Re: Announcing GuruFest: Come hear from OLPC experts, kicking off this Friday with Mel Chua
Good point, David. In this particular case, there'll be opportunities for remote participation for people who aren't in the Boston area - I almost never give a talk these days without some sort of IRC backchannel. In this case, I'll make sure a computer is open and on #olpc-meeting so that (my nick is mchua). I'm hoping to make as many of the other Gurufests as possible - if I'm there, there'll be an IRC backchannel. ;) If I'm not there, I hope there'll be one anyway. --Mel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Announcing GuruFest: Come hear from OLPC experts, kicking off this Friday with Mel Chua
2009/3/9 Mel Chua meta...@gmail.com: Good point, David. In this particular case, there'll be opportunities for remote participation for people who aren't in the Boston area - I almost never give a talk these days without some sort of IRC backchannel. In this case, I'll make sure a computer is open and on #olpc-meeting so that (my nick is mchua). I'm hoping to make as many of the other Gurufests as possible - if I'm there, there'll be an IRC backchannel. ;) If I'm not there, I hope there'll be one anyway. --Mel How about also putting it up on a justin.tv channel? Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: gitweb-cgit
Chris Ball wrote: Any complaints/obvious bugs/things I've missed? Yeah... you broke the firmware builds. I've fixed them now. -- Richard A. Smith smithb...@gmail.com ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Server-devel] Serving 400+ students w/ a single central XS - ejabberd nightmare?
On Mon, 2009-03-09 at 21:51 -0700, Sameer Verma wrote: On Mon, Mar 9, 2009 at 7:04 PM, Bryan Berry br...@olenepal.org wrote: On Tue, 2009-03-10 at 09:58 +1300, Martin Langhoff wrote: On Mon, Mar 9, 2009 at 12:11 AM, Bryan Berry br...@olenepal.org wrote: I am worried about the XO's and not the XS. Now you're starting to see what I've seen :-/ I also worry about your APs and networking infra -- to support 400 active users you'll want at least 8 APs. In more realistic terms, you'll probably need 12, assuming a reasonably balanced load. We will have roughly 8+ AP's. We have found that off-the-shelf AP's can handle around 60-70 users. But that doesn't still doesn't solve the problem of the XO's getting bogged down by tons of ejabberd chatter. DSD: do you have any ideas about this? We are looking at about 100-150 students per school and connecting 3-4 schools to a central XS. As I mentioned before... I am working on xs-0.6, with the moodle-ejabberd magic. That's great, but our pilot starts in a month but that doesn't fit our timeline. I don't want to send out a completely new, untested XS into rural parts of Nepal. Do you have any other suggestions fo us? What if you had a small footprint box (like a soekris or routerboard) at the school that talks to APs on one end via a switch, and does tunneling back to XS in a central location? That way you would have a fairly dumb tunnel unit at school (literally plug-and-play) and XS management back at your central shop. Sameer Thanks for the suggestion Sameer. I don't really understand what benifits the soekris or routerboard adds in this situation? Can u pls explain further? -- Bryan W. Berry Technology Director OLE Nepal, http://www.olenepal.org ___ Server-devel mailing list server-de...@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
XO boot problem
Hi, An other school in Cambodia has the problem that several XOs don't boot anymore. Some of the XOs have build 708 and other ones build 767 installed. All are in secure mode. With a dignostic startup the following information is last shown on the screen: OLPC C2, 256 MiB memory installed, S/N CSN75001163 OpenFirmware CL1 Q2D16 Q2D Nothing happens anymore afterwards. The OFW hardware diagnostic is still working. After a clean install the XO works fine again but all the data is lost. Has anyone a solution for that problem or input for further diagnosis? I wanted to recommend a firmware update, but the file bootfw.zip is missing in the directory for the newer firmware releases (e.g. q2e18 for build 767): http://wiki.laptop.org/go/Upgrading_firmware#Steps_to_upgrade_firmware Regards, Philipp Pepyride School Cambodia Original Message Subject: Re: XO boot problem Date: Mon, 09 Mar 2009 11:11:07 +0700 From: Channa cha...@cambodiapride.org To: Philipp Kocher philipp.koc...@gmx.net References: 49aded40.5050...@gmx.net 49adfbad.8020...@cambodiapride.org 49adff27.8070...