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


Channel log from 25 October 2012   (all times are UTC)

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00:15
<andygraybeal_>
ch1KunpiZ3a
00:15
ah shit
00:22
<vagrantc>
time for a password reset?
00:22
<andygraybeal_>
working on it now.
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00:31
<andygraybeal_>
is the new ltsp running isc-dhcp-server ? or dhcp3 ?
00:31
cause i'm running 12.04, or trying to and i think it has both isc-dhcp-server and dhpc3
00:32
but 10.04 had dhcp3
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00:51
<andygraybeal_>
i cannot telnet to port 69 :( or i can't tftp to the eth1
00:51
192.168.100.2 is my eth1
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01:00
<JimmyNeutron>
What's the differences between ltsp-server and ltsp-server-standalone?
01:02
<vagrantc>
depends on what distro you're running, but the theory was ltsp-server-standalone would provide a complete server with DHCP and GUI sessions
01:02
and all the bells and whistles of an LTSP environment
01:03
ltsp-server would only provide the minimal environment necessary to build and network boot a thin client, not necessarily applications to run and so on
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01:04
<JimmyNeutron>
vagrantc, Thank You! I'm running Ubuntu 12.10 Server w/ no GUI interface
01:05
<vagrantc>
ubuntu historically put a bit too many dependencies on ltsp-server, in my opinion...
01:05
dunno what the current status is
01:05
<JimmyNeutron>
Which distro who you recommend if I was to run a server primary just for LTSP?
01:06
<vagrantc>
i'm biased, as i maintain the LTSP packages in Debian :)
01:06
<JimmyNeutron>
Currently, I'm doing some testing only, but haven't decide on which distro yet. I just want to make sure LTSP fulfill my goals
01:07
<vagrantc>
Ubuntu and Debian seem to have the best LTSP implementations, as far as i know. opensuse has kiwi-ltsp, fedora was lagging for a while ... gentoo had some recent progress ... no idea about other distros
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01:08
<JimmyNeutron>
Thanks for the info! I'll read on on Debian some more and compare it to ubuntu to see if there's any pros/cons. Main factor of course will be the community and which distro people use more. That would make it easier to get support if I run into any issues. :)
01:10
<vagrantc>
i suspect the ubuntu community is larger
01:10
though ubuntu and debian aren't so divergent
01:11
well, i guess with unity, it's more divergent than ever
01:11
but the LTSP bits are pretty similar.
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01:16
<JimmyNeutron>
Thanks vagrantc!
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02:29
<andygraybeal_>
i got it working
02:29
i never undertsand then boom it works.
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03:13
<andygraybeal_>
alright, well i feel better.. i got ltsp working in 12.04 ;)
03:13
unity works and gnome-failback both work for me.
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03:26
<andygraybeal_>
i like the purple ldm :)
03:26
i lik eth eorange too :)
03:28
okay sleep time for me
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05:46
<ltspuser_55>
Hi all,
05:46
can anybody tell me if LTSP can be implemented with Red Hat Enterprise Linux ?
05:48
<Takyoji[laptop]>
It certainly should, I don't see what would limit it at all.
05:48
considering that it would be a massive showstopper for an enterprise product to not be able to do such.
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06:01
<ltspuser_55>
Its LTSP that needs to certify Red Hat Enterprise Linux not the other way around. I'm sure it will work as well, the question is if it will get supported.
06:01
and Thanks!
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07:02
<work_alkisg>
ltspuser_55: I don't think anyone is maintaining LTSP on Fedora or RHEL at the moment. It was maintained some years ago, but I don't think it is now.
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09:59
<andygraybeal_>
morning
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11:06
<ltspuser_90>
Hi all I am having problem getting thin clients on ubuntu 10.04
11:06
I need help
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11:43
<jimjimovich>
anyone have a good solution for allowing remote desktop access for users from home?
11:43
tried xrdp and it doesn't work :(
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13:52
<Bootless>
hey guys i have a question. i setted up an ltsp cluster environment with 5 appserver and i want to use a ldap server for authentication. i have 2 networks (10.88.88.X -> admin network and 10.99.99.X -> client network) the ldap authentication against the admin network works but not for the client network. hope anyone can help
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14:07
<sbalneav>
Morning all
14:09
Bootless: Is there routing between the two networks? As well, I'd need to see the relevant LDAP config files.
