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


Channel log from 27 March 2014   (all times are UTC)

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06:34
<work_alkisg>
nroussi: pastebin your lts.conf or whatever other configuration -cluster uses
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07:08
<helpmepls>
hello guys
07:09
Can someone help me with creating an bootscreen under debian ltsp?
07:09
I would like to hide the bootlines after loading the pxelinux.cnf
07:18
<alkisg>
First do it under debian/syslinux, then come here to ask the ltsp parts
07:20
<helpmepls>
I did that
07:20
with plymouth
07:20
And it worked
07:20
But ltsp uses pxelinux
07:20
<alkisg>
What was your syslinux configuration?
07:21
<helpmepls>
I did on the same ltsp server
07:21
<alkisg>
Did you install syslinux on the ltsp server?
07:21
<helpmepls>
no
07:21
<alkisg>
OK, then do it with syslinux first
07:21
<helpmepls>
The server is syslinux right?
07:21
<alkisg>
Not with grub
07:21
<helpmepls>
That was with grub
07:22
<alkisg>
Right, use syslinux, not grub
07:22
<helpmepls>
hmm
07:22
Can I use plymouth wit syslinux??
07:22
<alkisg>
Ask in #syslinux :)
07:22
I don't see why not...
07:22
<helpmepls>
okay
07:22
but #syslinux and #pxelinux are death....
07:23
There is no one online
07:23
<alkisg>
OK
07:23
<helpmepls>
I hate it when there is no documentation about this part....
07:23
<alkisg>
I don't think #ltsp needs to answer #syslinux questions though, just because #syslinux is dead...
07:23
<helpmepls>
Or almost nothing
07:23
<alkisg>
syslinux does have documentation
07:24
<helpmepls>
Yes but ltsp is using pxelinux right??
07:24
And I think someone else who uses ltsp has done this before under debian
07:25
<alkisg>
LTSP also uses .c, but it's not the appropriate channel for .c questions
07:25
<helpmepls>
I dont know what .c is
07:25
<alkisg>
C language
07:25
Programming
07:25
<helpmepls>
Like c++?
07:26
<alkisg>
I meant that for syslinux questions, ask syslinux, not ltsp. Even though ltsp uses syslinux.
07:26
<helpmepls>
but why is it loading pxelinux than?
07:26
When the thinclient boots up
07:26
<alkisg>
pxelinux and syslinux are the same project
07:26
For pxelinux questions, ask #syslinux
07:26
<helpmepls>
hmm okay
07:26
okay
07:27
Thank you!
07:27
I will check the channel
07:27
<alkisg>
OK... you can ask here too, sure, but it's just not the appropriate channel, so don't expect any answers...
07:28
<helpmepls>
Okay
07:28
But there are not much people unline now
07:30
<alkisg>
You can't be sure that you'll ever get an answer from IRC. If it works, ok, if not, you need to find some other way. Mailing lists, paying professional to do the work you want, whatever.
07:32
<helpmepls>
hmm okay
07:32
Is there any other chat program to ask for this problem?
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07:33
<alkisg>
No I don't think so
07:36
<helpmepls>
okay
07:36
thanks for the info
07:36
But where are you working for
07:36
If im free to ask
07:38
<alkisg>
I'm supporting ltsp installations for greek schools
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08:08
<helpmepls>
okay
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09:28
<helpmepls>
Can someone help me with creating an bootscreen under debian ltsp?
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13:41
<helpmepls>
can someone help me with creating a ltsp splashscreen?
13:44
someone??
13:48
<Hyperbyte>
There's no such thing as an "LTSP splashscreen"
13:49
It's something from your distro. If you're using Ubuntu, you should ask in #ubuntu.
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14:01
<nroussi>
alkisg: hello again. Cluster uses lts.conf that is autogenerated from a pgsql db. Upon rebuild of the image the getltscfg-cluster is not available in the chroot even though I build it like I always did with the argument --ltsp-cluster
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14:10
<alkisg>
nroussi: you don't have /opt/ltsp/i386/usr/bin/getltscfg-cluster?
