On 09/06/2010 03:40 PM, pbrobin...@gmail.com wrote: > On Mon, Sep 6, 2010 at 2:05 PM, Daniel Drake<d...@laptop.org> wrote: >> On 5 September 2010 13:57, Christoph Derndorfer >> <christoph.derndor...@gmail.com> wrote: >>> Hi, >>> >>> I just created a new ticket (http://bugs.sugarlabs.org/ticket/2292) to get >>> some discussions started on what changes need to be made to Sugar to work >>> well in an environment where multiple users will work on the same machine >>> (which is how Peru's next 300,000 XOs will be used: >>> http://www.olpcnews.com/countries/peru/peru_between_one_laptop_per_child_and_seven_children_per_laptop.html). >>> >>> Obviously this touches upon a lot of areas from simple naming of the >>> machine, over the Journal, backups and probably a whole host of other issues >>> that I haven't though of yet. >> >> When we discussed this while I was in Peru, one requirement they >> identified is that the kid would log onto an XO one day and do some >> work, and then log onto another XO the following week and continue the >> same work. >> >> Assuming this still stands, this strongly calls for a network-based >> home directory system with some kind of network login service (but >> someone with experience in such areas should comment). This would >> require a number of changes at the OS level and server level, but >> Sugar would be left untouched, as far as I can think. > > The standard way of doing this in unix is to use nfs and automount > with NIS/LDAP authentication. This would mount the users home > directory on login. There's a number of issues that come up with this > implementation for the XOs in that wireless would need to connect > prior to this and NFS over wifi would be interesting at best due to > wifi dropouts. To mitigate that problem you'd probably have to wedge > some of the caching filesystems that are being developed to allow the > home directory to be cached. Suddenly your getting a very complex > solution to fix the problem.
Yes, this is true. I obviously used wired connections when using LDAP/NFS. In a lap with fixed equipment this is an easy setup. For the XOs, I agree this could lead to frustration. (even in my case kids very confused because someone has pulled the cables) > The other possible alternative to this would be to use something like > couchdb to store the contents of the journal and associated config > files where you can have a local couchdb that replicates to a remote > service. This might be the simpler solution but would obviously > require development. > > Peter Interesting. A solution where you only need to sync twice (start/stop) might be better in the wifi environment. Regards, Simon _______________________________________________ Devel mailing list Devel@lists.laptop.org http://lists.laptop.org/listinfo/devel