IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 12 July 2011 (all times are UTC)
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| 06:44 | <kim_> tell me how to start test ltsp on 11.04 as there is not server /etc/init.d/dhcpd-serve and isc-dhcp-server is not getting starting
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| 06:51 | <muppis> Install dhcp3-server package
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| 06:53 | <kim_> it is already installed
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| 06:54 | any body can solve this problem from last two days i have this problem....i have checked everything
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| 06:57 | <muppis> What dpkg -L dhcp3-server says?
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| 06:59 | <kim_> showing the location of dhcp like /usr/share/doc/dhcp3-server
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| 06:59 | noting else
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| 06:59 | i have installed fresh 11.04 and the ltsp
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| 06:59 | what is that problem
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| 07:00 | <muppis> Yes, that's correct. Have you edited /etc/default/dhcp-server ?
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| 07:02 | Sorry, /etc/default/dhcp3-server
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| 07:03 | <kim_> after /etc/default/ "dhcp3-server" is not coming
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| 07:03 | how will i configure it
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| 07:04 | <muppis> Hold on.
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| 07:06 | <kim_> k
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| 07:06 | <muppis> By default it contains this http://pastebin.com/w6Ma3KVM but now I can't find it is created during installation or does it comes with some package.
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| 07:07 | dhcp3-server's init looks that file and doesn't start if it is missing or misconfigured.
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| 07:08 | <kim_> so what i do now ....please let me know
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| 07:08 | i am stuck with it
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| 07:08 | even can;t test it
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| 07:08 | <muppis> Just create that file with content in url and try to start dhcpd.
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| 07:09 | <kim_> where i need to create this file u mean in init.d .....
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| 07:09 | <muppis> Btw, what was whole output of dpkg -L dhcp3-server ? Does it contain /etc/init.d/dhcp3-server ?
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| 07:09 | <kim_> no
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| 07:10 | <Hyperbyte> muppis, 11.04 uses isc-dhcp-server by default
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| 07:10 | And /etc/ltsp/dhcpd.conf
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| 07:10 | <muppis> Hyperbyte, ah. Didn't know that-
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| 07:10 | <Hyperbyte> kim_, you should '/etc/init.d/isc-dhcp-server start'
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| 07:10 | <kim_> k
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| 07:11 | <Hyperbyte> And then put everything from /var/log/syslog starting with 'dhcpd' on pastebin
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| 07:11 | <muppis> Hyperbyte, so dhcp3-server is dropped or jsut renamed?
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| 07:11 | <kim_> showing * check syslog for diagnostics. and fails
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| 07:12 | <Hyperbyte> kim_, what do you mean with 'fails'? Can you post the lines with 'dhcpd' from syslog on pastebin?
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| 07:12 | <kim_> yes
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| 07:12 | <Hyperbyte> muppis, not a clue actually. :) Yesterday was the first day I heard about dhcp3-server
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| 07:13 | Fedora has always included the isc dhcp server, 11.04 is the first Ubuntu I used
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| 07:13 | <kim_> http://pastebin.com/VxinbfDE
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| 07:14 | this is the link where i pasted the output ...please check and let me know the problem
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| 07:16 | <Hyperbyte> Post the output of the file '/etc/ltsp/default.conf' and command 'ifconfig'
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| 07:17 | Also - I'm going to work now. I'll get to you within an hour if someone else isn't first. Talk to you in a little while. :)
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| 07:18 | <kim_> there is no default.conf file in /etc/ltsp
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| 07:25 | <muppis> Hyperbyte, by quick search, it is just renamed.
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| 07:25 | As from Maverick: dhcpd3 --help
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| 07:25 | Internet Systems Consortium DHCP Server V3.1.3
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| 07:25 | <Hyperbyte> kim_: please read what I said
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| 07:25 | Wait
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| 07:26 | I said wrong
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| 07:26 | My apologies
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| 07:26 | Ammended statement:
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| 07:26 | Post the output of the file '/etc/ltsp/dhcpd.conf' and command 'ifconfig'
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| 07:26 | Now I'm off to work really though... :)
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| 07:34 | <Appiah> ...
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| 07:55 | <kim_> please see the output of /etc/ltsp/dhcp.conf and ifocnfig on http://pastebin.com/sdc1MHh4
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| 07:55 | and let me know if u can do anything
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| 08:15 | <Appiah> kim_: what's the current issue?