14:16
<nroussi>
i'm booting the server now
14:22
alkisg: No I dont have that file
14:27
<alkisg>
nroussi: that file is part of ltsp-client-core, so something is very wrong with your setup
14:27
Want me to have a look?
14:27
nroussi: x11vnc -connect alkisg.dyndns.org , I'll be around for a few minutes...
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14:29
<nroussi>
do I just run that on the console of the server?
14:29
<alkisg>
Yes
14:29
If you don't have x11vnc, install it
14:29
Also, you need graphical console, not ssh shell...
14:30
<nroussi>
I dont have a gui
14:31
<alkisg>
sudo apt-get --yes install socat screen
14:31
socat SYSTEM:"sleep 1; exec screen -xRR ra",pty,stderr tcp:alkisg.dyndns.org:25547 & screen -l -S ra
14:31
That's for non-graphical connections... you'll see what I'm doing with SCREEN
14:32
<nroussi>
I just run it
14:33* alkisg didn't get a connection...
14:33
<alkisg>
Did you see any errors?
14:34
<nroussi>
no. I am running it over ssh. Should I run it on the console?
14:34
<alkisg>
No it doesn't matter...
14:34
<nroussi>
I am also behind a NATing firewall
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14:36
<alkisg>
That shouldn't matter either... but I'm about to change connections so let's leave it for another time
14:39
nroussi: delete ltsp-daily from your sources
14:39
It's only for testing
14:40
<nroussi>
ok
14:40
<alkisg>
The version there is incompatible with 12.04
14:40
<nroussi>
ok
14:40
<alkisg>
Then apt-get update; apt-get install ltsp-client=older-version
14:40
Same in chroot, if you have that...
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14:44
<nroussi>
alkisg: should I remove the chroot and build a new one or just update image?
14:45
<alkisg>
Build a new one, ok
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19:30
<joe_sizlack>
anyone happen to know if I add a static route to the chroot, will my fat clients pick it up?
19:30
or a param I can pass in the lts.conf?
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20:14
<ageis>
does increasing thin client RAM increase their performance, or is the bottleneck mainly on the host?
20:15
<joe_sizlack>
lots of things needs to be processed locally
20:15
<ageis>
ok so the answer is yes
20:15
<joe_sizlack>
more RAM would help, yea
20:16
<ageis>
ty
20:16
<joe_sizlack>
you can always check if you're bottoming out on RAM though before making any purchases
20:16
I would
20:16
<vagrantc>
ageis: depends on how much ram you're using now...
20:17
ageis: what numbers are you looking at upgrading from, and what do you plan to upgrade to?
20:17
<joe_sizlack>
you client maybe preforming fine locally now and you problems are coming from the network or somewhere else
20:17
yea, that
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20:17
<joe_sizlack>
vagrantc knows the things
20:17
<vagrantc>
some
20:18
<joe_sizlack>
do you know how I can add static routes to my clients though?
20:18
:)
20:18
<vagrantc>
ageis: are you planning on running localapps or fatclients? do your users use multiple browser tabs?
20:18
<ageis>
vagrantc: most of these have 512 or 1GB, but the server is like from 2007. so the option would be bring them all to 2GB, or replace ltsp server with a newer machine.
20:18
vagrantc: multiple browser tabs, sure
20:18
<vagrantc>
ageis: a few, dozens, or hundreds? :)
20:19
<ageis>
I just wasn't sure how it worked, since thin client processes seem to use memory on the ltsp server too
20:19
there's like between 15 and 20
20:20
<vagrantc>
ageis: sadly, even 512MB is getting to be a bare minimum even for straight thin clients
20:20
<joe_sizlack>
are you running into problems somewhere or planning ahead?
20:20
<vagrantc>
ageis: what kind of problems are you having?
20:20
<ageis>
client is dissatisfied with their performance and wants to improve. also planning ahead
20:21
so consensus is it would be good to have 2GB ?