@gmx.net Dear Philipp, I just got one more XO from the 8th grader that have problem with booting up, after I did the same as you mention (press the check button, the right one of the four buttons above the power button) on the white screen has this massage, OLPC C2, 256 MiB memory installed, S/N CSN75001163 OpenFirmware CL1 Q2D16 Q2D . And nothing happen after that. Best regards, Channa Philipp Kocher wrote: Could you try to press the check button (the right one of the four buttons above the power button) when turning on the XO? See this website: http://wiki.laptop.org/go/Startup_Diagnosis#Check-Key_Boot You should see more information when booting. What are the last lines? Regards, Philipp Channa wrote: Dear Philipp, Thank you very much for trying to help. Yes, it's about 7 computers are from JHS and they have this problem, and these computers for 6th grader when you were here, but right now they are in 7th grader, and they are using build 708. And another 3 computers using by 8th grader with build 767, this build installed by Elijah at the beginning of the school year, he is a computer teacher there. And these problem we met last month but in different time. So as I told you I have no solution, even I tried to ran the hardware test the result everything is okay, but when I re-boot it again the computer play sound the same as normal (the sound when the XO start) but after that very soon it changed quickly to white screen and the XO in the meddle of the screen and nothing happen even we wait about 1 or 2 hours it still the same. Right now I had erased everything and put the old build 708 back for them even we don't know what problem is and I'm worry that it will be more computers have the same problem like this and I don't want to erase the student's project from their XO, if you can help with this problem it will be helpful. Again thank you for your help, Best regards, Channa Philipp Kocher wrote: Hi Channa I can try to help you with your XO boot problem if you give me some more information. Please give me a detailed description of the problem. Here are some questions, but if you have more information which might be relevant please add it. What is the build number? How many XOs are affected? When did it start? When did you install the new build? Brake all XOs at the same time? What do you see on the screen when the boot process stops? Can you do the hardware test? Are new XOs from the JHS affected as well? Regards, Philipp ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: [Sugar-devel] instructions for flashing SoaS on a XO
Walter Bender walter.ben...@gmail.com writes: +1 http://sugarlabs.org/go/Translation Maybe Translation is not the best choice for naming this page. Feel free to modify it. I tried to figure out where to put this in the To Do list page, but couldn't find anything really useful. First on the list is the Downloads page itself. http://sugarlabs.org/go/Downloads/lang-fr -- Bastien ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XO boot problem
2009/3/10 Philipp Kocher philipp.koc...@gmx.net: Hi, An other school in Cambodia has the problem that several XOs don't boot anymore. Some of the XOs have build 708 and other ones build 767 installed. All are in secure mode. With a dignostic startup the following information is last shown on the screen: OLPC C2, 256 MiB memory installed, S/N CSN75001163 OpenFirmware CL1 Q2D16 Q2D Nothing happens anymore afterwards. The OFW hardware diagnostic is still working. After a clean install the XO works fine again but all the data is lost. Has anyone a solution for that problem or input for further diagnosis? This is a common problem seen by several deployments: http://dev.laptop.org/ticket/7607 It is caused when machines are shut down improperly - i.e. the child holds the power button for 5secs to turn off the laptop, or all power sources are removed (i.e. battery + AC connected, no AC and battery runs to zero, etc), or if the XO hard-crashes and you are forced to shut down uncleanly. The solution is to upgrade firmware to e.g. q2e18. While the firmware update will solve the immediate problem where OpenFirmware crashes when minor corruption is encountered, unclean shutdowns will lead to file corruption causing more, probably less-obvious problems down the line. I wanted to recommend a firmware update, but the file bootfw.zip is missing in the directory for the newer firmware releases (e.g. q2e18 for build 767): http://wiki.laptop.org/go/Upgrading_firmware#Steps_to_upgrade_firmware It sounds like you are not using 767, or have customized it somehow. Official 767 already has q2e18 as /boot/bootfw.zip and if you boot with AC connected it will upgrade you to q2e18. Could you give the URL to the build that you are using? Daniel ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: XO boot problem