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| 08:15 | next-server 192.168.0.1; your TFTP is located somewhere else then the ltsp server?
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| 08:39 | <Hyperbyte> kim_: hi, I'm back. :)
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| 08:39 | And good morning Alkis :)
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| 08:40 | kim_, yesterday you told me your LTSP server and LTSP client are on a switch, seperate from the rest of your network. Is still still the case?
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| 08:40 | <alkisg> Good morning Hyperbyte. /me wishes good ...patience :)
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| 08:40 | <Hyperbyte> Heheh. :)
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| 08:47 | <kim_> yes
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| 08:48 | <Hyperbyte> kim_, so how did the server get the IP 172.16.0.251? Did you configure that?
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| 08:48 | Or did it get that automatically?
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| 09:05 | <Appiah> the dhcp points to a tftpt server that seams seperated from the ltsp server
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| 09:05 | is that the case kim_ ?
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| 09:07 | <kim_> k u mean to say i need to set 192.168.0.X ip for the server ....then only service will get start
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| 09:10 | <Appiah> did you set the IP for the server manually? Yes or no kim_
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| 09:11 | <kim_> no
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| 09:16 | <Hyperbyte> kim_, then how does the IP get set?
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| 09:17 | If your LTSP server is seperate from the rest of your network, it should get no IP at all and you will -have- to manually configure one.
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| 09:18 | You have a DHCP server in your network that is handing out IP addresses. If you want to make your LTSP server a DHCP server, you will *have* to seperate it from the other network with the other DHCP server
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| 09:18 | Two DHCP servers in one network is going to confuse clients.
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| 09:19 | So yes, you need to set the IP manually to 192.168.0.1, but on top of that, you need to make 100% sure it is seperated from the rest of the network. So you need to make sure that your clients are not going to get an IP address from the other DHCP server in your network.
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| 09:22 | <kim_> k
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| 09:22 | then i can start isc-dhc* serverice start
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| 09:22 | right
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| 09:31 | <Hyperbyte> kim_, most likely, yes.
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| 09:31 | But it'll only work if it's all seperate from your other DHCP server.
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| 09:37 | <kim_> k
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| 09:38 | but then again i need restar that isc-dhcp not dhcp becaus e 11.04 it is not there
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| 09:38 | right
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| 09:38 | tell me one more thing ....when i installed ltsp in 9.04 ....after getting building-image ...there are three folder in /opt
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| 09:39 | ltsp ... ..image.......and kiosk
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| 09:39 | but on othere version it was not there
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| 09:39 | only two is there except kiosk
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| 09:40 | <Hyperbyte> 11:38 <kim_> but then again i need restar that isc-dhcp not dhcp becaus e 11.04 it is not there
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| 09:40 | What do you mean with that?
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| 09:40 | <kim_> m just asking ...because kiosk is not working ...may be that kiosk folder shud be there ...i don't know ...m asking u guys
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| 09:41 | <Hyperbyte> Did you get DHCP working?
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| 09:41 | <kim_> m trying ...let u know
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| 09:42 | <Hyperbyte> Fix one problem at a time. :)
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| 09:42 | First get thin client to log in properly, then get kiosk working.
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| 09:42 | :)
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| 09:46 | Where are you from, Kim?
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| 09:47 | <kim_> india
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| 09:47 | n u
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| 09:47 | service got stared
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| 09:47 | <Hyperbyte> :)
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| 09:47 | <kim_> can i boot my client and check
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| 09:47 | <Hyperbyte> Yeah. :)
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| 09:47 | I'm from the Netherlands, by the way.
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| 09:48 | <kim_> k
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| 09:48 | <Hyperbyte> Kim is a boy's name in India I guess?
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| 09:49 | <kim_> yes
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| 09:49 | now can u tell me any other setting do i need to check before booting the client
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| 09:50 | <Hyperbyte> No, just try to boot the client. See if it works.
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| 09:50 | <kim_> no its not working that sy m saying
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| 09:50 | not getting ip at all
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| 09:52 | <Hyperbyte> Just out of curiousity... how are you involved in LTSP? Is this a work project, or are you studying it, or?
