IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 21 September 2010   (all times are UTC)

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02:02
<gnunux>
hi
02:03
<alkisg>
Good morning
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02:30
<dserban>
I wonder, is it possible to setup a secondary chroot simply for recovery purposes? There are some systems here that are not on ltsp, but I hate running around with rescue cd's and usb drives to recover whatever, or test memory, or test disks... etc. Can it be done?
02:32
<muppis>
Sure.
02:32
<alkisg>
dserban: http://users.sch.gr/alkisg/tosteki/index.php?action=dlattach;topic=2828.0;attach=1672;image
02:35
<sweetpi>
dserban: here we use PXE to boot memtest and hdd diagnostic tools and live os for recovery
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02:41
<dserban>
alkisg: thanks for the link
02:41
sweetpi: what type of tools and distro?
02:42
wow alkisg that's pretty cool
02:43
may I ask why you provide your users so much choice?
02:43
<alkisg>
dserban: I don't, that menu is only shown when I want to show it (I select that from my laptop == moving ltsp server)
02:45
<sweetpi>
dserban: mainly the mfgr hdd tools, but a few others I cant remember the name of(dont use them). as for distro, its a custom live debian and *sigh* windows
02:45
<dserban>
so those are specific nbd images then, how do you trigger the menu to pop up? oh.. in the pxe setup duh.
02:45
sweetpi: I see
02:47
so do all of you find that 100mbit seems to be enough for every day use when running a thin client setup? I believe I have to rework my network to handle the higher demand, the server is barely taxed, but the clients respond slowly to simple tasks like typing...
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02:48
<dserban>
I've been using ltsp with ~ 40 users for the last couple of months, I keep telling them it's going to get better, ... I just don't know how yet :)
02:48
<alkisg>
100mbit? no, surely that's not enough
02:49
Gigabit is required, at least from the server to the switch
02:49
<dserban>
well the uplinks from each client, the server to the switch is a 4gbit link (aggregated)
02:50
Problem is that our voip phones get in the way, we have the capability to go gigabit from the client to the switch, but with one port, the thin client plugs into the 100mbit switch on the phone.
02:50
which... is ... lame.
02:51
thought about adding 100mbit nics to all of the thin clients so that I may bond the two interfaces... the 100 mbit to the phone, the onboard to the wall. Though after researching it a bit, it seems that I may have troubles setting it up for the ltsp clients
02:51
sorry I meant to say bridge the interfaces
02:53
Apart from all of that, I remember reading something about running some sort of traffic stat program for each client. Do you remember where that's documented?
02:54
<alkisg>
On mix speed networks it's important that you disable flow control, otherwise the lower speed is used: https://help.ubuntu.com/community/UbuntuLTSP/FlowControl
02:55
<dserban>
I did that on the server.
02:56
<alkisg>
You can use netperf or iperf to monitor the actual network speed
02:57
<muppis>
And nethogs shows per connection.
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05:17
<mnemoc>
hi, in ubuntu 10.04, ppa:revolution-linux/ppa is supposed to be used in the host or in chroot? or both?
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05:27
<elias_a>
Folks, How does one resolve the opening of PDF files in a Local Apps browser?
05:28
There seems to be a problem with Acrobat Reader...
05:28
http://marc.info/?l=ltsp-discuss&m=127565968923168&w=2
05:29
<muppis>
Installed evince to chroot
05:29
<elias_a>
muppis: And it works?
05:30
<muppis>
So far.
05:30
<elias_a>
muppis: You're a Finn, right? Are you on the Educoss mailing list?
05:31
<muppis>
elias_a, yes, but I'm not on that list.
05:31
<elias_a>
muppis: There's quite a lot about LTSP on it. You are most welcome if you would like to join us.
05:35
<muppis>
elias_a, thank you. Joining can be more topical if/when we plan productize ltsp more. This was first time to us and it's has been only two weeks in production use.
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05:58
<asachs>
anyone have tips on debugging why local apps wont run (Ubunutu 10.04.1, LTSP 5.2.1) ?
06:01
<mnemoc>
try running it frm a terminal instead of clicking and see what says
06:01
<asachs>
mnemoc: terminal itself is not a local app, your saying that it will try to behave like a local app if started in the terminal ?
06:02
<mnemoc>
a local terminal :)
06:04
tty2, export REMOTE=:0.0 (or whatever the client image uses) and run the app
06:04
err, DISPLAY
06:04
need coffee :(
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06:14
<asachs>
mnemoc: thanks will give that a go
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06:38
<asachs>
mnemoc: wonderfull vty's are not showing up, looks like its gonna be one of those days :)
06:40
<alkisg>
!localxterm
06:40
<ltspbot`>
alkisg: "localxterm" :: while sitting on a thin client, open a gnome terminal. In that, run: ltsp-localapps xterm. An xterm will open. That xterm runs locally, so any commands you enter there are executed directly on the client.
06:44
<mnemoc>
nice
06:44
alkisg: thanks for the hint :)
06:45
<alkisg>
np
07:09
<asachs>
looks like xprop is not starting anything when asked, so ltsp-localapps xterm does nothing. is there a log for the things its calling into ? (xatomwait or ltsp-localappsd)
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08:46
<mnemoc>
hi, i'm ashamed of my ignorance, but having ssh access to an LTSP server, how can I test what thin-clients will see?
08:46
from my desktop
08:46
xnest or something like that?
