this is a crude implementation of an idea i had a long time ago that i finally got around to: http://paste.debian.net/222662/
essentially, it downloads the entire NBD image into ram!
vagrantc: ||cw with previous ubuntu version there was no problem, with 12.04 there is
so don't know if ServerAlias * has been removed because is better set something else different and this is just a (wrong) workaround
I've to go to sleep, I know that is the solution, but don't know why :)
otherwise in cups error_log you find lines like
E [06/Jan/2013:13:09:44 +0100] Request from "192.168.20.104" using invalid Host: field "server"
maybe some ltsp script must be fixed with newer cups?
if some ltsp guru could investigate and solve in a cleaner way I would be happy
good night :)
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has anyone ever made a bluetooth headset work as an audio device?
with an ltsp client?
If it works with Pulseaudio, it works in ltsp as well. At least in Ubuntu.
it claims its setup
and it looks setup like a normal desktop would be
i'm just not seeing it in my pulseaudio loist
it shows blueman as a client but i don't see it as a source or a sink
Wierd. I don't have any experience from bluetooth audio in linux at all so I made some assumptions about how Pulseaudio works in between ltsp and normal system.
As so far it's has been gone that way. If it works with Pulseaudio in normal, it works with ltsp. Maybe it requires some piece of software to client to make it work.
Like some bt audio daemon.
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Heloo evrey one , i want to dissable usb divice in ubuntu ltsp-cluster please help me .
i don't know about ltsp-cluster, but in regular ltsp you'd configure LOCALDEV_DENY_USB=true
so however ltsp-cluster sets those variables
sbalneav: hi - about LP: #1072711, I think the proper way to solve it would be to make ldm run outside the X session (and only the greeter inside it),
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but since that's unlikely to get implemented, I'll revert LDM r1454 and do a saving/restoring of the environment from shell scripts, ok?
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thanks for reply me , but i in ltsp-cluster there are regular lts.conf file is not working
in ltps-cluster where i will found LOCALDEV_DENY_USB=true that option
please tell me
alkisg, hi. :-)
Saw your message about the Greek schools
Give me a bit more time please. And I'm talking weeks here, not days. ;-)
Hope to get to it before next meeting.
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So after a bunch of trial, I ask my question again. has anyone been successful with getting a bluetooth headset to work with an ltsp client?
fuzai, sounds no more difficult than getting a bluetooth headset to work with regular Ubuntu really.
pulse audio seems to see the clients, but doesn't setup sinks or sources for the bluetooth
I think there is some dbus permission problem
because I can only run the bluetooth applications as root
after i add dbus-x11 and gconf2 and blueman i can usually get their console to pop up and pair with the device
Hyperbyte: ok - I'll make a note for greek teachers that want to put their schools on the map to wait for a few weeks - ty
and i've installed the bluetooth / pulseaudio library
and i'm pretty sure that pulseaudio is configured per user
but on that note i can't seem to figure out how to restart pulse audio if it is the problem
i've tried relogging in after the terminal is paired with no luck
i'm kinda out of ideas to try
fuzai, pulseaudio on the client runs a bit differently than pulseaudio on a regular desktop system. Generally, pulseaudio runs as a process/module in the users' x11 session
ok i guess the real question is
With LTSP, pulseaudio runs as a system daemon on the thin clients.
i can run blueman as a user on a normal ubuntu desktop but not with ltsp
i would assume if i can get those to run as a user and not as root that pulse might cooperate a little better
how do i get blueman to run as a user
and disable what i believe are dbus permission problems
I could pastebin what i'm seeing as errors. It's alot of python, so most of it is greek to me
Well you're in luck
alkisg is from Greece
Sounds like I came to the right place
i'm going to reboot this client again and collect a bunch of data I guess
Anyway, sure, pastebin errors....
theres just alot of them from various angles
I know zero about python and zero about bluetooth on Linux
well i guess were even then
But I suppose some people in this channel might have some idea, so errors can't hurt.
