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


Channel log from 16 March 2009   (all times are UTC)

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01:56
<daduke>
jammcq: howdy. got a minute?
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09:13
<Appiah>
Hello , anyone in here managed to cluster LTSP in a easy way?
09:16
<sep>
i belive you can use a list of servers on LDM_SERVER or a script that checks "load/usage/whatever" and returns a server and the client with use that server.
09:16
<stgraber>
Appiah: We develop ltsp-cluster at Revolution Linux
09:16
<sep>
no hot failover tho
09:16
<stgraber>
Appiah: https://wiki.stgraber.org/LTSP-Cluster
09:16
<sep>
i have not used it in production. but i have tested it and it works
09:18
<Appiah>
stgraber oh , is that package done in ubuntu now?
09:18* Appiah fires up the ltsp labb
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09:59
<stgraber>
Appiah: the integration is done in LTSP for the thin client side, the server side is in a PPA
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10:15
<Appiah>
stgraber: what do you mean? is not all clustering server-side?
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10:25
<ogra>
Appiah, the ltsp-cluster stuff does load balancing and decides to which server your client logs in based on the load a server has ... so indeed its a matter of client *and* server
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10:29
<Appiah>
but I mean ,
10:29
after the client is logged in
10:30
is there anything running on the client?
10:30
like a cluster-thinclient app?
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10:39
<stgraber>
Appiah: no
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10:42
<Appiah>
stgraber is it possible for a non-dev to setup the ltsp-cluster PPA ?
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10:58
<_UsUrPeR_>
How do I assign special drivers based on PCI ID? I have found what appears to be assignment here: /opt/ltsp/i386/usr/share/xserver-xorg/pci, but making changes doesn't seem to work.
10:59
<stgraber>
Appiah: there are some docs available on the wiki (https://wiki.stgraber.org/LTSP-Cluster), it's basically installing the packages and changing a few variables
10:59
<_UsUrPeR_>
I am trying to get the via drivers to be loaded automatically instead of the openchrome drivers for the PCI ID 11063122
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11:02
<stgraber>
hey CAN-o-SPAM
11:02
<CAN-o-SPAM>
hi stgraber, how are you
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11:02
<stgraber>
CAN-o-SPAM: fine and you ? had a good time in Texas ?
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11:04
<cyberorg>
stgraber, hi, can you have a look at http://prime.cyberorg.co.in/ltsp-cluster-control/Admin/admin.php and see what am i missing? i cant find where to add clients from
11:04
<CAN-o-SPAM>
yes it was a good time, trying to get everything setup for all of you in up there
11:05
<vagrantc>
CAN-o-SPAM: hey, so how did the logo contest go?
11:06
<CAN-o-SPAM>
vagrantc: i've been out of town for 3 weeks, so later today i plan on "cleaning that up" i think we're missing some votes though
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11:11
<stgraber>
cyberorg: seems to work
11:11
CAN-o-SPAM: Am I not supposed to vote ? :)
11:11
cyberorg: out for some food now, will check again after
11:12
<cyberorg>
stgraber, ok
11:14
<Keaton>
Hey, #ltsp. I've just put together my first Ubuntu-based terminal server, and I've noticed a bit of a hitch involving local usb devices, like thumb drives: when you pop one in a thin client, it shows up on everyone's desktop. Has anyone else bumped into this?
11:15
<vagrantc>
Keaton: probably your users need to be in their own primary group
11:15
Keaton: using ldap or some other remote authentication?
11:16
<Keaton>
Yup, LDAP.
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11:22
<Keaton>
Is there some way to change the PnP mount script to make it accessible to the user that initiates it, rather than the group, that you know of?
11:23
<vagrantc>
you'd have to patch the C code and recompile the ltspfs package
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11:23
<cyberorg>
vagrantc, you experimented a bit with nbd cow, how did it go?
11:23
<Keaton>
Urck. That's a bit over my head. Thanks anyway, though.
11:23
<vagrantc>
Keaton: just figure out how to add each user to their own primary group (the first group)
11:24
<Keaton>
vagrantc: That is my plan B, but it's a bit messy on the server end, so I was hoping for a way around it.
11:24
<vagrantc>
cyberorg: long time ago ... don't really remember. filed a few bugs as a result...
11:24
cyberorg: bugs on NBD
11:24
Keaton: less messy than your other options :)
11:25
<cyberorg>
vagrantc, ah, this is in continuation of our pursuit of finding aufs alternative :)
11:27
<vagrantc>
cyberorg: NBD cow should work great, but there were a few limitations ... like it only allowed you to write to the cow file if the source file was writeable, it had to sit right next to the source file, that sort of thing...
