====== Qemu Stuff ======

[[https://www.qemu.org|Qemu]] is a machine emulator (i.e. virtual machine), similar to VirtualBox and VMWare.

===== Useful Notes =====

  * change tty in the guest os running on qemu with ALT + left or right arrows

===== QEMU console =====

To get this (compatmonitor0: available in 'View' menu), hit ''CTRL+ALT+F2''. It is also available on host terminal using ''-monitor stdio'' command-line option.

To switch ''tty'' terminal in guest OS, type <code>sendkey ctrl-alt-f2</code>

To get information on block devices available, type <code>info block</code>

To change virtual CD image, type <code>change <device> <file></code>

===== Virtual Disks =====

To create 15G disk image: <code>qemu-img create -f qcow2 disk.qcow2 15G</code>

To convert from VBox disk image: <code>qemu-img convert -f vdi -O qcow2 disk.vdi disk.qcow2</code>

To convert **from** raw disk image: <code>qemu-img convert -f raw -O qcow2 disk.img disk.qcow2</code>

To convert **to** raw disk image: <code>qemu-img convert -f qcow2 -O raw disk.qcow2 disk.img</code>

To get smaller disk image: <code>qemu-img convert -O qcow2 disk.qcow2 disk_small.qcow2</code>

===== Other Stuff =====

//just dumping this here for now...//

<code>

qemu-system-i386 -m 1536 -boot order=c,once=d -hda WinXP.qcow2 -cdrom winxp.iso

qemu-system-i386 -m 1536 -boot order=c -hda WinXP.qcow2

qemu-system-i386 -monitor stdio -enable-kvm -m 1536M WinXP.qcow2

to get pure vga (640x480) old games on windows xp?
-vga cirrus

default is
# -net nic -net user
nic: enables network card
user: sets up virtual subnet (dhcp: 10.0.2.15{guest} 10.0.2.2{host})

# -net nic -net user,hostname=my1VM
# -name "MY1 VM"

# -redir tcp:2222::22

qemu-system-i386 -soundhw help

qemu-system-i386 -soundhw sb16
qemu-system-i386 -soundhw all

3d graphics

-vga virtio -display sdl,gl=on
-vga virtio -display gtk,gl=on

qemu-system-i386 -m 1536 -boot order=c,once=d -hda Slack.img -cdrom slackware-14.1-install.iso
</code>