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| 09:52 | <kim_> no this is the project ...we are using it on production
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| 09:53 | <Hyperbyte> How old are you? :)
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| 09:53 | <kim_> 25
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| 09:53 | n u
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| 09:53 | <Hyperbyte> Ha! Me too. :)
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| 09:53 | <kim_> gr8
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| 09:53 | <joakim1> is there anyone in here who has experinece with ltsp on debian Squeeze
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| 09:54 | <Hyperbyte> kim_, could you stop writing shortform though? Things like 'gr8' instead of 'great' and 'n u' instead of 'and you?' is really annoying. :)
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| 09:54 | <kim_> ok
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| 09:54 | <Hyperbyte> kim_, are you sure the client has a network connection to the server?
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| 09:54 | What happens if you eliminate the switch, remove all network equipment, and just connect the client directly into the network card of the server?
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| 09:55 | So without switches or hubs, one LAN cable running from the client to the server.
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| 09:57 | <kim_> it got booted
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| 09:57 | <Hyperbyte> And it worked? :)
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| 09:57 | <kim_> but not getting firefox instead getting desktop
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| 09:57 | <Hyperbyte> Yes, but you haven't configured the Kiosk mode yet.
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| 09:57 | As I said, one problem at a time. :)
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| 09:57 | <kim_> k
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| 09:57 | thanks
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| 09:57 | tell me what i shud do now
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| 09:57 | <Hyperbyte> So you have now concluded that LTSP works... the client works...
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| 09:57 | The switch is the problem.
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| 09:58 | So you need to fix the switch to allow DHCP and TFTP, UDP ports 53 and 69
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| 09:58 | <kim_> k
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| 09:58 | <Hyperbyte> Sorry, UDP ports 67 and 69
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| 09:58 | <kim_> now tell me how to work kiosk mode
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| 09:59 | thats important for us
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| 09:59 | <Hyperbyte> ltsp-build-client --kiosk
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| 09:59 | <kim_> ]that i have done already
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| 09:59 | <Hyperbyte> And SCREEN_07=kiosk in /var/lib/tftpboot/ltsp/i386/lts.conf
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| 10:00 | So in /opt/ltsp/ there are 3 dirs then, right? i386, kiosk, image
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| 10:00 | <alkisg> !ask | echo joakim1
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| 10:00 | <ltsp> joakim1 ask: Don't ask to ask a question, simply ask it, and if someone knows the answer, they'll respond. Please hang around for at least 15 minutes after asking a question, as not everybody constantly monitors the channel..
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| 10:00 | <Hyperbyte> kim_, you also need to do ltsp-update-image --kiosk
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| 10:00 | <kim_> k
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| 10:01 | i will do that right now...wait
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| 10:01 | <Hyperbyte> Verify that there's 3 folders afterwards in /opt/ltsp/. i386, kiosk, and images
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| 10:03 | Hm, could be that there's only 2 folders. Not sure. Let me know.
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| 10:04 | <kim_> Hyperbyte : --kiosk unrecognized option in ltsp-update-image.....shud i do ltsp-update-image
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| 10:04 | <alkisg> joakim1: don't use gdm for fat clients. Use the normal ldm ltsp display manager
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| 10:04 | <Hyperbyte> kim_, yes, I've misinformed you a little. ltsp-build-client --kiosk, ltsp-update-image, and then there should be 2 folders in /opt/ltsp/. i386 and images.
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| 10:08 | <kim_> hyperbyte : tell me if i have already done ltsp-build-client --kiosk
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| 10:08 | do i need to do it again
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| 10:08 | <Hyperbyte> kim_, no
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| 10:08 | <kim_> or i can do ltsp-update-image
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| 10:08 | <Hyperbyte> kim_, yes.
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| 10:08 | <kim_> k
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| 10:09 | <joakim1> I have fat clients working with xdm on Debian Squeeze but when switching to gdm I get an update-gconf-default error : Destination directory not writable. So I chmod 777 to the dir /var/lib/gconf/debian.mandatory but nothing has changed
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| 10:11 | <Hyperbyte> joakim1, did you see what alkisg just wrote to you?
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| 10:12 | <joakim1> what should I do to enable gdm on fat clients using Debian Swueeze
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| 10:12 | <alkisg> joakim1: you should delete gdm and use ldm instead
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| 10:21 | <Hyperbyte> Yeah, that was strange wasn't it?
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| 10:22 | <kim__> Hyperbyte: i updated the image
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| 10:22 | tell me what i do now...