While the firmware update will solve the immediate problem where OpenFirmware crashes when minor corruption is encountered, unclean shutdowns will lead to file corruption causing more, probably less-obvious problems down the line. How solid is the jffs2 file system? If I remove power while writes are in progress, what are the chances of the whole file system getting trashed and/or just the file I'm working on getting trashed? (I'm happy if I get either the old or new file.) Are there other possibilities, like a directory getting trashed? If a program writes to a file, how long before the data buffered in memory gets pushed out to disk? Is there an fsck for jffs2? If something nasty happens to the file system on my XO, what are my chances of recovering any useful data? -- These are my opinions, not necessarily my employer's. I hate spam. ___ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel
Re: Problem to use with USB VGA dongle
Hi devel@, Tried screen mirroring again, Here are my xorg.conf and corresponding Xorg.0.log complete with segfault: http://dev.laptop.org/~bjordan/xorg.conf.1 http://dev.laptop.org/~bjordan/Xorg.0.log Any ideas? Brian On Fri, Feb 27, 2009 at 1:33 PM, Brian Jordan br...@laptop.org wrote: Hi Ben, I had a bit of luck with the StarTech USB2VGA2 on 8.2 using this xorg.conf: http://dev.laptop.org/~bjordan/xorg.confhttp://dev.laptop.org/%7Ebjordan/xorg.conf A few notes: * Resolution on the VGA monitor I'm testing with is not perfect, the upper left side of the screen is cut off a bit * Right now, the XO display is not being mirrored on the VGA display, rather, the VGA display is replacing it. Anyone know how mirroring should be done? * Bootup is interrupted if dongle is plugged in during bootup. So wait until it boots up and says: Fatal server error: no screens found. giving up. Then plug in dongle, and run olpc-dm. * When the XO goes to sleep, the display won't come back: [ 211.250666] Suspending console(s) +r[ 211.251913] sisusb 2-4:1.0: no suspend for driver sisusb? [ 211.290939] olpc-dcon: The DCON has control [ 211.330472] olpc_do_sleep! [ 211.452412] usb usb1: root hub lost power or was reset [ 211.467264] usb usb2: root hub lost power or was reset [ 211.593813] olpc-dcon: The CPU has control [ 211.955151] usb_reset_device! [ 212.018375] hub_port_wait_reset: portstatus=503 portchange=10 [ 212.074819] usb 2-1: reset high speed USB device using ehci_hcd and address 2 [ 212.135560] hub_port_wait_reset: portstatus=503 portchange=10 [ 212.238468] USB_REQ_SET_CONFIGURATION! [ 212.240473] usb_reset_device! [ 212.296597] hub_port_wait_reset: portstatus=503 portchange=10 [ 212.356408] usb 2-4: reset high speed USB device using ehci_hcd and address 3 [ 212.413733] hub_port_wait_reset: portstatus=503 portchange=10 [ 212.515932] USB_REQ_SET_CONFIGURATION! [ 212.516206] sisusb 2-4:1.0: no reset_resume for driver sisusb? HTH, Brian 2009/1/5 Ben Lau xben...@gmail.com Hi all, I am trying to use a USB VGA dongle on a XO with release v8.2. The USB VGA dongle is a generic USB to VGA adapter listed in the wiki page: http://wiki.laptop.org/go/Peripherals/USB_to_VGA However, I can not get it work by following the instruction in http://wiki.laptop.org/go/Adding_USB_SVGA It is my setup: yum install xorg-x11-drv-sisusb wget http://downloads.openwrt.org/people/florian/olpc/sisusbvga.ko cp sisusbvga.ko /lib/modules/`uname -r`/kernel/drivers/usb/ sudo depmod -a And then edit /etc/X11/xorg.conf However , if I follow the instruction from wiki , and just add additional section of Monitor and Device. It don't load sisusb driver at all . Therefore, I have also added Screen section and modified the ServerLayout. This time it could load sisusb driver, but still not able to launch a X session on the USB VGA. Nothing was shown in the monitor attached to the USB VGA. The log and config file are attached in the email. Does anybody success to use USB VGA dongle on XO (v8.2)? And could share the experience with me? Thanks. ___ 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: memory space
[There are better people to answer this. Perhaps they have migrated to the sugarlabs devel mailing list ?] Insert the SD card. Copy documents from the main storage onto the SD card, using the Journal. Delete the documents from the main storage (as new documents will be created there by default). If your problem is due to the NAND becoming full due to non-datastore items (activities, standard fedora packages you've installed, etc.) this won't help you. Cheers, wad On Mar 10, 2009, at 5:47 PM, Rekik Hanen wrote: Hi, how can I extend my memory space with an SD card to avoid the error Fatale : write error (No space left on device)? please help me !! thanks ___ 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: [Server-devel] Serving 400+ students w/ a single central XS - ejabberd nightmare?