11:29
cyberorg: http://bugs.debian.org/470963
11:30
<cyberorg>
vagrantc, discussion there seem to have died on that bug
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11:31
<vagrantc>
yeah, i filed it a year ago
11:32
i'm sure a patch would likely spurn some interest :)
11:32
<ogra>
whats wrong with aufs ?
11:33
<vagrantc>
cyberorg: looks like at least one of the bugs was fixed: http://bugs.debian.org/470851
11:34
<cyberorg>
ogra, https://bugzilla.novell.com/show_bug.cgi?id=483444 "Drop aufs"
11:34
<ogra>
use unionfs :P
11:36
<vagrantc>
heh
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11:37
<cyberorg>
ogra, dm-snapshot is what is planned, nbd cow just came up
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13:06
<_UsUrPeR_>
ogra: ping
13:07
<ogra>
_UsUrPeR_, on my way out, whats up ?
13:08
<_UsUrPeR_>
wondering how a server selects which driver to use for a client's video card
13:08
I'm looking in here: /opt/ltsp/i386/usr/share/xserver-xorg/pci
13:08
Where I see the PCI addresses
13:08
<ogra>
right
13:08
thats how it works nowadays
13:08
<_UsUrPeR_>
ok, so I have reassigned a PCI device to use the via drivers instead of openchrome
13:08
<ogra>
if there is no xorg.conf it will look at the PCI ID and assign the right driver to it
13:09
<_UsUrPeR_>
yet it still boots w/openchrome. is there someplace else I need to check?
13:09
ogra: yeah, no xorg.conf here. I need this automated in case our customer is using a combo of via and intel-based thinclients
13:09
<ogra>
there are several layers of mechanisms though for backwards compatibility, i'd suggest talking to tjaalton or bryce or someone else in #ubuntu-x
13:10
<_UsUrPeR_>
ogra: rgr. what is their capacity?
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13:10
<ogra>
they know more about it than me
13:10
<_UsUrPeR_>
ok, cool. thanks a lot
13:10
<warren>
_UsUrPeR_: it is harad coded in a C source file
13:10
_UsUrPeR_: it doesn't use the text tables during runtime
13:11
_UsUrPeR_: some distros add their own non-standard detection before xorg.conf
13:11
<_UsUrPeR_>
warren: oh. is that for both ubuntu and fedora? I'm using ubuntu right now
13:11
<warren>
_UsUrPeR_: Ubuntu I think uses a non-standard detection thing before xorg.conf, but that isn't used with LTSP I think.
13:11
<ogra>
afaik there are three layered detection mechanisms
13:11
<warren>
_UsUrPeR_: Fedora has a blank xorg.conf and relies on X autodetection
13:11
<ogra>
the upstream one is first in ubuntu
13:11
if that fails it falls back to /usr/share/xserver-xorg/pci/<card>.ids
13:12
and if that doesnt work there is another one i dont remember we inherit from debian
13:12
xorg.conf overrides them all
13:12
<warren>
how do you detect if it fails?
13:12
X itself would fail to start if that fails.
13:13
<ogra>
right
13:13
<warren>
sometimes fail means "get stuck and don't exit"
13:13
<ogra>
instead of failing it parses the ids
13:13
as you said, if it doesnt find a matching hardcoded id it moves on to the .ids files
13:14
<warren>
oh, that kind of fail
13:14
<ogra>
right
13:14
and if that fails there is a debconf based mechanism iirc
13:14
and if that fails too there is vesa
13:15
and the ubuntu config tool
13:15
which automatically tarts up on non thin clients to help you configure an xorg.conf
13:15
*starts
13:16
https://blueprints.launchpad.net/ubuntu/+spec/bullet-proof-x
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14:11
<_UsUrPeR_>
just did a new install of ubuntu 8.10 x64 alternative to test out an install process I am writing up for a client, and it's failing to boot. It is instead going to an initramfs prompt
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14:11
<_UsUrPeR_>
anyone know why? I have never seen this problem before
14:15
It's giving me a negotiation error: "Server closed connection"
14:18
<alkisg>
_UsUrPeR_: daily build or alpha 6? I think I also saw this, but an update solved it...
14:18
<_UsUrPeR_>
I just built this, like, 30 minutes ago
14:18
<alkisg>
Ah, 8.10 - sorry, I thought 9.04
14:19
<_UsUrPeR_>
the actual error it's giving is "Target filesystem doesn't have /sbin/init"
14:19
"no init found/ try passing init= bootarg
14:19
<alkisg>
Maybe ipconfig doesn't get the "next-server" from dhcp?
