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


Channel log from 18 October 2008   (all times are UTC)

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09:00
<masus>
hi all, can anybody help me please i use debian etch with ltsp server it's worked fine with my notebook but with my multi pc not and my problem is -> init: .: 152: Can't open /tmp/net-eth0.conf \ Kernel panic - not syncing: Attemted to kill init! Thanks All.
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09:19
<masus>
:(
09:20
<nubae1>
masus: the debian folks are on later on...
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09:23
<masus>
?
09:23
sorry my english is not very well
09:23
i dont understand it
09:23
on later on ?
09:24
can anybody help me please
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09:57
<masus>
thanks
09:57
by
09:57
:)
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10:14
<alkisg>
ogra, just an idea: http://img61.imageshack.us/img61/5707/greeterde6.png
10:15
<ogra>
alkisg, as i said, wont work without changing the complete backend design which is built n a step by setp way
10:15
<alkisg>
ogra, usernames could come from lts.conf, and username/password could be sent one-by-one, no?
10:16
<ogra>
it expects to recieve one, send something, recieve another, send anoter etc
10:16
<alkisg>
ok, but that can be arranged even if both of them are shown on the interface...
10:17
Even as an option, it would be very easier for kids 12-14 years old...
10:17
<ogra>
not without changing the backend atm
10:17
<alkisg>
(with no computer experience)
10:17
ogra, ok... :)
10:17
<ogra>
and i will never accept user lists until someone shows me a 100% safe way that doesnt expose them on the server
10:18
i dont say the change to the backend must be huge
10:18
<alkisg>
ogra, if they're manually put to lts.conf, where's the security break?
10:18
<ogra>
but currently its a kind of chat protocol that expects certain things to happen in the communication
10:18
erm
10:19
<alkisg>
like the "allowed users in this workstation" that are used in lts.conf now
10:19
<ogra>
your lts.conf is publically available to *all* interfaces by default
10:19
via tftp
10:19* ogra already doesnt like autologin as we have it etc
10:19* ogra has to vanish again
10:19
<highvoltage>
*poof*
10:19
<alkisg>
Ah, I see!! Ok, thanks, bye!
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10:22
<alkisg>
(E.g. I would manually put them to lts.conf and I would be 100% sure that there would be no security problems, because my server is not exposed to any PCs outside my lab... so an option would be nice... :) - ok, I'm shutting up!)
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10:27
<rjune_>
alkisg: does your server have internet access?
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10:28
<alkisg>
rjune_: yes, behind a router (NAT)
10:28
<rjune_>
alkisg: so the simple problem is one user comprimises another and does things as that user
10:28
I don't know how the muekow stuff works, so I can't be all that useful
10:29
<alkisg>
rjune_, an existing user can cat /etc/passwd and see the usernames...
10:29
<rjune_>
yes, but not passwords
10:29
<alkisg>
rjune_, on small schools we're not very worried about security, we're most concerned about usuability
10:29
<rjune_>
yeah
10:29
used to be that gdm and kdm both would do autologing
10:29
<alkisg>
rjune_, I never proposed that passwords would be passed to ldm!!!
10:29
<rjune_>
kdm was better about it then gdm
10:31
<alkisg>
anyway, it would save me 1-2 hours, the time I take to remind the kids about their usernames and so, but it's not a big problem
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12:05
<stgraber>
ogra: I'll really need to show you how our autologin works, it's actually pretty good (and perfectly secure)
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12:07
<stgraber>
oh, cool, the resara guys are coming to BTS
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<rjune_>
resara?
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12:32
<stgraber>
rjune_: a company I met this week working on a LTSP-like system, we asked them if they'd come to BTS so we can see how their work can be shared with LTSP and so that they can get a better idea of what's done in LTSP at the moment
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13:08
<indradg>
hi... i've question about LTSP 5 and HA clustering (hot failover).... I'm aware of the Mille-Xterm project and a few other references on the web, but is there any known work on putting LTSP 5 on a HA cluster?