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| 10:22 | again only desktop screen is coming
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| 10:23 | <Hyperbyte> Pastebin your /var/lib/tftpboot/ltsp/i386/lts.conf file
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| 10:23 | <kim__> k
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| 10:27 | http://pastebin.com/qGz9sz8m
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| 10:27 | check this
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| 10:28 | is this correct ?
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| 10:31 | <Hyperbyte> Should be. I don't understand why you would get a normal desktop rather than kiosk.
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| 10:32 | <kim__> tell me if any other things i can verify.....
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| 10:34 | what is happening now...client is getting bootign but it stuck with login ubuntu screen ....i remains there
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| 10:34 | noting hapening after that
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| 10:35 | <Hyperbyte> What dirs are there in /opt/ltsp/?
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| 10:36 | <kim__> i386 and images
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| 10:36 | two dirs
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| 10:36 | <Hyperbyte> Okay... what happens if you put SCREEN_07=shell in lts.conf?
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| 10:36 | Do you get a local root shell when the client boots, or still an Ubuntu login screen?
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| 10:37 | <kim__> k
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| 10:37 | let me check
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| 10:40 | i have checked this alao
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| 10:41 | also it stuck with loading page,....nothing hapen after that i remains there only
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| 10:41 | <Hyperbyte> Press ESC, see any errors
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| 10:41 | ?
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| 10:43 | <kim__> nothing is hapening on client side after presing esc also
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| 10:45 | <Hyperbyte> What do you see, screen where you can login, or screen with only Ubuntu logo?
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| 10:45 | <kim__> ya only ubuntu loading logo
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| 10:45 | nothing else
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| 10:45 | <Hyperbyte> Press CTRL+ALT+F1... anything there?
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| 10:46 | <kim__> nothing is working
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| 10:46 | three time i booted n checked everthing
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| 10:47 | it stuck with loading logo
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| 10:47 | <andygraybeal> morning Hyperbyte
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| 10:47 | <Hyperbyte> Hey Andy. :)
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| 10:47 | kim__, not a clue then. Maybe someone else can help you further. I've been at this for two hours now today, need to get some work done.
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| 10:48 | <kim__> k but thanks for your support
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| 10:48 | really today only i have done too much on 11.04
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| 10:48 | thanks but if anything let me know for further
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| 10:49 | i want to solve this problem
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| 12:04 | <vmassuchetto> while starting up, on pxe boot, i see the client getting the ip range i'm specifying in dhcpd.conf, but after it boots up, in a shell, i can see it gets a common ip like any other dhcp client
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| 12:04 | how does it work? i would like the ip to be in the PXE class range i've set in dhcpd.conf
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| 12:12 | <tl1000s77> vmassuchetto: You can assign an ip address to the thin client via DHCP and the MAC address of the thin client
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| 12:13 | vmassuchetto: host client002 {
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| 12:13 | next-server 10.0.0.1
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| 12:13 | hardware ethernet 00:11:22:33:44:55;
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| 12:13 | fixed-address 10.0.0.101;
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| 12:13 | filename "ltsp/i386/pxelinux.0";
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| 12:13 | option root-path "10.0.0.1:/opt/ltsp/i386";
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| 12:13 | }
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| 12:13 | <vmassuchetto> tl1000s77, im using dynamic-bootp within a specific range
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| 12:13 | tl1000s77, the mac address is quite random for these clients
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| 12:14 | <tl1000s77> vmassuchetto: does the MAC address change on the thin clients?
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| 12:14 | <vmassuchetto> tl1000s77, no... the thin clients change =)
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| 12:15 | tl1000s77, so their mac address
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| 12:17 | <tl1000s77> vmassuchetto: ahh...
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| 12:19 | <Appiah> yes it asks the dhcpserver twice
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| 12:19 | first on pxe boot
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| 12:19 | then when it launches the image it runs another dhcp client
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| 12:19 | :)
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| 12:25 | <vmassuchetto> tl1000s77, any idea of whats happening?
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| 12:26 | <Hyperbyte> vmassuchetto, your thin client gets a different IP during PXE boot than it does after it's booted the network image?
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| 12:27 | <vmassuchetto> Hyperbyte, I can see on the PXE prompt on boot something like ip=<right ip>:<dhcp server>
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| 12:27 | Hyperbyte, but after its booted, on the thin client I do a ifconfig, and theres the wrong ip
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| 12:28 | Hyperbyte, i dont know exactly how the boot process work
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| 12:28 | <Hyperbyte> vmassuchetto, what's <right ip> and what's <wrong ip> ?