here i guess i might be able to give the cliff notes to this
thats what happens when i try to run a blueman-manager as a user
as root that will work and pair only after dbus-x11 bluetooth and gconf2 is installed and dbus and bluetooth services are started
Looks like it's problem with /usr/sbin/bluetoothd service
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yea a permissions problem
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i added my user to the uucp group on the ltsp client and that seemed to help something
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Hyperbyte: is the map down? http://www.ltsp.org/stories/
OK it's up again... maybe ISP problems
i think i figured it out
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hi alkisg, fat can't see printers until I add ServerAlias * to /etc/cups/cupsd.conf wondering if they removed from stock config for some reasons I ignore and what is the "new way" to make it work except this "trick"
in cups error_log I had this before: E [06/Jan/2013:13:09:44 +0100] Request from "192.168.20.104" using invalid Host: field "server"
just in case it triggers you some idea ;P
(I'm at work, I read the chat sometime, will read later if you post)
That's because you don't follow the sch-scripts wiki :P :D
I.e. to name your server "server"
alkisg: I thought that was a "client side" stuff, i.e. done automatically
(I mean, fat clients can ping "server" and have it respond)
(even if server is called "myowncoolname")
markit: yes, the problem is that the server doesn't know what "server" is
mmm I tried to add also "server" in /etc/hosts
So the cups client tells the server that it wants to contact the server named "server"
..and the server says, "what? I don't know anything named server"
alkisg: well, first you should change name convention from "server" to "ltspsrv" or something less frequent and confusion-prone ;P
You can put "server" in the server /etc/hosts if you want, that'll work around the problem
I tried but did not worked
markit: not my call, the clients have known the ltsp server as "server" from the dawn of time... before I joined ltsp :D
well, was late night and was tired...
alkisg: yep, I mean "you = general"
markit: well, the real solution is to put serveralias * in the server cups configuration
Or, to tell the clients the real hostname of the ltsp server
ok, so the real new thing is that default config once had it and now has not, I think
alkisg: well, btw realy clients should call it with it's real name and not "server"
ok, thanks a lot for the clarification
markit: but then if you change the hostname you'll need to change the sshkeys + update the image too
Because now, with hardcoded name == server, you don't need to
yes, every decision has pros and cons, and of course you notice a lot cons and think that pros are "normal" "just works"
(I really rarely change servers' hostname)
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Hyperbyte: a person here is trying to add some coordinates as the location in the stories form, and the decimal digits are changed, maybe you declared those vars as single precision? If so, can you change them to double precision?
Hyperbyte: location (38.291088,21.7964) gets transformed to (38.29525, 21.79316)
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alkisg, long/lat are columns with data type "decimal(8,5)" in MySQL
Hyperbyte: but in php?
That's a very good question.
You don't declare variables in PHP though, PHP just works that out by itself.
Maybe I'm executing some function over it that screws it up.
I think it's a whole different problem
Hyperbyte: he's reporting that it might have something to do with the map data as well
I.e. in some places it works, in some it doesn't
I think the problem is that the Google Maps interface snaps to roads.
Could that be it?
Maybe you're running something like "google_find_nearest_place()" ?
It might, yes
I'm not running that, no... but, I do run functions that interpret the input and convert it to long/latitude
It stands to reason that Google does some converting there
Hyperbyte: but if they're long/lat, maybe you could store the original, untranslated numbers
So that if google maps later on finds out that there's a road there, it'll snap it correctly then
I don't think it's that big a problem really
My marker is about 100 meters away from my office too... so is the radio studio, there it places the marker on the parking lot in front of the door
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Hyperbyte: siahos1 reports that the pin gets located 1 km away from where he puts it
Not just 100 meters...
Hey siahos1 :-)
And if google truely pins to roads, then it'll be an even bigger problem if it doesn't have any nearby roads in its database
The pin might get many Km away
There are no nearby roads
You'll see the green marker (that's the query) and the red A marker (the result)
in my case I have an error about 900m
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There it has many Km error
So I think you should be storing the original values, not the ones returned by google...
Yes, but then I need to check if the original values are correct long/lat
Because it's made like this:
- send query to Google
- use whatever long/lat it returns
I don't check the original query. If somebody enters "Greece", Google returns long/lat for what it considers Greece
It wouldn't be hard to check if it's valid long/lat
How about I post the script, and you guys revise it? :-)
Actually basically it's really simple
I have a function setMapAddress
Which gets 'address' as parameter
Then it does the Google query.
At the start if the function it should check "is address valid long/lat?" "if so, skip to the end"
Put it to pastebin
Mucho easier. :-)
|12:37||* alkisg postpones fixing the sshfs problems for yet one more time ... :(|
Hyperbyte: is it possible to get access to the server so that I don't have to set up a debugging environment?
isValidLongLat() or whatever
Maybe Google's API has that already
I don't have time to dive into the API
And I believe you have an account on server.ltsp.org, don't you?
You set up the bot there didn't you?
No, we did that with a shared screen if I remember well
I have a function that gets the field input as input, setAddress.
Then you just have one function you can run function tests on
latitude = Math.round(latlng.lat() * Math.pow(10,5)) / Math.pow(10,5);
E.g. could it be that it's not a google problem, but a rounding problem?
I don't buy that
900 meters is not a rounding problem
Especially not when it works much closer everywhere
And it snaps perfectly to roads....
I'll edit the .phps
I think that the above mentioned calculation is the one that enters "noise" to the estimation of the exact location
It's like trying to hide the real coordinates deliberatelly
alkisg, the .phps is now stand-alone.
Or should be.