Daniel Drake wrote: 2009/3/9 Bryan Berry br...@olenepal.org: We will have roughly 8+ AP's. We have found that off-the-shelf AP's can handle around 60-70 users. But that doesn't still doesn't solve the problem of the XO's getting bogged down by tons of ejabberd chatter. DSD: do you have any ideas about this? Have only had a chance to test numbers on Linksys WRT54Gsomething routers, which stop accepting new connections after 33 users. yay. Have you tried loading a different firmware on these, dd-wrt? ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] Serving 400+ students w/ a single central XS - ejabberd nightmare?
Folks, Here at OLPC AU, we are using Linksys WRT54GLs using DD-WRT and configuring the routers to act as an AP according to the following instructions. http://www.dd-wrt.com/wiki/index.php/Wireless_Access_Point I found I could turn the WRT54GL into the required AP mode in 10minutes, using an XO. In our first round of deployments we will be only using WRT54GLs, and after speaking to Dev, will be working on 1 for every 25. Thx, Rangan From: server-devel-boun...@lists.laptop.org [mailto:server-devel-boun...@lists.laptop.org] On Behalf Of Reuben K. Caron Sent: Tuesday, 10 March 2009 11:29 PM To: Daniel Drake Cc: server-devel Subject: Re: [Server-devel] Serving 400+ students w/ a single central XS - ejabberd nightmare? Daniel Drake wrote: 2009/3/9 Bryan Berry mailto:br...@olenepal.org br...@olenepal.org: We will have roughly 8+ AP's. We have found that off-the-shelf AP's can handle around 60-70 users. But that doesn't still doesn't solve the problem of the XO's getting bogged down by tons of ejabberd chatter. DSD: do you have any ideas about this? Have only had a chance to test numbers on Linksys WRT54Gsomething routers, which stop accepting new connections after 33 users. yay. Have you tried loading a different firmware on these, dd-wrt? ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] Serving 400+ students w/ a single central XS - ejabberd nightmare?