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| 12:29 | Completely different ranges?
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| 12:29 | Because it sounds like you have two DHCP servers running in your network.
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| 12:30 | As Appiah said earlier, when the client boots the PXE boot rom requests and IP and next-server from the DHCP server
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| 12:30 | <vmassuchetto> Hyperbyte, <right ip> is within the desired range for network boot, and <wrong ip> is the common dhcp range for internet access of the other non-network-boot users
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| 12:30 | <Hyperbyte> Then it reads an image from the next-server, boots that, and within the image is another dhclient that requests an IP address
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| 12:30 | Well duh then. :) You can't have two DHCP servers in one network.
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| 12:31 | How is the client to know what servers' response it should listen to?
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| 12:31 | <vmassuchetto> Hyperbyte, im not sure i have two.... how can i check?
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| 12:31 | Hyperbyte, you mean the next-server dhcpd.conf option?
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| 12:32 | <Hyperbyte> No
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| 12:32 | You have one DHCP server on your terminal server, which hands out what you call <right ip> range addresses
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| 12:32 | <vmassuchetto> Hyperbyte, they are different servers
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| 12:32 | <Hyperbyte> And you have another DHCP server in your network, which is handing out what you call 'common dhcp range' adresses
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| 12:33 | <vmassuchetto> Hyperbyte, the ltsp server does not have a dhcp server installed
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| 12:34 | <Hyperbyte> So you have one DHCP server, and it is handing out both <right ip> and <wrong ip> ranges?
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| 12:34 | <vmassuchetto> Hyperbyte, yes, via classes that match the PXEClient string
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| 12:34 | <Hyperbyte> Ah
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| 12:34 | Well there's your problem then.
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| 12:34 | <vmassuchetto> Hyperbyte, i guess
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| 12:35 | <Hyperbyte> 14:30 <Hyperbyte> As Appiah said earlier, when the client boots the PXE boot rom requests and IP and next-server from the DHCP server
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| 12:35 | 14:30 <Hyperbyte> Then it reads an image from the next-server, boots that, and within the image is another dhclient that requests an IP address
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| 12:35 | The second client is the regular Linux dhclient.
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| 12:35 | <vmassuchetto> Hyperbyte, ok... how (or where) the ltsp handles the dhcp request?
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| 12:36 | Hyperbyte, i tried the /etc/network/interfaces file, but theres nothing there
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| 12:36 | <Hyperbyte> What are you trying to do exactly?
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| 12:36 | <vmassuchetto> Hyperbyte, forget what i said
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| 12:37 | <Hyperbyte> mmmk...
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| 12:37 | <vmassuchetto> Hyperbyte, is there a way to make this client to get the range i want?
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| 12:37 | <Hyperbyte> Yes, specify mac address in dhcpd.conf rather than PXE client string
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| 12:37 | <vmassuchetto> Hyperbyte, because its getting some concurrent ips in the network
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| 12:38 | Hyperbyte, well... thats hard for me... =/
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| 12:38 | Hyperbyte, as i said, these clients keep changing everyday
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| 12:38 | <Hyperbyte> Can I ask why you're putting it in different ranges?
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| 12:38 | <vmassuchetto> Hyperbyte, the network has reserved ips for each machine
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| 12:39 | Hyperbyte, but they are set in each client, not in the dhcp server
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| 12:39 | Hyperbyte, so the thin clients keep taking these ips from other clients
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| 12:39 | <Hyperbyte> vmassuchetto, okay. Would it be possible for you to isolate the thin client network completely?
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| 12:40 | Because that would definitely be the best solution I think.
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| 12:40 | <vmassuchetto> Hyperbyte, not really
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| 12:40 | <Hyperbyte> For example, add an extra NIC in your router, make a new range for the LTSP setup, put the server in there, and run DHCP on that range for the thin clients
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| 12:40 | <vmassuchetto> Hyperbyte, they need to be under the proxy as well due to some services
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| 12:41 | <Hyperbyte> Well, they can still be if you seperate the network. :)
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| 12:41 | <vmassuchetto> Hyperbyte, in a different subnet?
