Emulating 8.2-767

Joshua Minor j at lux.vu
Fri Dec 5 18:01:41 EST 2008


This is great.  Thank you so much for making this work in VMWare  
again.  Most of the stuff I tried worked just like on my XO.  Record  
sort of works with the iSight on my iMac (the full preview is black,  
but it still records video).  Also, olpcgames seems confused about the  
screen size, so Maze is rendered too large.  I'll see if I can track  
this down.

It would be great if VMware hosted this image on their Virtual  
Appliance Marketplace http://www.vmware.com/appliances/index.html   
They already have pre-made images for Ubuntu, Fedora, openSUSE,  
OpenSolaris, etc.  I didn't see a way to upload new images, but maybe  
I missed it.

-josh

On Dec 3, 2008, at 8:43 AM, Bert Freudenberg wrote:

> Hi everyone,
>
> even with XOs readily available now there are quite a lot of reasons
> why one would want to emulate it on another machine. One being to hook
> up a projector. Unfortunately there are quite a number of hoops (*)
> one has to jump through to make it work.
>
> Anyway, I made a virtual machine that allows me to emulate the XO on
> my Mac, running Sugar in the XO's native 1200x900 resolution, scaled
> down to a nice physical size in a window an my regular screen
> (fullscreen works too). Sound works (even Tam Tam), Browse works (so
> networking is good, although I don't see anyone in the neighborhood).
> Camera and mic are not working (Measure crashes, Record shows blank
> picture), and a "Sugar restart" does not actually restart Sugar, but
> apart from that it seems fully functional, and much nicer than the
> emulations I had used to date.
>
> These are live-sized screenshots (calibrated using the Ruler  
> activity):
>
> http://dev.laptop.org/~bert/Ruler-emulated.png
> http://dev.laptop.org/~bert/Home-emulated.png
> http://dev.laptop.org/~bert/Journal-emulated.png
> http://dev.laptop.org/~bert/TamTamMini-emulated.png
>
> And here you can get that virtual machine (665 MB, 2 GB unzipped):
>
> http://dev.laptop.org/~bert/VMWare-Fusion-8.2-767-bf.zip
>
> This is for VMWare Fusion on the Mac, which I found to be much better
> at running Linux clients than Parallels (I had been using that for 2
> years). Give it a try, it's free as in beer for 30 days. No I don't
> get paid if you buy it.
>
> If you extract the disk image from the zip file it might work in
> VMWare on Windows. Maybe someone can make an appliance from that.
>
> (*)
> Now to the hoops:
>
> * I started with the 767/ext3 image from
>   http://download.laptop.org/xo-1/os/official/
> * extended to 2 GB by appending /dev/zero
>   (jffs2 compression gives roughly 2 GB too)
> * enlarged the partition to full 2 GB
>   (using fdisk and ext2resize)
> * mounted that in a Fedora 10 virtual machine
> * copied over the F10 kernel, initrd, and modules
>   (olpc kernel wanted AMD instructions)
> * edited grub.conf to use that kernel
> * and appended a root=/dev/sda1 kernel arg
>   (the fedora kernel wants to use LVM otherwise)
> * unmounted
> * created new virtual machine
>   (that disk, 1 CPU, 256 MB RAM, NAT networking)
> * booted into that new system
> * installed Perl
>   (for vmware tools installer)
> * installed vmware tools
>   (to get the X driver)
>   (but none of the kernel modules, would need make/gcc/etc.)
> * deleted Perl
>   (to restore the default sw environment)
> * copied the existing xorg-vmware.conf to xorg.conf
>   (to get 1200x900 resolution w/ 200 dpi)
> * booted into Sugar
>   (looks really nice so scaled down)
> * installed activities
>   (took a long time, maybe it's my DSL)
> * tested a bit
> * rm -r ~olpc/.sugar
>   (to remove my personal data)
> * should have deleted sshd host keys, too, but didn't
> * shut down
> * zip
> * upload
> * ...
> * ...
> * ...
> * still no profit? ;)
>
> Enjoy.
>
> And maybe remove some of the obstacles in future releases (a disk
> image with headroom and a standard kernel would be simple to do and go
> a long way).
>
> - Bert -
>
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