Emulating the XO
This page is an inprogress overhaul of OS images for emulation.
Quick Start
Mac Quick Start
Linux Quick Start
1. Obtain qemu.
On Fedora, as root:
yum install qemu
On Debian/Ubuntu, as root:
apt-get install qemu
2. Obtain an image.
Download olpc-redhat-stream-development-ext3.img.bz2 (md5). Then,
bzcat olpc-redhat-stream-development-ext3.img.bz2 > laptop.img
3. Run qemu on the image.
qemu -soundhw es1370 -serial `tty` -hda laptop.img
4. See Quick Start: Running for the first time.
5 (optional) Make qemu run faster.
If you have an x86 or x86_64 cpu, you can use kqemu to speed up the emulation several 100%.
5a. Obtain kqemu.
On fedora, x86,
XXX please fill this in if you know
On fedora, x86_64, there are no official kqemu, or kqemu kernel module, rpms. atrpms.net has some. Or install from source.
On Debian/Ubuntu, as root:
XXX please fill this in if you know
5b. Run modprobe.
modprobe kqemu major=0
This will need to be run again if the host computer is rebooted. If you forget, qemu will be slow again (and a one-line error message scroll by when you run qemu).
5c. Run a qemu variant with the -kernel-kqemu option.
On x86,
qemu -kernel-kqemu ...
On x86_64,
qemu-system-x86_64 -kernel-kqemu ...
If you forget and use just qemu instead, things will be slow again.
FreeBSD Quick Start
Install qemu from ports:
cd /usr/ports/emulators/qemu && make install clean
or as a package
pkg_add -r qemu
Then load kqemu and aio kernel modules:
kldload kqemu kldload aio
and launch the image you want:
qemu -hda olpc-stream-development-7-20060609_1600-ext3.img
- Should this take the same arguments as the linux qemu invocation? Are those arguments even needed for linux? MitchellNCharity 21:18, 23 May 2007 (EDT)
Quick Start: Getting an image
Quick Start: Running for the first time
Quick Start: Does my qemu have kqemu?
Does the version of the QEMU support KQEMU? Type ctrl+alt+2 and type info kqemu. Use ctrl+alt+1 to return to OLPC screen.