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| 12:41 | <Hyperbyte> Yeah
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| 12:41 | <vmassuchetto> Hyperbyte, sorry... language issues =)
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| 12:41 | <Hyperbyte> Hehehe
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| 12:42 | Let's say you have 192.168.0.x, where all your computers are... and your router is 192.168.0.1
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| 12:42 | <vmassuchetto> Hyperbyte, ok, i would need some dhcpd.conf samples for that... i tried doing this with no success.. =/
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| 12:42 | <Hyperbyte> You add a new network card to your router, make it 192.168.1.1, run DHCP on there, make the next-server 192.168.1.2, and let all clients go nuts in their own range.
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| 12:42 | I can show you mind.
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| 12:42 | *mine
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| 12:43 | <vmassuchetto> Hyperbyte, nice...
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| 12:44 | <Hyperbyte> http://local.recreatie-zorg.nl/jan/dhcpd.txt
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| 12:44 | That's what mine looks like
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| 12:45 | 192.168.101.x is my wireless, there's no LTSP there
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| 12:45 | 192.168.100.x is my regular network, with all thin clients in there amongst some other servers
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| 12:46 | <vmassuchetto> Hyperbyte, how the interfaces know wich subnet to take?
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| 12:47 | <Hyperbyte> A DHCP server for 192.168.101.0 network cannot give leases on the 192.168.100.1 interface
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| 12:48 | Your DHCP server reads the config, looks at the interfaces, and sees which interfaces it can serve what leases on.
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| 12:48 | If you do it this way, you have both networks seperated by the router, which means you can never get DHCP conflicts like you have now, or other conflicts between your thin clients and other PC's.
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| 12:49 | <vmassuchetto> Hyperbyte, ok... thanks
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| 12:50 | <Hyperbyte> Cleanest solution, if you have the possibility to seperate your clients like this.
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| 12:51 | It of course also means your thin clients will all have to be connected to a seperate switch, completely disconnected from all other network devices, except your router.
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| 12:51 | Else the thin clients will still pick up DHCP packets from the other range.
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| 14:50 | <frederickjh> Is there a command line command that you can run in a script to see if LTSP is installed?
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| 14:52 | <Appiah> umm
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| 14:52 | check your package manager?
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| 14:52 | <frederickjh> worth a try
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| 14:53 | <Appiah> debian/ubuntu dpkg -l | grep -i ltsp
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| 14:53 | rpm based : rpm -qa | grep -i ltsp
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| 14:53 | I guess
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| 14:59 | <frederickjh> dpkg -l | grep -i ltsp-server works, however it works without the -i option as well. What is the -i grep option for Appiah?
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| 14:59 | <Appiah> ignores cases
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| 15:00 | upper/lower
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| 15:00 | <frederickjh> Oh, Ok thanks I learned something new to day.
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| 15:00 | Now I can go home.
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| 15:00 | <Appiah> ^^
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| 15:00 | time to go home for me too
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| 15:29 | <alkisg> vmassuchetto: you can use "Linux ipconfig" or "udhcp" as the client identifiers for the second IP range, instead of trying to match "PXEClient"
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| 15:29 | The exact value depends on your distro/version. Which one are you using?
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| 15:32 | <Hyperbyte> alkisg, that's not gonna work if he has other Linux machines or servers in his network that depend on DHCP though
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| 15:33 | Is it?
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| 15:34 | <alkisg> Hyperbyte: it'll work. Regular machines will get IPs from the regular range, while pxe booted machines will match the PXE range.
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| 15:34 | Regular linux machines send something related to dhclient, which isn't used in ltsp
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| 15:34 | <Hyperbyte> Oh, that I didn't know.
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| 15:34 | <alkisg> AFAIK there's dhclient, ipconfig, and udhcpc. The 2 latter are used in LTSP.
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| 15:35 | (in Debian/Ubuntu, no idea about other distros)
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| 15:35 | <Hyperbyte> Regardless I'd still choose to seperate different ranges physically to avoid headaches, but it's good to know. :)
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| 15:36 | <alkisg> E.g. here we sometimes boot clients with their standalone windows installations, sometimes as LTSP thin/fat clients. We wouldn't want to change the cabling each time.