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09:10
<cyberorg>
mnemoc, you want to see what is on the client screen?
09:11
<mnemoc>
cyberorg: no no, far more basic than that, I want to see a desktop as i would be a thin client
09:11
ldm and all that jazz
09:11
<cyberorg>
you want to test client from the same server?
09:12
<mnemoc>
from my notebook, but having only ssh to reach the server
09:13
<mgariepy>
mnemoc, can't you use a virtual machine on your notebook ?
09:13
<mnemoc>
i'm on a different contient... and the java console of the kvm isn't really nice :(
09:13
<ogra>
set up a virtualbox on the server
09:13
ssh -X user@server virtualbox
09:13
<cyberorg>
hi ogra :)
09:13
<ogra>
configure it as client
09:13
will be dead slow but show you want a client sees
09:13
<mnemoc>
cool, nice idea
09:13
<ogra>
hi cyberorg
09:14
<mnemoc>
ogra: thank you very very much
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15:26
<dserban>
mnemoc: I do it the other way, I fire up virtualbox on my local workstation, set it to boot from the network, and I'm golden. Takes like 30 secs to setup.
15:27
vagrantc: do you know if it's safe to go to squeeze as far as ltsp is concerned?
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15:32
<vagrantc>
dserban: either that, or ltsp with lenny-backports
15:33
dserban: my test systems seem to mostly work ok, but i haven't really done any real-world testing
15:36
<mnemoc>
dserban: the problem is that i don't have access to that network beside ssh to the server
15:38
dserban: i'm 12000km away :)
15:41
<alkisg>
mnemoc: neatx + vbox here for the same reasons...
15:41
Tried on dozens of labs, works great
15:42
(vbox on the server, not locally)
15:43
<mnemoc>
ah, got it
15:43
why vbox instead of kvm?
15:43
better pxe?
15:44
<alkisg>
Never used kvm, can't compare, but vbox was easy for me (I came from a windows/vmware world)
15:46
<mnemoc>
any suggested reading for using neatx with ubuntu's ltsp?
15:47
i was about to do vbox@server + vnc, but neatx sounds much better
15:47
<alkisg>
sudo add-apt-repository ppa:freenx-team
15:47
sudo apt-get update
15:47
sudo apt-get install neatx-server
15:47
The server's ready
15:47
<mnemoc>
:o
15:48
<alkisg>
Then just download the client from there: http://www.nomachine.com/download.php
15:48
<mnemoc>
awesome
15:48
thanks!
15:48
<alkisg>
If you really want to read more (no need), https://help.ubuntu.com/community/FreeNX
15:49
neatx is much, much faster than vnc, especially over the internet
15:49
It also gives you a new session automatically
15:50
<mnemoc>
perfect
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16:26
<vagrantc>
alkisg: i'm thinking it would be really useful to have an ltsp-chroot --all-chroots option or some such
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16:27
<vagrantc>
i.e. for apt-get update, apt-get upgrade, etc.
16:27
<alkisg>
vagrantc: I agree... or maybe some config file?
16:28
Ah, --all-chroots sorry
16:28
I just read the "--all" part :D
16:28
<vagrantc>
well, sometimes i'd want different chroots configured differently, but sometimes i want to do the same thing in all available chroots
16:28
<alkisg>
(I thought you meant to use some options like --mount* by default)
16:29
<vagrantc>
i've got a fat chroot and a thin chroot on the same server, for example ...
16:29
<alkisg>
Right, that shouldn't be difficult, and it sounds useful (although I never use more than 1 chroot in schools...)
16:29
<vagrantc>
sometimes i just want to add a package to one, but apt-get update/upgrade are common commands i find myself typing
16:30
i'll try and work on it friday, maybe...
16:31
<mnemoc>
alkisg: do you know any irc channel for neatx problems? I fail to see what's the error (full paste from syslog http://nopaste.opensde.net/?ZGVjZG)
16:34
<alkisg>
mnemoc: no idea, both for the channel and the problem, I never had problems with neatx not starting...
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16:50
<cole2>
Hey everyone. Is there a way to stop every user on clients from getting a "Not Authorized" message when USB Disks are plugged into the server?
16:52
<alkisg>
vagrantc: maybe a new "ltsp-update-chroots" command would be easier? I think it'll be handy for non-sysadmins...
16:52
(of course it would call ltsp-chroot internally)
16:52
<vagrantc>
alkisg: ah, yes... i like it.
16:53
<mnemoc>
i wrote one script named exactly like that :p
16:54
<alkisg>
(or maybe upgrade is a better word than update)
16:56
I'd like it if by default it did everything for the novice user, i.e. mounting the server package cache + running ltsp-update-image --force where applicable...
16:57
(and had options to prevent those defaults)
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17:03
<alkisg>
Goodnight all
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17:12
<cole2>
Anyone?
17:13
<johnny>
cole2, never seen it
17:13
don't know what to say
17:13
migth want to post on ltsp-discuss
17:13
did you also look for a ticket on launchpad?
17:15
<cole2>
No, Im new to the "getting involved" side of things
17:20
<johnny>
hmm?
17:21
getting involved in what way?
17:22
bb in 20
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17:29
<cole2>
away:
17:29
:away
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17:46
<cole2>
Didnt miss much
17:56
<johnny>
so.. "getting involved" ?
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18:54
<cole2>
johnny, Hey. Yea Normally i just research as much as i can and work through problems on my own. But this time i need assistance
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