There are three steps above.
First we install QEMU by the package called qemu.
Second we create an disk image file, which will be used by QEMU as a virtual
hard disk. The image file will be in qcow2 format (-f qcow2), will be named
"hdd.qcow2" and will provide 10 gigabytes of virtual disk space.
Third we run a virtual machine. The virtual machine will have 512 magabytes
of RAM (-m 512M). It will have a Trisquel 6.0 installation disk loaded
(-cdrom trisquel_6.0_amd64.iso). It will also have a hard disk (hdd.qcow2).
That's the basics. You should keep in mind that some CPUs have special
vitalization functions, that are used for QEMU. If you don't have them, then
QEMU will complain the it could not access KVM kernel module. It will still
run, but it will be suboptimal. This is the case with my computer. QEMU runs
very slow on my computer, but runs good on other computers.
grep -E '(vmx|svm)' /proc/cpuinfo
Run the above to check if your computer has the needed vitalization
functions. If it doesn't display anything, then it doesn't have those
functions.
