Using Virtual Machines with QEMU

General Information

Do you like to run virtual servers, but don’t want to run Windows as a host? QEMU is your answer as it will host several virtual machines within you FreeBSD installation.


  1. Root/sudo access.


Install qemu with the options showed below:

 # cd /usr/ports/emulators/qemu && make install clean 

 Options for qemu: [X] KQEMU Build with (alpha!) accelerator module [X] HACKS_CIRRUS Large display speedup (buggy!) [ ] RTL8139_TIMER allow use of re(4) nic with FreeBSD guests [ ] SAMBA samba dependency (for -smb) [X] SDL SDL/X dependency (graphical output) [X] CDROM_DMA IDE CDROM DMA 

Install and configure sudo:

 # cd /usr/ports/security/sudo && make install clean 

sudo config:

Note: ‘username’ is your username.
 # cat > /usr/local/etc/sudoers << EOF # root ALL=(ALL) ALL # username ALL=(ALL) NOPASSWD: ALL # EOF 


Load the needed modules:

 # sudo kldload aio # sudo kldload kqemu 

Create Windows 2000 install CD image by using cat or dd:

 # cat /dev/acd0 > ~/qemu/win2k.iso # dd bs=2048 if=/dev/acd0 of=~/qemu/win2k.iso 

Create qemu image for new OS:

 # qemu-img create -f qcow2 ~/qemu/win2000.img 4G 

Install new os, new balance france Windows 2000 in our example:

 # qemu -boot d -hda ~/qemu/win2000.img -m 128 -cdrom ~/qemu/win2k.iso -win2k-hack -localtime 


Typical usage of OS under qemu:

 # qemu -hda ~/qemu/win2000.img -m 256 -localtime 

Typical usage of OS under qemu in snapshot mode [to commit made changes hit left_CTRL+left_ALT+2 and type commit]:

 # qemu -hda ~/qemu/win2000.img -m 256 -localtime -snapshot 

To switch focus between qemu mouse focus and X11 mouse focus use: left_CTRL+left_ALT

To ensure that you use kqemu kernel module in user mode hit left_CTRL+left_ALT+2 and type info kqemu

Note: If everything is ok you will see:
 kqemu support: enabled for user code 

if not you will see:

 kqemu support: disabled 

If it's disabled it will work, but terribly slow. nike pour homme pas cher ffxiv gil timberland femme air max homme buy ffxiv Items You will be running a Pentium 75MHz on a host with an AthlonXP 1.66GHz.

To switch between qemu console and qemu OS emualtion use left_CTRL+left_ALT+2 to go to the console and left_CTRL+left_ALT+1 to go back to the emulation.

To enable the network on the emulated OS, bottes timberland use DHCP configuration inside the emulated OS to get an IP adress of 10.x.x.x.

After you shutdown your emulated OS (or using qemu console left_CTRL+left_ALT+2 and type quit) use this command to launch your emulated OS again:

 # qemu -hda ~/qemu/win2000.img -m 256 -localtime 

To enable sound in the qemu OS, you just need to launch qemu the way I listed above only with -soundhw sb16 or -soundhw es1370 to emulate Sound Blaster 16, timberland homme or Sound Blaster 128. ugg australia asics tiger nike huarache adidas ultra boost nike cortez ugg noir pas cher You can also enable the standard annoying BEEP with -soundhw pcspk. nike blazer nike air max flyknit chaussure nike pas cher bottes ugg chaussure adidas zx flux You can also enable all three of them like that: -soundhw sb16,es1370,pcspk, new balance soldes or just BEEP + one of them: -soundhw es1370,pcspk. Ugg 2017 ugg soldes ugg 2017 UGG Bottes new balance running For example:

 # qemu -hda ~/qemu/win2000.img -m 256 -localtime -soundhw pcspk # qemu -hda ~/qemu/win2000.img -m 256 -localtime -soundhw es1370,pcspk # qemu -hda ~/qemu/win2000.img -m 256 -localtime -soundhw es1370,pcspk,sb16 

There is also the following fluxbox add-on to ~/.fluxbox/apps:

 # qemu [app] (class=SDL_App) [Workspace] {2} [Deco] {BORDER} [end] 


  1. man qemu-img
  2. man qemu
  3. man aio
  4. man dd
  5. man cat
Note: The same schema works for Solaris 10 and WindowsXP, new balance france you only do not use -win2k-hack.

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