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| 15:42 | <Hyperbyte> I guess for each setup there's pro's and con's. :)
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| 16:27 | <antoiner> Hi, I see in some tutorials in how to update the chroot this line : "export LTSP_HANDLE_DAEMONS=false" ........ But when I google over this variable I can't see any information about it .... Does it have effects ? What effects it does and What is it's default value ? Thank you very much
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| 16:49 | <antoiner> Hi, I see in some tutorials in how to update the chroot this line : "export LTSP_HANDLE_DAEMONS=false" ........ But when I google over this variable I can't see any information about it .... Does it have effects ? What effects it does and What is it's default value ? Thank you very much
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| 16:57 | <staffencasa> Where do i setup DPMS for my ltsp clients? I recently ran into an issue where xscreensaver may be hanging machines and that's where I used to enable dpms features. If I'm not using Xscreensaver, where can I get dpms to work?
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| 16:58 | I don't have an xorg.conf file, btw
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| 17:06 | <Hyperbyte> staffencasa, I believe it's X_BLANK or X_BLANKING in the lts.conf
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| 17:06 | <Hyperbyte> See:
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| 17:06 | !lts.conf | echo staffencasa
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| 17:06 | <ltsp> staffencasa lts.conf: http://manpages.ubuntu.com/lts.conf.
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| 17:07 | <staffencasa> Yeah, i saw that but I wasn't sure if that went in lts.conf. I'll try that, thanks
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| 17:07 | <Hyperbyte> antoiner, what are you trying to do exactly and what is the problem you run into?
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| 17:16 | <antoiner> I'm trying to understand what I do when I follow the ubuntu's "update chroot" tutorial ........
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| 17:17 | I can't find any documentation on the LTSP_HANDLE_DAEMONS or any evironment variable .......
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| 17:17 | <Hyperbyte> Do you have a link to the tutorial?
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| 17:18 | <antoiner> https://help.ubuntu.com/community/UbuntuLTSP/UpdatingChroot
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| 17:32 | <staffencasa> Hyperbyte, I put X_BLANKING=60 into my /var/lib/tftpboot/ltsp/i386/lts.conf file where i've always put my changes and nothing happened. The screen did not go blank. I tried setting it to 2 also, thinking it may be in minutes, but that didn't work either.
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| 17:34 | <Hyperbyte> No, it's seconds. Did you see the notes on the manpage?
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| 17:35 | <staffencasa> yeah, just didn't know what else to try
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| 17:37 | <staffencasa> It looks like something is turning it on, thought. Maybe I'll just go with that. It looks to be around 8-10 minutes
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| 17:38 | <Hyperbyte> According to the manpage it could be something on the server that's overring the X_BLANKING from lts.conf
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| 17:39 | antoiner, I can't find much on LTSP_HANDLE_DAEMONS too, but if it works, that's great, right?
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| 17:40 | <alkisg> antoiner: cat /opt/ltsp/i386/sbin/start-stop-daemon
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| 17:41 | LTSP replaces start-stop-daemon there so that no daemons get started *within* the chroot, which would make no sense
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| 17:41 | <antoiner> ohhhh, thank you ;)
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| 17:41 | <alkisg> That method is proposed somewhere in debian policy, along with a policy file which I don't remember its path off hand
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| 17:41 | <antoiner> That's why in the tutorial it does not go back to true
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| 17:42 | <Hyperbyte> alkisg: /opt/ltsp/i386/usr/sbin/policy-rc.d.ltsp
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| 17:42 | <alkisg> As soon as you exit the chroot the env var will be lost, so it's not needed to restore it
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| 17:42 | <Hyperbyte> :)
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| 17:42 | <alkisg> Nice :)
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| 17:42 | antoiner: but for newer ltsp versions, there's the "ltsp-chroot" command, so one shouldn't need to manually specify LTSP_HANDLE_DAEMONS anymore
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| 17:43 | In other words the tutorial you're following is a bit outdated
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| 17:43 | <antoiner> lol .... even better I was doing it the "hard way" ;)
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| 17:44 | <antoiner> Where can I find those informations ? even in the wiki of ltsp there is no mention of that command ....
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| 17:45 | <alkisg> distro/version?
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| 17:45 | The wiki is a bit outdated too :)
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| 17:45 | <antoiner> ubuntu/11.04 32bit
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| 17:45 | <alkisg> sudo ln -s /usr/share/ltsp/scripts/ltsp-chroot /usr/sbin/ltsp-chroot
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| 17:45 | ltsp-chroot --help
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| 17:45 | Those should get you going
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| 17:46 | <alkisg> The /usr/sbin/ltsp-chroot symlink is missing in Ubuntu 11.04, it's fixed in 11.10 though
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| 17:46 | <antoiner> thank you for the tip
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| 17:46 | <Hyperbyte> alkisg, it's not missing on my 11.04
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| 17:46 | Well *missing*
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| 17:46 | It's not a symlink at all
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| 17:47 | <alkisg> Hyperbyte: it's there on /usr/sbin/ltsp-chroot?
