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04:18 | <Ark74> hi guys!
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04:20 | i was wondering, if i would like to control the internet QoS on a ltsp network, would you say that squid is the way to go?
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08:09 | <effenberg> all ubuntu howtos state: just install paket built-client and ltsp is good to go. i doubt that
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12:49 | <ogra_> effenberg, well, if following https://help.ubuntu.com/community/UbuntuLTSP/LTSPQuickInstall#Installing_on_top_of_an_already_running_desktop_system doesnt work, thats a bug
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12:51 | (admittedly there is one paragraph of preparation above and the howto stems from a time where i386 was a default architecture ... today you might need to add --arch i386 to the build command)
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15:35 | <gbaman_> any suggestions for a way to push out a folder to all users on an LTSP server?
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15:35 | after they are created
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15:39 | <alkisg> For students?
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15:43 | <gbaman_> yes
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15:44 | <alkisg> We've created a "shared-folders" service for schools here, where teachers and students that belong in a group e.g. "class1" automatically get shared folders like this:
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15:44 | the teacher gets a folder "class1" where he can share stuff, read-only
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15:45 | <gbaman_> that would be a better approach
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15:45 | <alkisg> the students get symlinks to those folders, like e.g. "class1-teacher1", for every teacher that teaches in that class
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15:45 | So, when the teacher needs to push an exercise, he just copies it to his own class1 folder,
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15:45 | <gbaman_> ok, how would one implement this?
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15:45 | <alkisg> and the students then open it from their desktop symlinks, and do "save-as" to their own folder if they need to change it
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15:46 | <gbaman_> I am not bothered about 1 per class. a single shared folder per school will do me
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15:46 | seeing as that is the way most schools do it currently anyway
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15:47 | <alkisg> Here's the main file: http://bazaar.launchpad.net/~ts.sch.gr/sch-scripts/trunk/view/head:/share/sch-scripts/shared_folders.py
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15:47 | It also creates a read/write folder for each class, for projects etc
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15:49 | <gbaman_> Am not long back from the Raspberry Jamboree, after giving my talk on this, have quite a few interested geeks and schools
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15:50 | including the Raspberry Pi foundation are now interested...
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15:53 | <gbaman_> hmm
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15:53 | greek
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15:53 | thats an interesting issue
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15:53 | <alkisg> Yup it's for local use :)
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15:53 | Google translate it...
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15:53 | <gbaman_> already on it
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15:57 | <alkisg> There are 2 main things involved, bindfs for the proper permissions, and an extra share with ssh_follow_symlinks=on, for ltsp fat clients to get access to the teacher's share
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15:59 | <gbaman_> and then how do you make sure new users are in certain groups alkisg?
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15:59 | <alkisg> sch-scripts has a user management UI
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16:00 | So when we create users for classes, they automatically go to the correct group
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16:00 | * gbaman_ wonders how hard it would be to run it all through google translator... | |
16:00 | <alkisg> E.g. the teacher can either enable new user signups for class1,
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16:00 | or he can create 12 accounts for class1, 2, and 3, with one button click
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16:03 | <gbaman_> because it does sound like the answer to most of my LTSP issues
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16:03 | vagrantc: ?
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16:03 | <vagrantc> gbaman_: ? back at you
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16:03 | <gbaman_> meant to ask to see if you have any idea on this
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16:03 | having issues running a graphics accelerated game on the pi
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16:04 | via LTSP
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16:04 | is there any reason we are using the 3.2 kernel?
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16:04 | * vagrantc is not at all surprised | |
16:04 | <alkisg> It runs fine locally, and it doesn't run on an ltsp fat client?
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16:04 | That would be strange...
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16:04 | <gbaman_> the sd card images ship with 3.6
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16:05 | i am leaning towards it being an issue with an older kernel?
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16:05 | <vagrantc> gbaman_: 3.2 is what's in debian wheezy, so raspbian has been following that with security updates and the patches needed for rpi
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16:05 | gbaman_: i believe there are other newer kernels available in the raspbian repositories
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16:06 | <gbaman_> the issue is here https://github.com/gbaman/RaspberryPi-LTSP/issues/1
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16:06 | i did check /dev on the pi and I have vchiq
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16:06 | of course though, not in /dev on the server image
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16:08 | <vagrantc> gbaman_: far as i can see raspbian currently offers a 3.2, 3.6 and 3.10 kernel.
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16:08 | gbaman_: take your pick...
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16:08 | <gbaman_> ok, the ones now shipped use 3.6
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16:09 | (well, not shipped but you get where i am coming from)
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16:09 | <vagrantc> rpi foundation is currently recommending 3.10
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16:09 | <gbaman_> are they?
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16:09 | why would they include 3.6 in their recommended image?
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16:09 | <vagrantc> according to the linux-image-rpi-rpfv package
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16:10 | gbaman_: sounds like you should ask these questions in #raspberrypi and/or #raspbian
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16:10 | <gbaman_> ok, will do
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16:10 | back to the initial question
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16:11 | <vagrantc> i use 3.2 because it's not constantly changing... i.e. stable.
