Using KQEMU in Ubuntu
QEMU allows you to run virtula images of OS's (like vmware).
KQEMU is a kernel module for qemu, it GREATLY improves QEMU performance.
KQEMU needs to be compiled from source (since it's a kernel module), however we will use module-assistant to greatly simplify this process.
sudo apt-get install module-assistant kqemu-source sudo module-assistant auto-install kqemu
After a kernel upgrade you will need to rerun sudo module-assistant auto-install kqemu
Now. it's installed, however we need to do a few more things:
creating kqemu user & group
sudo addgroup --system kqemu sudo adduser $USER kqemu # this will "update" your group list in your current shell, so you are part of 'kqemu' group right away. newgrp kqemu
Edit UDEV rules
sudo vi /etc/udev/rules.d/60-kqemu.rules
KERNEL=="kqemu", NAME="%k", GROUP="kqemu", MODE="0660" sudo /etc/init.d/udev reload
Load kqemu module now:
manually load kqemu right away
sudo update-modules sudo modprobe kqemu
If you want it to start automatically at boot add this to /etc/modules
Add to /etc/modules
kqemu
Now we can start qemu and it should use kqemu now (it will show a warning on the console if it fails to use kqemu).
qemu -m 500M debian.qcow
If you don’t have any qemu images yet, See here how to create one.
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