Rangan, I remember the Linksys routers used to drop connection, as soon as 33-34 clients were logged in, and as Bryan mentioned we got much better perfomance with the readily available Taiwanese brand of APs. With a Linksys 25 odd clients works just fine though with heavy traffic. With the Linksys WRT54G /L/S variants, its important to note the version (eg 5.1/ v6/ v8) and chip used (Atheros/ Broadcom) as only certain versions support full funtionality, with opensourced firware. Here's a good table to refer to: http://www.dd-wrt.com/wiki/index.php/Supported_Devices Cheers, Dev On 3/10/09, Rangan Srikhanta ran...@laptop.org.au wrote: Folks, Here at OLPC AU, we are using Linksys WRT54GLs using DD-WRT and configuring the routers to act as an AP according to the following instructions. http://www.dd-wrt.com/wiki/index.php/Wireless_Access_Point I found I could turn the WRT54GL into the required AP mode in 10minutes, using an XO. In our first round of deployments we will be only using WRT54GLs, and after speaking to Dev, will be working on 1 for every 25. Thx, Rangan *From:* server-devel-boun...@lists.laptop.org [mailto: server-devel-boun...@lists.laptop.org] *On Behalf Of *Reuben K. Caron *Sent:* Tuesday, 10 March 2009 11:29 PM *To:* Daniel Drake *Cc:* server-devel *Subject:* Re: [Server-devel] Serving 400+ students w/ a single central XS - ejabberd nightmare? Daniel Drake wrote: 2009/3/9 Bryan Berry br...@olenepal.org br...@olenepal.org: We will have roughly 8+ AP's. We have found that off-the-shelf AP's can handle around 60-70 users. But that doesn't still doesn't solve the problem of the XO's getting bogged down by tons of ejabberd chatter. DSD: do you have any ideas about this? Have only had a chance to test numbers on Linksys WRT54Gsomething routers, which stop accepting new connections after 33 users. yay. Have you tried loading a different firmware on these, dd-wrt? ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] Serving 400+ students w/ a single central XS - ejabberd nightmare?
On Tue, Mar 10, 2009 at 6:14 AM, Daniel Drake d...@laptop.org wrote: 2009/3/10 Reuben K. Caron reu...@laptop.org: Have you tried loading a different firmware on these, dd-wrt? No, but there are regulatory issues there and we won't be using them in the schools...only used them because it was the only thing available to run tests with. The exact model is Linksys WRT54Gv8. You'd think that after 8 revisions and several years of developing these APs might support 34 users, WDS, or running as a STA. nope! There's a reason why Cisco bought them. Upgrade path! Squeeze from below, pull from above. http://www.linksystocisco.com/ Sameer Daniel ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
[Server-devel] notes on scaling ejabberd for the XO's
Here are some notes from a short IRC conversation I had w/ Rob Mcqueen, the lead developer of Telepathy transcript of conversation on #sugar bemasc: bernie: I am concerned about the fact that in the default schoolserver set up all users are in one giant shared roster Robot101 RESOLVED, ALREADYFIXED (but not in any deployments, or in the UI) BryanWB and the resulting chatter slows down the XO/Sugar considerably? Robot101 yes Robot101 rwh the latest versions of sugar and telepathy support using an XMPP component called gadget instead of the shared roster BryanWB Robot101: so gadget fixes this? Robot101 yup Robot101 rwh you only receive push notifications about a) what Sugar has searched for/displaying on the neighborhood view, or b) your friends -- hgcphoenix (n=hc...@124.107.253.193) has joined #sugar BryanWB Robot101: neat, and does it work together w/ the XS? Robot101: which version of sugar is it in? -- hgcphoenix (n=hc...@124.107.253.193) has left #sugar Robot101 they went off on a complete tangent trying to hack shared rosters to have less mutually visible sets of people we thought of that but also decided it was the bong, so we fixed it properly with gadget. BryanWB Robot101: what is the testing status of gadget? Robot101 it's deployed on jabber.sugarlabs.org (which is on collabora.co.uk) seems to work fine, ejabberd seems to gradually leak memory though, which isn't too great maybe a little much CPU usage on gadget, but nothing you couldn't profile and I'm not familiar enough with the sugar release cycle to say where the support went in Robot101 rwh eu daytime is better to find the Sugar devs and the Collaborans who worked on Gadget (cassidy, daf) BryanWB Robot101: ok, will talk w/ them later today Robot101 gadget was always our plan, it just took us a while to get to it BryanWB Robot101: by the way last year we tested ejabberd by streaming your video talk on Telepathy to 80 XO's bemasc Robot101: I believe martin dropped the shared roster, and inside is simply using moodle to set all rosters directly. s/inside/instead/ bemasc bernie benzea Robot101 bemasc: so it's still shared as in server-enforced mutual visibility, just in smaller groups. bemasc right, but from ejabberd's perspective, it's individual rosters Robot101 that's exactly how shared rosters always work Robot101 the client thread gets a copy of the same roster at sign in bemasc oh? I thought there was a patch to ejabberd required. Robot101 yes, he's patched it to source the shared roster from moodle, I'd imagine bemasc martin seemed to say that he could use a totally stock ejabberd Robot101 oh, right. sql query or something. our patches were just extending the built-in shared roster to a) work properly (deal with dynamic additions and removals) and b) support a group of online users rather than everyone -- Bryan W. Berry Technology Director OLE Nepal, http://www.olenepal.org ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
Re: [Server-devel] Serving 400+ students w/ a single central XS - ejabberd nightmare?
