Emulating the XO/Quick Start: Difference between revisions

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(Duh - "qemu -m 256" for 256 MB RAM!)
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#REDIRECT [[Emulating the XO]]
{{Translations}}
This page will help you get a look at the XO software, by running a "virtual XO" in an emulator.
Another option is burning a [[LiveCd]].

== What to expect ==

This "virtual XO" was created as a software development tool. It is not intended for general use, and many things will not work. It is "just to get a taste" (and to help software developers). With time and people constraints, we are focused tightly on the real XO.

*The camera and video will not work.
*Things are slower than on the actual machine. If you are unable to install qemu's kqemu accelerator, very much slower.
*You will see a snapshot of the past. The instructions will have you download the "latest stable build", which is sometimes quite a few weeks old. Development is very rapid. So things will be missing or different compared with the present.
*While rapidly maturing, this is still "alpha" software.
*TamTam, the popular music program, will likely not work (no sound).

== Four steps ==

First, download
[http://olpc.download.redhat.com/olpc/streams/development/LATEST/devel_ext3/olpc-redhat-stream-development-devel_ext3.img.bz2 olpc-redhat-stream-development-devel_ext3.img.bz2]. It is in [http://olpc.download.redhat.com/olpc/streams/development/LATEST/devel_ext3/ this directory].

Second, get the qemu emulator which will run the image:
*[[Using QEMU on Windows XP|Windows]]
*[[Emulating the XO/Quick Start/Mac|Mac]]
*[[Emulating the XO/Quick Start/Linux|Linux]]
*[[Emulating the XO/Quick Start/Linux#FreeBSD|FreeBSD]]
*[[Emulating the XO/Quick Start/Linux#Yellow Dog Linux on PlayStation3|Yellow Dog Linux on PlayStation3]]

Third, extract the .img file from the .bz2 file.

Fourth, run:

qemu -m 256 -kernel-kqemu -soundhw es1370 -net user -net nic,model=rtl8139 -hda olpc-redhat-stream-development-devel_ext3.img

Note that qemu by default gives 128 MB RAM, but according to [[Hardware_specification]] recent XO HW have 256 MB, that's why the "-m 256". To test for early XO HW (or later with more), change the -m param. Giving 256 MB RAM appears to have a noticeable effect on speed in the emulator (as I'm sure in the real HW ;).

You should now have a running "virtual XO".

== Running for the first time ==

[[Sugar Instructions]] will help you get oriented. Though you may not need it.

You can also get other [[Emulating the XO/Help and tips|Help and tips]] on emulating Sugar.

When running under emulation, the sugar fonts will appear very tiny until you [https://dev.laptop.org/ticket/3681 set the screen to 200 dpi].

[[Category:Emulation]]
[[Category:Sugar]]

Latest revision as of 15:37, 7 February 2011

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