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13:13
<johnny>
indradg, yes.. ltsp-cluster
13:14
stgraber would say more
13:15
<stgraber>
indradg: millexterm is now ltsp-cluster. I'm on the phone, we can talk about it a bit later
13:16
<indradg>
stgraber, thanks.. would appreciate
13:16
stgraber, johnny looking at https://wiki.stgraber.org/LTSP-Cluster atm
13:16
<johnny>
yeah.. exactly
13:16
<indradg>
:)
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14:16
<laprag>
anyone have any experience with the old ltsp term 150 in ltsp 5, and how to tune them for better X performance?
14:17
warren says he has tried a different xorg module (openchrome) in fedora, but that does not seem to be available with ubuntu
14:19
<nubae>
laprag: it is... nubae@homeserve:~/olpc-screens$ sudo apt-cache search openchrome
14:19
[sudo] password for nubae:
14:19
xserver-xorg-video-openchrome - X.Org X server -- VIA display driver
14:19
<laprag>
ah
14:20
let me try that then.
14:20
do you know if it improves the X performance of these clients?
14:20
<nubae>
no idea
14:20
<laprag>
:/
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14:28
<johnny>
laprag, did you set LDM_DIRECTX=Y ?
14:28
<laprag>
no
14:28
<johnny>
start with that
14:29
<jammcq>
oh, that should help alot
14:29
<laprag>
ssh is too heavy for this thing?
14:29
<johnny>
could be
14:29
<jammcq>
you'll still get ssh encrypted login
14:29
<laprag>
jammcq: hey big boss
14:29
<jammcq>
hey my friend
14:29
<laprag>
trying to get your old hardware to work
14:30
<jammcq>
cool.
14:30
<rjune_>
jammcq !
14:30
Howdy ragnar
14:30
<laprag>
hey richard
14:31
long time
14:31
<rjune_>
indeed
14:31
how's life in the frozen north? :-)
14:31
<laprag>
mostly good
14:32
and dark
14:32
:-)
14:32
red wine helps
14:32
<rjune_>
I bet
14:32
<mistik1>
hey laprag, ltns
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14:33
<mistik1>
howdy rjune_
14:33
<laprag>
hello there!
14:33
<rjune_>
I've been making mead
14:34
not quite red wine. but nice anyway
14:34
<laprag>
mistik1, rjune_: you guys making it to Maine this year?
14:34
<rjune_>
I am not
14:34
I've got a lot going on
14:34
<mistik1>
laprag: not this year
14:34
<rjune_>
mistik1: hey man, how's life been?
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14:35
<laprag>
lot going on is no excuse. few of us twiddle our thumbs
14:35
<mistik1>
rjune_: So far so good, I've turned into the mad hacker lately :)
14:36
<laprag>
mistik1: no more woodwork?
14:36
<mistik1>
I've not done any at all the last year
14:36
<rjune_>
laprag: I may be moving
14:36
mistik1: good job
14:36
<mistik1>
Just sitting on my butt coding
14:37
<laprag>
mistik1: heh, may your coding be as good as your woodwork :)
14:37
<mistik1>
hehe
14:38
<laprag>
rjune_: oh. still within the us?
14:38
<rjune_>
yeah
14:38
applied for a job in georgia, US
14:38
<laprag>
yikes. i'll try reducing the resolution on the monitor
14:38
<mistik1>
Georgia certainly seems to be the latest boom spot in the US
14:38
<laprag>
or order a new tc from jim
14:39
georgia, eh? loooong way to see the ocean from there
14:39
<rjune_>
no, Indiana is a LOOONG way from the ocean
14:39
<laprag>
hehe. even loooonger.
14:39
<rjune_>
where I would move in GA is 2 hours or so
14:40
<jammcq>
laprag: you won't be ordering a tc from me. I'm no longer involved with DisklessWorkstations.com
14:40
but i'm sure Ron and erick would be happy to take your order
14:40
<mistik1>
jammcq: what's this?
14:40
Too busy?