If you aren't going to place school servers in the actual schools, and insist on centralizing them, the hardware recommended by Sameer is a good idea. My argument has always been that you want local web caching and content, and that an XS shouldn't be that much more expensive than the above hardware. If you are willing to guarantee constant connectivity to a central office to support centralized servers, remotely maintaining the servers in the schools shouldn't be a problem. Cheers, wad On Mar 10, 2009, at 1:57 PM, Sameer Verma wrote: On Tue, Mar 10, 2009 at 3:12 AM, Bryan Berry br...@olenepal.org wrote: On Mon, 2009-03-09 at 21:51 -0700, Sameer Verma wrote: On Mon, Mar 9, 2009 at 7:04 PM, Bryan Berry br...@olenepal.org wrote: On Tue, 2009-03-10 at 09:58 +1300, Martin Langhoff wrote: On Mon, Mar 9, 2009 at 12:11 AM, Bryan Berry br...@olenepal.org wrote: I am worried about the XO's and not the XS. Now you're starting to see what I've seen :-/ I also worry about your APs and networking infra -- to support 400 active users you'll want at least 8 APs. In more realistic terms, you'll probably need 12, assuming a reasonably balanced load. We will have roughly 8+ AP's. We have found that off-the-shelf AP's can handle around 60-70 users. But that doesn't still doesn't solve the problem of the XO's getting bogged down by tons of ejabberd chatter. DSD: do you have any ideas about this? We are looking at about 100-150 students per school and connecting 3-4 schools to a central XS. As I mentioned before... I am working on xs-0.6, with the moodle-ejabberd magic. That's great, but our pilot starts in a month but that doesn't fit our timeline. I don't want to send out a completely new, untested XS into rural parts of Nepal. Do you have any other suggestions fo us? What if you had a small footprint box (like a soekris or routerboard) at the school that talks to APs on one end via a switch, and does tunneling back to XS in a central location? That way you would have a fairly dumb tunnel unit at school (literally plug-and-play) and XS management back at your central shop. Sameer Thanks for the suggestion Sameer. I don't really understand what benifits the soekris or routerboard adds in this situation? Can u pls explain further? The Soekris unit (say Soekris 4501 http://www.soekris.com/net4501.htm) would sit at the school location talking to the APs via a switch on one end and create a tunnel on the other end to your XS farm. The tunnel runs over a VPN from school to XS farm. Both Soekris and Routerboard have miniPCI slots that will take hardware accelerators for VPN such as this one: http://www.soekris.com/vpn1401.htm so it is possible to run VPNs on these boards. Soekris units are almost zero maintenance (no moving parts etc.) and can also double up as APs. One thing to note: the hw VPN accelerator support under Linux isn't very robust. I've used it with BSD (http://m0n0.ch/wall/) and it works well. It will do IPSec VPN tunnels. http://m0n0.ch/wall/features.php With a zero maintenance small footprint unit at the school (will run with 12 V as well) and XS units at your school server farm you can maintain the XS units locally and keep the school network running via the VPN. The last time I suggested this, the -1 reasoning was that you would need a good connection between the school and the XS farm. http://lists.laptop.org/pipermail/server-devel/2008-October/ 002244.html Sameer -- Dr. Sameer Verma, Ph.D. Associate Professor of Information Systems San Francisco State University San Francisco CA 94132 USA http://verma.sfsu.edu/ http://opensource.sfsu.edu/ole-nepal- vpn.png___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel ___ Server-devel mailing list Server-devel@lists.laptop.org http://lists.laptop.org/listinfo/server-devel