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14:24
<ltspuser_67>
Hi! I'm using an Ubuntu 12.04 with ltsp
14:24
in a LDM session how can I eject a pen usb?
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14:31
<ltspuser_67>
it's possible?
14:34
<sbalneav>
ltspuser_67: You don't need to eject.
14:34
Just wait two seconds and pull the stick out.
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14:55
<sbalneav>
ltspuser_67: You there?
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15:03
<ltspuser_67>
so
15:03
it's not possible to have the eject option
15:03
right?
15:03
wait two seconds after what?
15:03
if I paste a file with 200MB
15:04
I wait until is finished and then wait 2 seconds and pull??
15:04
it's safe?
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15:05
<ltspuser_67>
and format? it's possible?
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15:22
<sbalneav>
ltspuser_67: yup, after it's finished writing, it automatically unmounts.
15:23
ltspuser_67: No, formatting isn't possible, at least on a regular thin client config. We just use ltspfs to mount the stick.
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15:33
<cbeserver>
hi everybody... I know you have a lot of work.. and I dont want to botter you... BUT!.. I need help... I am trying to set up an ltsp server 32 bit with 2 thin client... I use this website...http://www.thefanclub.co.za/how-to/how-create-ubuntu-1104-x64-ltsp-server-32bit-thin-clients
15:34
I know... this is for 64 bit... I though I could work
15:35
and has been working... until the point of create groups... When I tried to create a new user... say--- An unknown error accour--- and then I cant do anything else...
15:35
could you help me.. please
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15:39
<sbalneav>
cbeserver: I'd just use the command line tools to create a user.
15:39
<cbeserver>
how?
15:40
<sbalneav>
cbeserver: sudo adduser --gecos "Joe McIntosh" jmcintosh
15:40
passwd jmcintosh
15:41
sudo passwd jmcintosh, sorry
15:42
<Mip5>
Hi Folks - I posted about this the other day, but couldn't stick around. I've been getting an error when I try to update the chroot. Steps I use to update chroot: http://pastebin.com/xsm1VRSe
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15:42
<Bootless>
sbalneav: sorry, just read it. got the solution. the home directory had wrong permissions and with autologin i couldnt see it. but thansk for you help :)
15:43
<Mip5>
Here's the error I get: http://pastebin.com/uxnqifZa
15:46
I had this error once before, and wasn't able to get rid of it, so I built a new chroot (using the purge option). It worked fine, but then the error cropped up again on the next update.
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16:10
<Mip5>
ls
16:10
<elias_a>
ls -la :P
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16:12
<Mip5>
yeah - gotta pay attention to which window has the focus.... ;-)
16:12
<johnsonmlw>
Hi all... how do I get all home directories to mount on a fat client (as opposed to just that user's home directory)?
16:13
(ubuntu 12.04)
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16:15
<johnsonmlw>
I have LOCAL_APPS_EXTRAMOUNTS=/home in lts.conf but that doesn't seem to work
16:19
<cbeserver>
sorry... I got this error..... http://pastebin.com/Fu14fi9q
16:19
sbalneav....
16:19
could you check please
16:23
Ok.. let me see if I understand... with the command line.... "sudo adduser --gecos." This is the comand..... then. "Joe McIntosh"... is a name, Just a name which I can change it right?.. and jmcintosh is a password???
16:23
or isnt?
16:24
<Mip5>
So, I got the error again: http://pastebin.com/Y0tR4Crd - but I get no errors when I run: sudo ltsp-update-kernels
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16:31
<sbalneav>
cbeserver: The username is "jmcintosh"
16:31
The --gecos sets the users real name.
16:31
passwd jmcintosh changes the password for the user jmcintosh
16:33
<Mip5>
Here's the content of /var/lib/tftpboot/ltsp/i386 - it looks like the kernel is there. http://pastebin.com/Buw9rYXc
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17:11
<Mip5>
BTW - how should I setup printing for thin clients on 12.04? I added the printer to the admin account, and it shows up there and prints, but it isn't showing up for the clients
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17:22
<cbeserver>
sorry sbalneav!.. I was in a class... Thanks for the info!.. I will do it again...