14:40
<jammcq>
yeah, for almost a year now
14:41
<mistik1>
wow!
14:41
I was not expecting that
14:41
<rjune_>
neither was I
14:41
<jammcq>
yeah, I wasn't devoting any time at all to DLW. I figured if DLW prospers, it won't be because of me, so I got out of the way
14:41
<laprag>
jammcq: oh. ron running the show now?
14:41
<jammcq>
yep
14:41
<laprag>
ah
14:41
<mistik1>
Noble of you my friend
14:42
<jammcq>
and from what I hear, they're putting more time and energy into it these days and things are good there
14:42
<laprag>
the business is good for him?
14:42
right
14:42
i'm happy for him
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14:42
<jammcq>
Ron's son Alex is working there too
14:42
hopefully at least a couple of those DLW guys will show up at BTS
14:42
I talked to erick thursday and he sounded like he was coming
14:43
<laprag>
right. i'll order a tc for delivery at sw harbour to make sure :)
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14:43
<laprag>
by hnad
14:43
hand
14:43
<mistik1>
heh
14:43
<jammcq>
there ya go
14:43
theyv'e got a new model that has gigabit ethernet and supports dual-head
14:44
<laprag>
dual-head? wow
14:44
<rjune_>
badass
14:44
<mistik1>
nice
14:44
I've heard dual head requested many times over the years
14:44
<jammcq>
yeah
14:45
I think they have a customer that needed it for a certain situation
14:45
so... now they have it
14:45
I think LTSP-5 made it much easier to set up
14:47
<laprag>
hmmm, X_MODE_0 = 1024x786 does not seem to have any effect. does that parameter need to go with something else?
14:47
i'm really rusty on this stuff
14:47
<jammcq>
umm, /me thinks there's an option you need to specify to tell it to not auto-detect
14:47
and i'm also REALLY rusty at this ltsp stuff
14:48
<laprag>
heh
14:48
<jammcq>
I think the only part of ltsp-5 that came from my stuff is the getltscfg program
14:49
it's kinda like when someone renovates a building, they keep the original corner stone, so they can get the tax breaks :)
14:49
<mistik1>
haha
14:50
jammcq: How do you feel about this development?
14:50
<jammcq>
really good
14:50
LTSP-4.x got about as far as I could take it
14:50
<laprag>
cannot find anything about no_auto_conf or somesuch in the docs
14:50
<mistik1>
kinda like your baby is off to college, eh?
14:50
<rjune_>
LOL
14:50
<jammcq>
yeah, zackly
14:51
<laprag>
heh
14:51
<mistik1>
:0
14:51
<laprag>
nice to see someone else building the next generation stuff
14:51
<jammcq>
I need to head out. taking one of my kids to grab some quick dinner
14:51
<laprag>
later my fried
14:52
friend
14:52
<mistik1>
take care Jim
14:52
<laprag>
enjoy dinner
14:52
<jammcq>
laprag: yeah, i don't need to lift a finger, and wonderful new releases keep coming out
14:52
<rjune_>
talk to you later jammcq
14:52
<jammcq>
yep
14:52
<laprag>
sbalneav: pinh
14:52
sbalneav: ping
14:52
damn wine
14:52
! seen sbalneav
14:52
<ltspbot>
laprag: sbalneav was last seen in #ltsp 1 day, 3 hours, 45 minutes, and 10 seconds ago: <sbalneav> !sugar
14:54
<rjune_>
laprag: you ever have honey wine?
14:56
<vagrantc>
laprag: which distro are you trying X_MODE_0 with?
14:57
i *think* it should work in Debian, but not really sure on other distros.
14:58
<laprag>
vagrantc: it's ubuntu 8.04
14:59
rjune_: no, never. sounds really sweet
14:59
<alkisg>
laprag, it worked fine in my 8.04. Did you put a [Default] header on top?