14:20
<_UsUrPeR_>
rebuilding image. I'll check that next
14:20
strange though. the alternate CD (which i just installed) seemed to set everything up fine previously
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14:24
<_UsUrPeR_>
alkisg: no dice there. next-server is commented out by default
14:28
I did an aptitude full-upgrade.
14:28
maybe something's broke
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14:37
<dhcrawford>
afternoon, has anyone attempted to use OS X Leopard as the DHCP server that points to the LTSP server?
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20:01
<jammcq>
hey laprag
20:01
<laprag>
hey Jim
20:02
How are you?
20:02
<jammcq>
doing well
20:02
finally getting some relatively nice weather here
20:02
you in .no ?
20:03
<laprag>
Glad to hear it. Hey, the weather was nice a few weeks back too, just a little on the cold side
20:03
No, just got to FL
20:03
An hour ago
20:03
Already in bed :-)
20:03
<jammcq>
wow, back in the US again
20:04
<laprag>
Yeah for three weeks this time
20:04
Critical time for the project
20:04
<jammcq>
holy moly
20:04
<laprag>
Did you look at the Squeezbox thingy?
20:04
<jammcq>
no, haven't had a chance
20:05
<laprag>
heh
20:06
Heh, I was watching James Bond on the flight. Thought of you and that huge TV, woulda looked better there :-)
20:06
<jammcq>
ah, once in a while, I walk out into the living room and see it
20:06
mostly, I'm living in my den
20:06
but with the surround sound, I can feel it
20:06
<laprag>
I bet
20:07
Getting more customers at McQ?
20:08
<jammcq>
yeah, it's picking up
20:08
had a good weekend out there
20:08
<laprag>
Great
20:09
Quiet here. Does Scotty drop in now and then?
20:10
<jammcq>
yeah, but he's been mostly not here lately
20:10
something going on at work I think
20:10
<laprag>
Even at night?
20:11
<jammcq>
sometimes yeah
20:11
<laprag>
Dedicated employee
20:11
<jammcq>
I just texted him
20:11
we'll see if he shows up
20:11
<laprag>
ltspbot: seen scotty
20:11
<ltspbot>
laprag: I have not seen scotty.
20:12
<jammcq>
ltspbot: seen sbalneav
20:12
<ltspbot>
jammcq: sbalneav was last seen in #ltsp 1 week, 4 days, 9 hours, 18 minutes, and 54 seconds ago: <sbalneav> At some point it's a case of diminishing returns. I don't know wether you're a consultant or an employee, but hardware's cheap, and the amount of time you're going to spend: devising a patch, testing the patch, rolling a new kernel, then MAINTAINING that patch through every kernel upgrade (1 more message)
20:12
<laprag>
ah
20:13
<jammcq>
he just replied. he's at the office still. he said he'd pop in when he gets home
20:13
<laprag>
I'll be asleep I think. Hard to keep my eyes open
20:14
<jammcq>
well, flying all day?
20:14
<laprag>
Yes, and working all the way. 9 1/2 hours
20:15
<jammcq>
wow, dedicated
20:15
<laprag>
Throw in five hours time difference
20:15
Result is fatigue
20:15
<jammcq>
yeah, not to mention the metric conversion
20:15
<laprag>
Well, installing power outlets in the seats was not a step forward ;-)
20:16
<jammcq>
plane fully loaded today?
20:16
<laprag>
No excuse for not having the laptop out anymore
20:17
Not too bad. I think the Tampa run is a special case. About ten wheelchairs, lots of grey hair
20:17
That London flight is *the* reason it's Tampa *International*
20:18
Coming back from DC ten days ago, it was very quiet
20:19
Heh, I've been "working the Hill" :-)
20:20
Interesting experience to see the inner cricles of power in this country
20:20
<jammcq>
oh cool
20:40* Lumiere hops in...
20:40
<Lumiere>
the Hill is hell on earth
20:41
<stgraber>
hey laprag
20:41
<laprag>
Hi there
20:42
<Lumiere>
jammcq: looks like I am about to be maintaining LTSP again :)
20:42
<jammcq>
oh wow
20:42
how'd that happen?
20:43
<Lumiere>
remember jelkner?
20:43
<jammcq>
yeah
20:43
teacher at yorktown
20:43* laprag closes the lid
20:43
<laprag>
see ya
20:43
<jammcq>
ciao
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20:43
<Lumiere>
he's moved down to another building
20:44
that I am network administrator
20:45
and working on CanDo
20:45
(at some point I'll get a real site for it... but for now) www.careercenter.arlington.k12.va.us/cando/
20:46
<jammcq>
wow, looks cool
20:47
<Lumiere>
yea, it is enjoyable
20:48
the development team... Lithuania, El Salvador, Philly
20:48
and Students from local schools
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