Re: Replicating XO experience in a VM
Hi Sridhar, On Sun, May 15, 2011 at 3:41 PM, Sridhar Dhanapalan srid...@laptop.org.au wrote: I've been investigating ways to replicate an XO's experience in a virtual machine (VirtualBox), so that it can be run on other computers without requiring an XO. Our OS is a variant of OLPC OS 10.1.3, so I'm trying to replicate that. We determined that booting the XO image directly does not work. Sugar on a Stick might be a good start. Drawbacks are that we would have to use v1 (Strawberry), and the Sugar 0.84 present in Strawberry is not the same as the one in the OLPC OS (a lot of changes have been made). My experimentation has been to install the OLPC packages (carefully avoiding the kernel) on top of a standard Fedora 11 install. I can get it to load to the Sugar name screen. If you enter a name and select your colours, you are prompted for them again. It does not proceed to the Home View. My method and findings are documented here: http://dev.laptop.org.au/projects/xo-au/wiki/Virtual_machine I feel that I am tantalisingly close, and I'd appreciate some assistance with this. I feel that a working VM solution can be of great benefit to the community. If it helps, I can put my VM image up for download and inspection. I suggest you look at the olpc-os-builder. Its pacakged in Fedora. Its also the series of scripts used to build the releases. The major difference between a XO image and any other image is the files produced at the end. I don't believe it would be hard to either A) extract the OS ext3 file system of an XO 1.5 and add it to a VM image or b) add a plugin to the scripts that produce something that can be imported into a VM. Peter ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
On 17 May 2011 19:19, Peter Robinson pbrobin...@gmail.com wrote: I suggest you look at the olpc-os-builder. Its pacakged in Fedora. Its also the series of scripts used to build the releases. The major difference between a XO image and any other image is the files produced at the end. I don't believe it would be hard to either A) extract the OS ext3 file system of an XO 1.5 and add it to a VM image or b) add a plugin to the scripts that produce something that can be imported into a VM. Interesting idea. We are using the OS Builder to produce our builds, but I didn't think of extending it to generate a VM-capable build. Thanks, Sridhar ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
On 17 May 2011 13:11, Sridhar Dhanapalan srid...@laptop.org.au wrote: Interesting idea. We are using the OS Builder to produce our builds, but I didn't think of extending it to generate a VM-capable build. I'm a bit skeptical if this will work well, without driving you up the wall first, but by all means try it..! You will have to tweak numerous things, such as not building with a versioned filesystem, installing a normal bootloader, using fedora's kernel instead of OLPC's, not using OLPC's initramfs, replacing or hacking olpc-session, ... Personally I would go for your first approach, of putting recent sugar-0.84 on top of regular Fedora 11. To diagnose the crash you are seeing you could check the sugar and gdm logs, or start sugar with sugar-emulator (which probably makes errors more obvious), or by starting an X session with only xterm and then running /usr/bin/sugar (again to be able to see errors easily). Daniel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
On Sun, May 15, 2011 at 10:41 AM, Sridhar Dhanapalan srid...@laptop.org.au wrote: I've been investigating ways to replicate an XO's experience in a virtual machine (VirtualBox), so that it can be run on other computers without requiring an XO. Our OS is a variant of OLPC OS 10.1.3, so I'm trying to replicate that. About one year ago, I prepared a SoaS image matching roughly the user experience of OLPC's 10.1.1 . I did that by taking the build scripts for the closest SoaS I could find, and tweaking them. I don't have the URLs right now, but I posted a few times to the soas mailing list asking for help, and later with the end results. The archive of the soas ml should have the info you're after. I probably crossposted to sugar-devel too. Of course, you'll want to update it to 10.1.3 and newer activities. If it works, let us know :-) About your current effort... My experimentation has been to install the OLPC packages (carefully avoiding the kernel) on top of a standard Fedora 11 install. I can get it to load to the Sugar name screen. If you enter a name and select your colours, you are prompted for them again. It does not proceed to the Home View. You are right, it seems you're very close. You seem to have olpc-utils installed, so Sugar starts. When it takes your name, it's trying to write it -- there's a good chance that it's failing to write it, can you get logs from that? It'll tell you what's broken. My comments (after reading the wikipage you link) - You are creating the olpc user and grp, but not matching uid/gid (500:500). Some scripts in olpc-utils may be hardcoded... - use chkconfig to start the olpc-configure service - this preconfigures /home/olpc . It will probably also mess up your keyboard map :-/ - you may need to kill/remove/uninstall pulseaudio hth, m -- martin.langh...@gmail.com mar...@laptop.org -- Software Architect - OLPC - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
On Tue, May 17, 2011 at 11:06 AM, Martin Langhoff martin.langh...@gmail.com wrote: I don't have the URLs right now, but I posted a few times to the soas mailing list asking for help, and later with the end results. Various threads in Feb 2010 cover the conversation w sdz on this topic. Here's perhaps the best individual email - you'll want to read earlier and later posts http://lists.sugarlabs.org/archive/soas/2010-February/000838.html sdz's scripts http://git.sugarlabs.org/soas/mainline/trees/strawberry my scripts http://dev.laptop.org/git/users/martin/soas/ cheers - m -- martin.langh...@gmail.com mar...@laptop.org -- Software Architect - OLPC - ask interesting questions - don't get distracted with shiny stuff - working code first - http://wiki.laptop.org/go/User:Martinlanghoff ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