14:59
<vagrantc>
laprag: you might have to set CONFIGURE_X=True ... but i thought that stuff didn't get implemented until intrepid
14:59
<laprag>
alkisg: yup
14:59
<vagrantc>
(configure_x set to False by default, that is)
14:59
<rjune_>
laprag: you should try it sometime, also called mead.
14:59
really good. though not always sweet
15:00
<vagrantc>
the best mead isn't sweet at all
15:00
<laprag>
vagrantc: will that then require all other xorg params to be set manually?
15:00
<vagrantc>
or, more like a distant memory of sweetness
15:00
laprag: shouldn't
15:00
<laprag>
k
15:00
<alkisg>
laprag, I also have X_COLOR_DEPTH=16, maybe both are needed...
15:00
<laprag>
ah, ok
15:01
<vagrantc>
laprag: the obvious is, can the hardware support the color depth and resolution you want?
15:01
<alkisg>
e.g. sbalneav told me that both vert and horz refresh were needed to change the refresh rate, maybe both X_MODE_0 and X_COLOR_DEPTH are needed to change the resolution too.
15:01
<laprag>
vagrantc: yes, it does. actually i'm going down in resolution
15:01
<vagrantc>
alkisg: i don't think so ...
15:02
laprag: look at /opt/ltsp/i386/usr/share/ltsp/configure_x.sh ... that's the script that handles it
15:03
<laprag>
right
15:07
i think the lack of responsiveness is the hardware being too old. in 800x600 and 16 bits the response is fine
15:08
even shows a movie
15:09
<jhutchins_lt>
To install X/KDE on ltsp, do I install it on the server, install it in the chroot, or install it from the client?
15:10
<laprag>
jhutchins_lt: on the server, in the chroot
15:11
<vagrantc>
well...
15:11
<laprag>
but X should be there by default?
15:11
<vagrantc>
jhutchins_lt: usually, you just install it on the server, unless you have an unusual setup.
15:11
<jhutchins_lt>
do you have to do a client-build to use it though?
15:11
<vagrantc>
jhutchins_lt: no need to install X itself, though.
15:11
<jhutchins_lt>
The server didn't have it because it was headless.
15:12
so chroot /opt/ltsp/i386; aptitude install kde should do it?
15:12
<vagrantc>
jhutchins_lt: just install the applications (such as KDE) that you want to run, and your distro should install whatever you need to run.
15:12
<laprag>
it might have changed in LTSP5, but earlier you never needed X on the server as such
15:12
<vagrantc>
jhutchins_lt: no.
15:12
<jhutchins_lt>
vagrantc: Log in as root on the client and install?
15:12
<vagrantc>
jhutchins_lt: no need to chroot.
15:12
jhutchins_lt: install it on the server.
15:13
<jhutchins_lt>
Ok, here goes.
15:13
<vagrantc>
jhutchins_lt: unless you're doing diskless workstations.
15:13
jhutchins_lt: but that's not the default.
15:13
<jhutchins_lt>
Oops! Yes!
15:13
Diskless.
15:13
<vagrantc>
and then you should know what you're doing :)
15:13
<jhutchins_lt>
Heh.
15:13
<vagrantc>
jhutchins_lt: thin client, or diskless workstation?
15:13
<jhutchins_lt>
Diskless PXE.
15:13
It's booted, I have console and DM, but no Desktop Environment to log in to.
15:14
<vagrantc>
then you would install it in the chroot ... X should already be installed in most LTSP environments
15:14
jhutchins_lt: how did you build the LTSP environment?
15:14
<jhutchins_lt>
Ah ha! X is installed.
15:14* vagrantc is worried that there is infinite confusion going on at the moment.
15:14
<jhutchins_lt>
Followed the debian wiki article: http://wiki.debian.org/LTSP/Howto
15:15
<vagrantc>
ok, then you should just install KDE on the server.
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15:15
<jhutchins_lt>
vagrantc: Oh, there's confusion, but it's pretty finite.
15:15
vagrantc: chroot or not?
15:15* vagrantc asserts infinite.
15:15
<vagrantc>
jhutchins_lt: do you want a typical LTSP environment, or something else?