17:23* vagrantc waves to sbalneav
17:25
<cbeserver>
hmmm... I used the command, and got this error ... well the same error before.... http://pastebin.com/Fu14fi9q
17:28
somebody help me please...
17:28
<vagrantc>
patience, cbeserver
17:28
<alkisg>
cbeserver: it's not an ltsp problem
17:28
Just remove /etc/group.lock or the equivalent file
17:29
It was some problem that was solved in a recent ubuntu update
17:29
ls -lha /etc/*lock should show you the lock file
17:29
And update your server... :)
17:38
!learn update-grub as One method to avoid update-grub errors in chroots is to override it with a symlink to /bin/true: ln -s /bin/true "$CHROOT/usr/local/sbin/update-grub"
17:38
<ltsp>
The operation succeeded.
17:38
<alkisg>
Mip5: ^
17:40
<sbalneav>
vagrantc: Hey ho!
17:40
<cbeserver>
thanks! alkisg
17:40
working..
17:40
<alkisg>
Cool
17:41
<cbeserver>
sorry.. I am learnin.. I put... sudo remove ls -lha /etc/*lock
17:42
and order.. not found..:(
17:48
<alkisg>
cbeserver: what's the output of this?
17:48
ls -lha /etc/*lock
17:48
Without the "sudo remove" in front of it
17:49
<cbeserver>
http://pastebin.com/85uekYYZ
17:50
<alkisg>
cbeserver: ok, now run: sudo rm /etc/*.lock
17:50
<cbeserver>
done...
17:50
deleted.
17:51
<alkisg>
ok, now try adding your users
17:51
<cbeserver>
ok..
17:52
YES! YES! YES! .. ups..sorry for scream....
17:52
works now!
17:52
I will update the server now...
17:52
<alkisg>
If you updated before, you wouldn't have the problem :)
17:53
<cbeserver>
:p heheh... sorry
17:55
hey, man your a master! cool
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17:56
<Mip5>
alkisg: I see your post about ln -s /bin/true "$CHROOT/usr/local/sbin/update-grub" - I don't understand it. Is there an error in reporting, and this fixes it?
17:57
<alkisg>
Mip5: you put an error in pastebin above, and this command solves it
17:57
What's your chroot? /opt/ltsp/i386?
17:57
<Mip5>
alkisg: yes - that's my chroot
17:58
<alkisg>
OK, then run this on your server: sudo ln -s /bin/true /opt/ltsp/i386/usr/local/sbin/update-grub
17:58
<Mip5>
okay - brb
17:58
<alkisg>
From then on, you'll no longer have update-grub problems in your chroot
17:58
<Mip5>
Sweet!
18:01
alkisg: Cool! - that did it!
18:02
<vagrantc>
why do chroots have grub in them at all?
18:02
some overly silly dependency
18:05
<alkisg>
ubuntu-desktop, yeah
18:06
<Mip5>
Not to return to the mundane, but how should I go about printing for thin clients?
18:06
<alkisg>
I think that even if you purge it, it's pulled in again on kernel updates
18:07
Printer servers should just work, no configuration needed
18:07
*Printers on the ltsp server
18:08
<Mip5>
I think I ssh'd into the server, forwarded the X session, and then launched a browser and pointed it at cups to add the printer. Is there a better way?
18:10
<alkisg>
Errr what?
18:10
You plug in a printer on the ltsp server
18:10
Then login to a thin client and print
18:10
No configuration necessary
18:10
No cups configuration necessary either, thin clients are server-side sessions so the printer is local to them
18:14
<Mip5>
It's a network printer - so I added it to the server. I don't have vnc going (not sure how to make that happen), so I ran ssh -X me@server to connect to it, then launched firefox , and it displayed on my screen. I entered 127.0.0.1:631, and added the printer. It didn't show up as an option for the thin clients.
18:15
<alkisg>
All this ssh -X stuff is because you don't have local GUI access to your server, right?