Doesn't even require .php anymore
siahos1, no, what it does is round the long/lat numbers to 5 numbers behind comma precision
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siahos1, I'm not hiding real coordinates deliberately. Just had to choose what precision to give the numbers and that was it.
Maybe 6 would've been better, but alas.
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Hyperbyte: Yes I understand the estimation, but when it gets 38.291088 as a parameter (5 decimals) why it turns it to 38.29525
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siahos1, it snaps to roads. You pick a location, and Google changes it to the nearest road
Alkis is working on fixing that though. :)
I do appreciate you entering your success story and going through all the trouble to come here to explain what's going wrong
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Hi my LTSP server gives out DHCP to the whole office for everything. It keeps dropping connection to the internet every so often for 5 mins. How can I stop this?
Stop what? Dropping your internet every so often?
How are you so sure that your LTSP server is responsible?
cos i set it up
im not good, but it has dropped the connection, we had no internet, I reset the server and hey presto the internet came back
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Hi sbalneav, hi all
sbalneav: I've almost implemented a fix for https://bugs.launchpad.net/ltsp/+bug/1093144
By saving the environment at the LDM session phase,
and by restoring it at the stop phase + executing the cleanup scripts there,
Did the not terminating the socket help?
and by moving the stop phase outside of ldm
sbalneav: the socket was only 1/100 of the problem... so I didn't even test it
The actual problem was that the cleanup bits were running at the wrong place
So even with the socket alive there, they'd have the same problems
sbalneav: but btw, I am planning on moving the socket closure so that it's closed even if X crashes
I.e. from an ldm/rc.d/K* script
I hope that doesn't have any unwanted sideeffects...
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sbalneav: If you do have some time for LTSP, here are some bugs where your help would be much appreciated: 693151 (patch included), 1017871, 1094899 and 1094998
All of them require knowledge that the currently active ltsp devs don't have... :-/
I am baffled by USB printing edubuntu 12.04 lts , network printers work fine
on the client getltscfg -a | grep PRINT
PRINTER_0_DEVICE = /dev/usblp0
PRINTER_0_TYPE = U
PRINTER_0_DEVICE = /dev/usblp0
PRINTER_0_TYPE = U
I think it's some jetpipe thing
everything reports printing is working job completed but nothing comes out
been trying things listed here
Since you say you have a subdirectory there...
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tada . problem solved thank you
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Hyperbyte: function checkAddress() in http://paste.ubuntu.com/1509817/
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alkisg: you know anything about the reasons why LTSP is so pervasive in Greece?
why did policymakers choose the thinclient/opensource direction
money? maintainability, or also security
knipwim: 5 years ago there was a pilot program, testing ltsp in 20 schools
They gave an ltsp server to each school that wanted to test linux
I applied for that, and my school got accepted for the program
The other 19 schools only used ltsp a bit... you know the results about my school :)
Next year, I got to be part of the ministry team that did the pilot program
Since then, I've been pushing ltsp however I could
so it's all your fault?
Nope! but I did play my part in spreading it...
I'm wondering how to make it more popular in the Netherlands
E.g. I have a forum where greek IT teachers chat, with 6+ million hits so far,
Well, since we started chatting about ltsp there, they had to try it :D
we're very good in finding reasons not to change something
Automation + software repositories + manuals also played a big role
what we need is an article, something like: Greece: The road to recovery and how LTSP helped
E.g. now with apt-get install sch-scripts they have their "server" ready,
...and with apt-get install gymnasio they have 5 gb of edu software installed
We've also published a lot of papers and done a lot of workshops
E.g. in 20 cities the last 2 months, with about 50 IT teachers in each city
alkisg: those papers probably helped alot inside Greece. It'd be nice to have some papers for the rest of the world to see how it's worked
jammcq: some of them are in english, in international magazines
jammcq: "The linux terminal server project: thin clients and linux"
looks like yours
4th hit in scholar.google.com for Linux Terminal Server Project
...they seem to not give a full version though
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vagrantc: https://code.launchpad.net/~vagrantc/ltsp/ltsp-debian-packaging ==> The import has been suspended because it failed 5 or more times in succession.
alkisg: can you get to the source?
alkisg: it's a mirror of something on bzr.debian.org
Hmm I thought we had fixed that part some time ago..
probably something changed at either launchpad or bzr.d.o side
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vagrantc: I'd ask in #launchpad if you have some time for it...
Since you are the owner and can change/test stuff
probably not today
vagrantc: ah, never mind
I pressed "try again", and it succeeded
Might have been some temporary networking problem, and it stopped trying
(the ldm branch first, now doing the ltsp branch...)
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vagrantc: http://bzr.debian.org/bzr/pkg-ltsp/ldm/ldm-debian-packaging works while http://bzr.debian.org/bzr/pkg-ltsp/ltsp-debian-packaging doesn't - is an "ltsp" missing from the last one?