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16:11 | <gbaman_> could you see any other reason why all graphics accelerated applications crash with "Failed to open vchiq instance"?
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16:11 | <vagrantc> maybe it has other instability issues, but it is less likely to randomly introduce new bugs
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16:12 | i've never used graphics acceleration on the pi
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16:12 | only use the framebuffer
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16:12 | <lee> afternoon all
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16:12 | <gbaman_> brb
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16:12 | <gbaman> back
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16:17 | any reson translating sch-scripts via google translator shouldnt work?
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16:17 | <lee> I have LTSP (ubuntu 12.04) fat clients working quite nicely at work but I would like to customize them per machine, but based on one single image. what would be the right thing to identify machines by? they're basically kiosks running a browser with a custom firefox config. at what stage during startup should I move files around to make sure they're copied before X starts?
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16:18 | <gbaman> or even, is there not a library that you can just prefix every greek string with a function that makes it auto translateable?
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16:19 | <vagrantc> lee: what kind of customizations are you talking about?
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16:20 | <alkisg> gbaman: people did that for epoptes before we got it internationalized... it works, but it needs testing because not all our settings are suitable for everyone
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16:22 | I think the best route there would be to give Phantomas a few $$ to get him motivated to internationalize sch-scripts :P Or just wait a couple of years, we'll get there eventually...
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16:22 | <gbaman> that would requre there to be a few $$ available for the project :)
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16:23 | <vagrantc> crowdfunding?
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16:23 | * vagrantc saw https://freedomsponsors.org/ used recently | |
16:28 | <lee> vagrantc: custom X config, custom files in /usr/lib/firefox
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16:29 | <vagrantc> lee: custom X config can be handled through lts.conf
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16:29 | !lts.conf
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16:29 | <ltsp`> lts.conf: http://manpages.ubuntu.com/lts.conf
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16:29 | <lee> ok
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16:30 | <vagrantc> as for the files, you could write scripts an execut them as parts of various hooks, depending on when you wanted them to execute
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16:31 | <lee> before X loads
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16:31 | that is, they need to be in place before X kicks in
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16:31 | <vagrantc> how are you starting X?
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16:32 | <lee> whatever the default kiosk method is
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16:32 | <vagrantc> so SCREEN_07=kiosk or something?
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16:32 | <lee> yeah
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16:32 | <vagrantc> by default, it doesn't run in kiosk mode
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16:33 | drop some custom scripts in /opt/ltsp/ARCH/usr/share/ltsp/xinitrc.d/
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16:33 | where ARCH is amd64, i386, etc.
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16:33 | and then rebuild your image any time you make changes
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16:34 | <lee> ok, great, thanks!
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16:35 | that directory doesn't exist, is there any special requirements for the files to go in it?
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16:36 | <vagrantc> uh, what directories do exist in /opt/ltsp ?
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16:36 | or are you doing ltsp-pnp?
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16:37 | <lee> ohh, nevermind, wrong directory =)
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16:39 | brilliant, thanks
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16:40 | <vagrantc> they're just plain sh scripts, not bash, make sure they handle errors
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16:45 | * vagrantc wonders how useful it would be to have ltsp-pnp support in the udeb | |
16:46 | <vagrantc> i.e. to be able to install from debian-installer
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16:48 | i should really test the udeb more...
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16:56 | <gbaman> vagrantc: any chance you could hop over the #raspberrypi channel? Got someone trying to figure out graphics issues and asking questions about the kernel image you gave me
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16:56 | <vagrantc> i didn't give you any kernel image
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16:56 | <gbaman> didnt you?
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16:56 | <vagrantc> no
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16:56 | <gbaman> LTSP didnt?
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16:56 | <vagrantc> no
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16:56 | <gbaman> so where did it come from?
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16:56 | <vagrantc> raspbian
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16:57 | <gbaman> raspbian has aufs built in?
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16:57 | <vagrantc> this is a question for #raspbian
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16:58 | * vagrantc is kind of weary of rpi related questions | |
17:00 | <gbaman> vagrantc: sorry for being a pain. Just trying to get this to all work nicely :)
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17:02 | <vagrantc> i know, i know... and i keep getting drawn in ... but really, they need to make rpi2 armv7 and actually commit to free-er hardware...
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17:04 | <gbaman> sadly I cant change that
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17:04 | I can only work with what i have got
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17:04 | It has still gained considerably more traction than any other tiny computer community by a long way
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17:06 | and broadcom did just announce the release of a pile of their originally closed source bits of GPU code few days ago
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17:06 | so it is getting more open
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17:07 | <vagrantc> yeah, it's one of those sad victories that it's become so popular
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17:15 | <gbaman> ok, tried with the kernel image from a normal sd card
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17:16 | and passed it boot=nfs init=/sbin/init-ltsp nfsroot=10.0.5.155:/opt/ltsp/armhf
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17:16 | it gets stuck
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17:16 | no hint of it searching for the server
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17:18 | so does that mean I need to be using a kernel image that is 3.2+?
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17:18 | <alkisg> With the newer kernel you're expecting faster graphics? Or is that the xorg version?