18:15
<Mip5>
yes
18:15
<alkisg>
!x2go
18:15
<ltsp>
x2go: x2go is an NX-based suite of applications that allow logging in to a remote X server from any OS. It's much more efficient than VNC over slow network. More info: http://www.x2go.org/
18:16
<alkisg>
That's for remote sessions
18:16
For local sessions, just use a thin client
18:16
(x2go works much better than VNC for LAN too)
18:16
Launch the gnome printers dialog and check that the printer is there
18:16
If not, add it.
18:17
<Mip5>
really? and add the printer using the thin client? I thought I wasn't supposed to do any admin stuff on a thin client login.
18:17
<alkisg>
A thin client session is a server session
18:17
Fat clients are another story...
18:18
<Mip5>
Aren't fat clients the default for 12.04
18:19
<alkisg>
No
18:21
<Mip5>
Well, I'm pretty sure I've set these up as fat clients. When I run ps aux and grep for instances of firefox, I don't see any, but I'm sure that the students all have firefox running
18:22
I figured that was because they were fat clients, and so the server didn't see the sessions. I can see that about 20 students are logged on, so I know the lab is in use.
18:22
<alkisg>
If you have these as fat clients, you shouldn't be mentioning them as thin clients above :)
18:22
To publish printers on the LTSP server on the local network so that fat clients see them, use the gnome printers dialog
18:23
In its settings option, it has a setting for [v] publish printers on local network
18:23
<Mip5>
okay - thanks
18:24
Will that do it, or will I need cups installed in the chroot (I recall coming across that somewhere)
18:26
<alkisg>
You already have cups in the chroots, it's installed with the ubuntu-desktop for the fat clients
18:26
<Mip5>
ah! excellent. Okay - this is great. I'll head over to the school now, and get this going. Thank you *so* much.
18:26
<alkisg>
np
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19:01
<blakes>
Having a terrible time with network printing (LTSP 5, 12.04LTS). Some jobs just disappear, some jobs print, some applications don't see network printers. CUPS was crashing on the LTSP server when users try to print to one of two HP Laserjet4050 in our lab. So I put them on a separate box, set them up together in a Class.
19:02
On some thin clients, Acrobat won't find the printer, but it shows in the system settings. On other thin clients print job appear to print but never make it to the queue. and on some thin clients, LibreOffice can't find ANY printers.
19:03
If I remove the /home/[username]/.config folder, that seems to clear up some, but not all of the printer issues. I would pull my hair out, if I had any.
19:05* vagrantc sympathizes with the apparent lack of anything more reliable than CUPS
19:07
<andygraybeal_>
blakes, that sucks man
19:07
<blakes>
Thanks! I know you feel my pain. We have tremendous loads sometimes and I know that this has something to do with the problems.
19:07
Any ideas where i could look to fix this bastard?
19:08
<andygraybeal_>
in 10.04 i have had no probs.. right now i'm still testing it out on 12.04 ... i will reember to test the printers
19:09
<blakes>
Me too about 10.04. Was thinking about discarding CUPS on my LTSP server, then putting up another machine with 10.04 and running it as an independent print server
19:09
Only my windows users would have a cow
19:10
Was also thinking about writing a script that blew away all .config folders in all user homes... but that's kind of brutal.
19:12
Do you think this problem could have something to do with the users desktop config? Students are eager to set their desktops with strange fonts, large background images and so on. Would any of this have a bearing on why printing is all foobar?
19:13
<andygraybeal_>
i'm gonna sit back and watch and maybe on of the elders will rspond.
19:14
<blakes>
Oh... I should mention that we are using the gnome-session-fallback, rather than Unity (no I didn't remove Unity, just force the session selection).
19:14
<alkisg>
Right, you should mention that :)
19:14
<blakes>
:-D
19:14
<alkisg>
First, there's a message that cups fails while cups doesn't fail, in gnome-fallback
19:15
See last 3 comments there: https://bugs.launchpad.net/ubuntu/+source/indicator-printers/+bug/842768
19:15
You disable the wrong panel applet for all users and that's solved
19:15
For acrobat + thin clients, you're not using localapps, are you?
19:15
<blakes>
No... use localapps for firefox and chrome
19:17
<alkisg>
Libreoffice only checks for printers when it's launched
19:17
<blakes>
that bug doesn't apply. In ALL cases the user does not get any indication of a printing error.