Excerpts from James Cameron's message of Tue May 17 06:02:40 +0200 2011: If I were doing this, I would take an OLPC OS or your derivative, add a conventional Fedora kernel to /boot, then add and configure grub. If you have done that, tell us the result? Been there, done that and failed. [1] Since a regular F14 VM works quite fine with the same kernel (the stock Fedora one), I'm at a loss. Help fixing the segfault issue would be welcome; the offer to post the WIP patches stands. Sascha [1] http://lists.laptop.org/pipermail/devel/2011-March/031506.html -- http://sascha.silbe.org/ http://www.infra-silbe.de/ signature.asc Description: PGP signature ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
Hi Sridhar, Tom Gilliard has done some fabulous work with VMs, see: http://wiki.sugarlabs.org/go/Emulator_image_files Sean On Sun, May 15, 2011 at 4:41 PM, Sridhar Dhanapalan srid...@laptop.org.au wrote: I've been investigating ways to replicate an XO's experience in a virtual machine (VirtualBox), so that it can be run on other computers without requiring an XO. Our OS is a variant of OLPC OS 10.1.3, so I'm trying to replicate that. We determined that booting the XO image directly does not work. Sugar on a Stick might be a good start. Drawbacks are that we would have to use v1 (Strawberry), and the Sugar 0.84 present in Strawberry is not the same as the one in the OLPC OS (a lot of changes have been made). My experimentation has been to install the OLPC packages (carefully avoiding the kernel) on top of a standard Fedora 11 install. I can get it to load to the Sugar name screen. If you enter a name and select your colours, you are prompted for them again. It does not proceed to the Home View. My method and findings are documented here: http://dev.laptop.org.au/projects/xo-au/wiki/Virtual_machine I feel that I am tantalisingly close, and I'd appreciate some assistance with this. I feel that a working VM solution can be of great benefit to the community. If it helps, I can put my VM image up for download and inspection. Thanks, Sridhar Sridhar Dhanapalan Technical Manager One Laptop per Child Australia M: +61 425 239 701 E: srid...@laptop.org.au A: G.P.O. Box 731 Sydney, NSW 2001 W: www.laptop.org.au ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
On 16 May 2011 20:30, Sean DALY sdaly...@gmail.com wrote: Hi Sridhar, Tom Gilliard has done some fabulous work with VMs, see: http://wiki.sugarlabs.org/go/Emulator_image_files Sean Thanks Sean. However, like I said, I'm trying to replicate an XO (OLPC OS) experience, not a Sugar on a Stick experience. The Sugar used in OLPC OS is a patched 0.84. It most closely resembles SoaS v1, but also has some key functionality taken from later versions of Sugar. Cheers, Sridhar ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
Sridhar - only a few of those images are SoaS. The others are VMs in other distros, or in Fedora non-SoaS. Tom could perhaps advise you in building a VM that will closely resemble your XO build. Sean On Mon, May 16, 2011 at 4:03 PM, Sridhar Dhanapalan srid...@laptop.org.au wrote: On 16 May 2011 20:30, Sean DALY sdaly...@gmail.com wrote: Hi Sridhar, Tom Gilliard has done some fabulous work with VMs, see: http://wiki.sugarlabs.org/go/Emulator_image_files Sean Thanks Sean. However, like I said, I'm trying to replicate an XO (OLPC OS) experience, not a Sugar on a Stick experience. The Sugar used in OLPC OS is a patched 0.84. It most closely resembles SoaS v1, but also has some key functionality taken from later versions of Sugar. Cheers, Sridhar ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
Yes, I see what you mean now. My apologies, it looks like I jumped the gun! Thanks for your advice. Sridhar On 17 May 2011 00:08, Sean DALY sdaly...@gmail.com wrote: Sridhar - only a few of those images are SoaS. The others are VMs in other distros, or in Fedora non-SoaS. Tom could perhaps advise you in building a VM that will closely resemble your XO build. Sean On Mon, May 16, 2011 at 4:03 PM, Sridhar Dhanapalan srid...@laptop.org.au wrote: On 16 May 2011 20:30, Sean DALY sdaly...@gmail.com wrote: Hi Sridhar, Tom Gilliard has done some fabulous work with VMs, see: http://wiki.sugarlabs.org/go/Emulator_image_files Sean Thanks Sean. However, like I said, I'm trying to replicate an XO (OLPC OS) experience, not a Sugar on a Stick experience. The Sugar used in OLPC OS is a patched 0.84. It most closely resembles SoaS v1, but also has some key functionality taken from later versions of Sugar. Cheers, Sridhar ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Replicating XO experience in a VM
If I were doing this, I would take an OLPC OS or your derivative, add a conventional Fedora kernel to /boot, then add and configure grub. If you have done that, tell us the result? -- James Cameron http://quozl.linux.org.au/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Replicating XO experience in a VM
I've been investigating ways to replicate an XO's experience in a virtual machine (VirtualBox), so that it can be run on other computers without requiring an XO. Our OS is a variant of OLPC OS 10.1.3, so I'm trying to replicate that. We determined that booting the XO image directly does not work. Sugar on a Stick might be a good start. Drawbacks are that we would have to use v1 (Strawberry), and the Sugar 0.84 present in Strawberry is not the same as the one in the OLPC OS (a lot of changes have been made). My experimentation has been to install the OLPC packages (carefully avoiding the kernel) on top of a standard Fedora 11 install. I can get it to load to the Sugar name screen. If you enter a name and select your colours, you are prompted for them again. It does not proceed to the Home View. My method and findings are documented here: http://dev.laptop.org.au/projects/xo-au/wiki/Virtual_machine I feel that I am tantalisingly close, and I'd appreciate some assistance with this. I feel that a working VM solution can be of great benefit to the community. If it helps, I can put my VM image up for download and inspection. Thanks, Sridhar Sridhar Dhanapalan Technical Manager One Laptop per Child Australia M: +61 425 239 701 E: srid...@laptop.org.au A: G.P.O. Box 731 Sydney, NSW 2001 W: www.laptop.org.au ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