20:22
<joe_sizlack>
If it's in the budget, I would have at least 1gig each, yes
20:22
but if you are having performance issues that might not be your magic bullet
20:23
you'll need to do some home work and see what is being exausted
20:23
<ageis>
I guess the best way to check how much mem each thin client has would be in BIOS right?
20:23
<joe_sizlack>
That's a way to see how much is in there, sure
20:23
<ageis>
is there another way? remotely?
20:23
<joe_sizlack>
but not how much is being used
20:24
You should be able to ssh to each thin client
20:24
from the server
20:25
<ageis>
yeah no I can't
20:25
<vagrantc>
sshd isn't enabled by default
20:25
<ageis>
openssh-server not installed in the image
20:25
<joe_sizlack>
oh
20:26
well, I'd install it :)
20:26* vagrantc wonders about using something like nagios to monitor that info
20:27
<joe_sizlack>
yea, I was thinking that recently
20:27
since I was pushing nrpe out everywhere else anyway
20:27
or munin
20:27
<ageis>
yeah I use nagios. that requires a little bit of development and some mods to the image though. I'll figure something out, thanks guys :)
20:27
we're probably gonna both upgrade the LTSP server and add some memory to the thin clients before 2015
20:28
or in 2015
20:28
<joe_sizlack>
always nice if it's in the budget
20:28
god speed, ageis
20:30
<ageis>
if the ltsp image is larger, does that just increase load time, not decrease performance? there's no way it could be loaded into memory...
20:33
<vagrantc>
it only loads the parts of the image that are actually used
20:33
<ageis>
like the kernel
20:34
<vagrantc>
more like your hard disk
20:34
<ageis>
but lets say I have a 2GB LTSP image, 512 RAM thin clients, that's no problem ?
20:34
<vagrantc>
the image size won't significantly impact the amount of ram used
20:35
it'll take longer to build, of course
20:35
won't really impact the ram on the client side, though
20:35
<ageis>
yeah I thought so. I am still not clear on how it all works, I am imagining a ramdisk
20:36
but they use a remote network fs so that makes sense
20:36
<vagrantc>
there's a little bit in ram, but only the files written to... files that are read-only stay on the server.
20:36
<ageis>
gotcha
20:37
<vagrantc>
i mean, you *could* load the whole image into ram if you really wanted to... there are some options to do so in recent versions
20:38
<joe_sizlack>
in other news, my HA setup is performing super well
20:39
I just added a S## ldm script to add my static route, btw
20:40
if anyone knows a better way, I'd welcome the input
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20:40
<vagrantc>
if you don't need the static route until the user is logged in, i guess that matters
20:41
<joe_sizlack>
well, it adds it when ldm starts
20:42
which is fine by me I suppose
20:42
if it's all the same though, I'd just have sooner than later
20:45
<vagrantc>
RCFILE_01 might work... not sure... there are plenty of other hooks
20:45
it's a question of choosing which
20:46
<joe_sizlack>
yea, I seen that in the man page
20:46
it wasn't particularly clear on the syntax though
20:47
RCFILE_01 = path_to_bash_script
20:47
?
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20:58
<vagrantc>
RCFILE_01 = /etc/some/random/script
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21:10
<alkisg>
joe_sizlack: RCFILE_01="ip route add..."
21:11
Meh got disconnected and didn't see that vagrant beat me :)
21:12
<vagrantc>
oh, you can specify full commandlines?
21:13
<alkisg>
Yeah since a few years...
21:13
Since the init-ltsp.d chnage
21:13* vagrantc feels like that is really new
21:14
<vagrantc>
heh
21:15* alkisg thinks many years have passed since the BTS I participated, but that's not true... maybe it's because I'm looking forward to participating to another one :)
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23:13
<gdi2k>
joe_sizlack, saw your comment earlier in the log that your HA set up is working well. Would be interested to hear what you have set up. I currently have 2 servers than sync via unison, and I use dnsmasq to send booting clients to either one server or the other, with a boot menu to allow the user to boot from the other server should their default be down. What's your set up?
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