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is LDM_DIRECTX still in order? it looks like I'm still logged in over ssh even though I have LDM_DIRECTX=True in lts.conf
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yalu: that's correct, ssh login is used even with ldm_directx=true
Because we want the authentication part to be secure, and just the X traffic to be unencrypted
It's not XDMCP, it's ssh + direct X, not over the ssh tunnel
so ssh but with a different $DISPLAY and transferring of X cookies I presume
I'm looking to help installing some form of thin client installation in a school in Nepal somewhere in the following year. Maybe it will be ltsp-based, maybe not. it seems a popular thin client model over there is based on arm cpu's
For netbooted linux installations, ltsp is very nice
but for now I'm just trying i386 based machines as client
I used ltsp at home in a past life, it has become a lot more flexible and straightforward. I still have some issues with sound forwarding though
I haven't heard of any recent sound issues...
It's supposed to just work
well I made a post tot the edubuntu-user ml earlier, we'll see if anyone had the same problem. it's not entirely reproducable and a little sparse on errors
Do you have a sound device on the VM server?
And, does a local amixer see your sound device?
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well on the server I disabled audio (it's a virtualbox vm) but there is a /dev/snd/seq and timer, on the client in a debug console I can open alsamixer and see the devices
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can someone help me
|21:48||ltspuser_67 is now known as DiGiWoLf|
there is someone aviable to talk????
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ask: Don't ask to ask a question, simply ask it, and if someone knows the answer, they'll respond. Please hang around for at least a full hour after asking a question, as not everybody constantly monitors the channel.
im working with ltsp some years now
but yesterday the dhcp server stop to deliver the ip addresses
i reinstall the server completely
but the problem continue
i check the network card and its fine
i change the dhcp to dnsmasq
and when i configure to lstp options do the same thing
stop to deliver ip addresses
it's not a broken cable, or perhaps broken client network card?
do u have any idea????
no ´cause its happens with all clients
and i change the cable too
why did it fail all of a sudden, did you upgrade or change something?
just the lights off
and the energy buckup turn off
but i reinstall the whole system
yalu: LTSP can run on any architecture
have you tried connecting a "normal" computer to the server, and see if that gets an ip
(to exclude LTSP from the context)
|22:04||* vagrantc spent the last couple weeks getting LTSP working with raspbian and the RaspberryPI|
no im going to try it now
i've tried berryterminal, but it didn't boot :(
well, raspbian should work essentially out of the box now.
oh, you have to specify which kernel to download
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and manually copy the kernel + initrd to the SD card for booting ... no network booting
|22:06||* vagrantc tried petitboot and pxe-kexec but kexec didn't seem to work well enough for either to work.|
and you boot with init=/sbin/ltsp-init ?
knipwim: it just finally got a kernel that's good enough
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nice, maybe get to work on it for gentoo in the weekend
but first, bedtime :)
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vagrantc: raspbian: cool, I got to remember that. I looked at berry terminal, still have to test drive it
so raspbian can be installed on an ssd or something and then you need to build an ltsp client image on the raspberry?
you can build a more conventional LTSP environment on an i386 or amd64 server, and then just copy the kernel and initrd to SD
it supports cross-architecture arm chroots
i.e. on my amd64 server: apt-get install qemu-user-static ; ltsp-build-client --arch armhf --dist wheezy --mirror http://archive.raspbian.org/raspbian ...
you need to download the raspbian keyring, also.
you could actually put the whole LTSP image on SD, too.
i'll writeup a howto this friday and post to ltsp-discuss
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anyone around ?
i am, i'm not much of a help though
ever had any issues with scanners going through LTSP ?
usb ones that is :)
|23:38||Phantomas has left IRC (Phantomas!~Phantomas@ubuntu/member/phantomas)|
ah no, i only have network scanners
got them working ok ?
oh yea, just great, but it's not usb :)
so i'm not dealing with local devices :)
but i mean, like i said, i'm not the guy to bug
|23:40||ltspuser_99 is now known as Tommy100|
yuo followed the ltsp website stuff on ubuntu?
that is like my bible then i look around for blogs
then i come here and bug as many people as possible :)
i bet everyone is asleep
it pulls in all other USB devices, just not the epson scanners :)
they all need to wake up
i got brother mfc's over ethernet and brscan3 w/ xsane
they are fairly inexpensive and work well so far.
and my staff loves them.
well, they don't do cardstock or legal.. but other than that the staff likes them.
er wait, maybe it's just cardstock they dont' do
i had a HP's.. and everyone hated them
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sry accidentally closed irc
hrmm, yeah these are meat to be dine with xsane, but no joy
could try another scanner I guess
something not right in LTSP i think
yea, wait till yuo talk to alkisg and the othre guys before you toss anything out