15:16
<jhutchins_lt>
Would like to be fairly standard so that it matches up to howto's and such.
15:16
<laprag>
with infinite confusion, what is typical?
15:16
<vagrantc>
jhutchins_lt: ok, so install it on the server itself. don't mess with the chroot.
15:16
<jhutchins_lt>
ok.
15:16
installing now.
15:16
Then will need to build/rebuild the client?
15:16
<vagrantc>
no
15:16
<jhutchins_lt>
Just, what, reboot?
15:16
the client?
15:17
Man, I was just tickled to death when the client actually took of and booted.
15:17
This is gonna be great!
15:17
<vagrantc>
jhutchins_lt: install KDE (and other applications) on the server and then log in.
15:18
jhutchins_lt: glad to see your excitement :)
15:18
jhutchins_lt: then when you log out, i think it will re-connect to the server to get a list of available sessions
15:18
jhutchins_lt: if not, just go ahead and reboot the thin client.
15:22
<laprag>
alkisg: it seems X_MODE_0 and COLOR_DEPTH are unrelated
15:22
<alkisg>
laprag, also check if your lts.conf gets transferred to the clients, e.g. with dnsmasq < 2.42 as a tftp server it didn't... oh, and it's on /var/lib/tftpboot/ltsp/i386/lts.conf in ltsp 5.
15:24
<laprag>
alkisg: thanks. i've confirmed lts.conf is read
15:25
actually, getting ltsp 5 installed is incredibly easy
15:29
vagrantc: hmmm, I think it must be /opt/ltsp/i386/usr/lib/ltsp/configure-x.sh
15:30
<vagrantc>
ah, maybe.
15:30
we did a switch from lib -> share
15:30
guess that was after ubuntu froze hardy
15:31
<laprag>
but you're right, it only honours the parameters you change in lts.conf
15:37
enough hacking tonight. good night all.
15:38
<alkisg>
goodnight
15:38
<sutula>
What is the setting that selects which machine is the ltsp server? I'm thinking something in dhcpd.conf must decide that somehow.
15:38* sutula sees filenames in the example, but not hostnames
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15:42
<alkisg>
sutula, I *think* next-server (=tftp server) in dhcpd.conf, SERVER (=nbd server) in lts.conf, LDM_SERVER = login server in lts.conf. All default to next-server if not defined otherwise.
15:43
<sutula>
alkisg: Thanks much...I'll try that
15:44* sutula has a working system but is trying to separate the dhcp server from the ltsp server into different machines
15:45
<alkisg>
I got a router for dhcp server, the only things needed where option root-path, next-server and filename
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16:28
<sutula>
alkisg: Thanks again...that was the only thing that needed to change
16:28
<alkisg>
sutula, no problem. :)
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19:20
<petre>
evening all
19:21
when I run ltsp-vmclient, I get an error:
19:22
"could not configure /dev/net/tun: no virtual network emulation"
19:22
followed by
19:22
"Could not initialize device 'tap'"
19:23
device /dev/net/tun is present
19:23
any idea what would cause this error?
19:23
<vagrantc>
permissions on /dev/net/tun ?
19:23
<petre>
they're 666
19:24
mark of the devil, maybe that's the trouble ;-)
19:24
<vagrantc>
well, the beast anyway, but who's counting the hairs of a dead horse?
19:25
<petre>
doh! I wasn't root
19:25
works fine when root calls it
19:26
or more precisely, I tried to call it on the console as root and it restarted gdm
19:26
<vagrantc>
heh
19:26
<petre>
ssh'ing into the server from my laptop, su'ing to root and then calling it seems to be working
19:27
kinda pokey, but that's ok
19:27
with k12ltsp we used to setup xvnc to launch via xinetd
19:28
but that depends on gdm; since ltsp 5 uses ldm, is it at least conceptually possible to do the same?
19:28
so a user could point vncviewer at the server and get the same screen as clients?
19:28
user= on a fat workstation
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