19:17
<alkisg>
So if you add some printer later on, the whole gnome sees it, but libreoffice doesn't
19:18
<blakes>
Yeah.... that sounds interesting, but not quite there. A person can print and print then all of a sudden LibreOffice will not see any networked printers... all it will see is the Generic. This can happen during a single session of LibreOffice
19:19
<andygraybeal_>
do you have thin or fat clients?
19:19* vagrantc has been using monit to auto-restart cups when cupsd dies silenty on maximal debugging mode
19:19
<blakes>
thinclients
19:20
<andygraybeal_>
vagrantc, does cups die a lot ? is this in 12.04?
19:20
i'm running 10.o4 with no issue
19:22
<vagrantc>
andygraybeal_: no, on debian squeeze
19:22
(which is similar generation to 10.04)
19:22
<andygraybeal_>
okay, forgive me.. is .... okay thank you
19:22
<blakes>
This printing does die in 12.04
19:23
Sorry for the gibberish.... helping a student with a printing problem right now.... errrh!
19:23
<andygraybeal_>
i'm sorry for you blakes... i'm getting sloshed right now :)
19:23
slowly of course :)
19:24
i've been very desperate before and this channel always comes through.
19:24
<blakes>
This student does not see the lab printer when printing from Acrobat, but sees others.
19:24
<andygraybeal_>
i've found acrobat to really suck.. and i have been using the native linux pdf viewer on linux, the name escapes me now.
19:25
evince or something
19:26
i'm curious as to what 'evince' would do in this case if you have the patience for it.
19:26
<blakes>
evince doesn't work with our student information system POS software so we HAVE to use acrobat
19:26
<andygraybeal_>
okay, i'm sorry
19:26
sis's are always a bit awkward
19:27
i think the last sis i worked with was emulated 3270 stuff
19:31
<blakes>
So this student was trying to print from GoogleDocs. When it pulled up the PDF, I told it to use evince... NO printers appeared, including the one physically attached to the ltsp server. WTF!
19:31
<andygraybeal_>
and sudo /etc/init.d/cups restart ... does?
19:32
<blakes>
I did that of course... it made no change. So I deleted the .config file in the user's home directory, still no joy.
19:32
All the while I was doing this, three other students printed successfully.
19:33
I am allowed to curse on this channel ;)
19:34
maybe I should reboot the server.... no joy can come out of that.
19:36
The only log entries look like this:
19:36
Oct 25 12:34:30 freyja kernel: [519461.313246] type=1400 audit(1351193670.339:17418): apparmor="ALLOWED" operation="unlink" parent=1 profile="/usr/sbin/cupsd" name="/run/cups/certs/0" pid=9377 comm="cupsd" requested_mask="d" denied_mask="d" fsuid=0 ouid=0
19:43
<andygraybeal_>
i hope someoene helps you man, i'm sorry i can't
19:43
<blakes>
glub....glub.... glub (that's me drowning)
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19:52
<alkisg>
stgraber, ogra_, highvoltage... any news on booting ubuntu on the zatab?
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20:10
<highvoltage>
hey alkisg
20:10
<alkisg>
Hi highvoltage :)
20:11
<highvoltage>
alkisg: ogra got it to boot and had it see all the RAM
20:11
<alkisg>
With graphics and everything?
20:11
<highvoltage>
alkisg: I don't think so
20:11
<alkisg>
Nice start though... ogra_, any small how-to's to get there?
20:12
<highvoltage>
alkisg: I doubt anyone is going to spend particular efforts on it, there are rumours on the blogosphere that ubuntu will be somewhat easy to install on the nexus 7, so maybe we'll end up just going with that as a development platform instead
20:13
<alkisg>
Ah
20:14* alkisg gets in waiting mode then, np... :)
20:17
<vagrantc>
there's always something shinier and newer
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21:05
<andygraybeal_>
wow nexus 7 highvoltage, i'm reading this: http://www.phonearena.com/news/Official-Ubuntu-demoed-on-a-Nexus-7_id35788
21:05
so in 13.04 it'll run on the nexus is the rumor?
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22:05
<highvoltage>
andygraybeal_: :)
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