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17:19 | <gbaman> with the newer version, it would be nice if gpu accelerated applications actually load :)
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17:19 | <vagrantc> gbaman: you also need an initrd built for that kernel
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17:20 | <alkisg> What xorg version does the local image have, and what xorg version does your ltsp installation have?
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17:20 | <gbaman> ok vagrantc, will the one used for 3.2 work for this/
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17:20 | ?
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17:21 | keep in mind gbaman = noob at kernel related stuff
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17:22 | <vagrantc> isn't the 3.2 one the one that didn't work for you?
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17:22 | <gbaman> yes
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17:22 | <vagrantc> i don't understand your question then; it seems like you already have the answer
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17:23 | <gbaman> right, what do I need to boot using 3.1 kernel via LTSP on the boot partition?
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17:23 | config.txt, cmdline.txt + all the blobs
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17:24 | <vagrantc> kernel and initrd built using those kernel modules
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17:24 | <gbaman> ok
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17:24 | <vagrantc> sudo ltsp-chroot apt-get install linux-image-rpi-rpfv
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17:25 | copy the /boot/vmlinuz-* and /boot/initrd.img-* to your SD card, edit config.txt to use the verison you want...
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17:25 | should be as simple as that.
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17:25 | <gbaman> ahh
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17:25 | ok
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17:25 | sounds too easy :)
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17:26 | <vagrantc> you might want to run "ltsp-chroot apt-get update && ltsp-chroot apt-get upgrade" first.
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17:26 | this assumes the rpi chroot is your only LTSP install...
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17:26 | <gbaman> it is
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17:27 | <vagrantc> otherwise you'd have to tell ltsp-chroot which chroot to use
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17:27 | <gbaman> wont be an issue, right? /bin/df: Warning: cannot read table of mounted file systems: No such file or directory
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17:28 | <vagrantc> i've never seen it be an issue
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17:28 | <gbaman> ok, cool
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17:28 | is humming away installing it now
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17:28 | <vagrantc> *maybe* that'll fix your problem. who knows.
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17:28 | gbaman: but most of these questions should be in #raspbian or #raspberrypi
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17:29 | * vagrantc needs to document using the beagleboneblack with LTSP ... | |
17:29 | <vagrantc> should try and get video working on the wandboard-quad, as those would make reasonably nice fatclients.
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17:30 | and i'd like to explore the cubox-i machines, too
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17:31 | there's a single-core cubox-i for ~$50USD, i think, that might make a nice thin clientt
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17:31 | and a quad-core cubox-i for ~$150USD that'd make decent fatclients.
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17:33 | <gbaman> and we have a booting pi :)
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17:35 | HAHA!
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17:35 | it works!
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17:35 | we have graphics accelerated stuff!
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17:35 | awesome!
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17:38 | <vagrantc> yay.
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17:38 | so, you could update the ltsp installation instructions to pull in linux-image-rpi-rpfv instead of whatever they said to use
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17:39 | <gbaman> http://imgur.com/Tc3RZUK
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17:39 | all is good now :)
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17:40 | well, what I had done vagrantc is basically copied the entire boot image onto the repository and it pulls it from there :)
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17:40 | really bad I know :)
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17:42 | <vagrantc> yeah, awful
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17:43 | but whatever breaks, er works for you!
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17:54 | <gbaman> ok, onto next bit now
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17:54 | way for teachers to manage it all
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17:57 | I have a kernel.img
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17:57 | is it actually using that?
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17:57 | and an initrd.img?
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17:57 | and a vmlinuz
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17:58 | ignore that
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17:58 | apparently not
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18:09 | <vagrantc> gbaman: if you followed my howto, you would edit config.txt to change the kernel/initramfs, if i remember correctly
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18:10 | <gbaman> i got it sorted
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18:12 | <gbaman> now having an issue that the server cant open my .img file..
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18:12 | <vagrantc> can't open?
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18:13 | <gbaman> mount: wrong fs type, bad option, bad superblock on /dev/loop0,
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18:15 | is easier said than done to create a .img on a mac..
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18:15 | <vagrantc> this is the SD image?
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18:17 | <gbaman> the way I do the boot image currently, is it sits on github as boot.img, server downloads it, mounts it, changes IP address unmounts it and presents it to the user to flash onto an sd card
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18:17 | just cant remember how I create the initial image :)
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18:18 | * alkisg doesn't like having the IP in the command line... | |
18:18 | * vagrantc neither | |
18:18 | * gbaman neither | |
18:19 | <gbaman> where else could it go?
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18:19 | <vagrantc> dhcp
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18:19 | <gbaman> auto finding?
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18:19 | have a way to do that yet?
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18:19 | <vagrantc> haven't looked at it in ages
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18:19 | <alkisg> That's the default in non-PI images, I've no idea how PIs work...
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18:19 | <vagrantc> few people do
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18:19 | <gbaman> :D
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18:20 | <alkisg> Loading the kernel/initrd locally and doing a dhcp request should get the server IP...
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18:23 | <vagrantc> right...
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