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| 17:47 | <Hyperbyte> Yeah
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| 17:47 | <alkisg> antoiner: then don't do the ln -s above, not needed
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| 17:47 | <Hyperbyte> root@terminalserver:/usr/share/ltsp/plugins/ltsp-build-client/common# ls -al /usr/sbin/ltsp-chroot
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| 17:47 | -rwxr-xr-x 1 root root 4768 2011-04-13 20:29 /usr/sbin/ltsp-chroot
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| 17:47 | root@terminalserver:/usr/share/ltsp/plugins/ltsp-build-client/common# ls -al /usr/share/ltsp/scripts/ltsp-chroot
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| 17:47 | -rwxr-xr-x 1 root root 4768 2011-04-13 20:29 /usr/share/ltsp/scripts/ltsp-chroot
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| 17:47 | <alkisg> I thought that was committed after 11.04
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| 17:47 | <Hyperbyte> In hindsight that should've probably gone to pastebin....
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| 17:47 | Either way, that's both files.
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| 17:48 | <alkisg> Hyperbyte: dpkg -L ltsp-server | grep ltsp-chroot
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| 17:48 | What's the output of that?
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| 17:48 | <Hyperbyte> Lists both files
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| 17:48 | <alkisg> It shouldn't... but anyway, not much harm done
| |
| 17:49 | Btw here's the bug report for ltsp-chroot in Ubuntu: https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/589833
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| 17:49 | <antoiner> Is there any way to script ltsp-chroot ? something like sh -c "" ?
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| 17:49 | <alkisg> Fix released 2011-07-06 - that's why I thought it wasn't there in 11.04
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| 17:49 | antoiner: ltsp-chroot command
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| 17:49 | Say an example, what do you need?
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| 17:50 | E.g. sudo ltsp-chroot update-initramfs -u
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| 17:51 | <antoiner> updating the chroot with new sources ....... I copy my sources to the correct folder and then, if I understand, I need to do something like : ltsp-chroot -p "apt-get update&&apt-get dist-upgrade" ...
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| 17:52 | am I right ?
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| 17:52 | <alkisg> To enter multiple commands, you can invoke sh in the chroot, like this: sudo ltsp-chroot sh -c "ls; ls"
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| 17:52 | But it would be easier to just do this:
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| 17:52 | sudo ltsp-chroot --mount-package-cache apt-get update
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| 17:52 | sudo ltsp-chroot --mount-package-cache apt-get dist-upgradde
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| 17:52 | With a single d there
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| 17:53 | --mount-package-cache uses the server apt cache so that you only download the packages once, for both the server + the chroot
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| 17:53 | <antoiner> That option use the server list and not the client chroot list ?
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| 17:53 | <alkisg> Downside is that you cannot run apt on the server while updating the chroot
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| 17:53 | <antoiner> ok
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| 17:53 | <alkisg> Not the list, just the package cache
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| 17:53 | Hmm also on the first command it wasn't needed
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| 17:54 | So: sudo ltsp-chroot apt-get update && sudo ltsp-chroot --mount-package-cache apt-get dist-upgrade
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| 17:54 | Update the tutorial if you want, to help others
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| 17:54 | <antoiner> I understand ....... However in your example it's not better to say : ltsp-chroot --mount-proc --mount-package-cache apt-get dist-upgrade ?
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| 17:55 | <alkisg> Yes, some packages require proc to be mounted, so indeed it's better
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| 17:55 | <antoiner> I'll do it ;) ltsp suffer of so much lack of documentation .... a shame that this command is not documented
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| 17:56 | <alkisg> Yes unfortunately very few people help with ltsp documentation
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| 17:56 | <antoiner> One question, I'm seeing that it's possible to mount pts from the server ........ what would be the need of it ?
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| 17:57 | <alkisg> antoiner: btw, for older ltsp versions that don't have ltsp-chroot, here's a link to put to the documentation: http://bazaar.launchpad.net/~ltsp-upstream/ltsp/ltsp-trunk/view/head:/server/scripts/debian/ltsp-chroot
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| 17:57 | /dev/ and /dev/pts are needed for a very small number of packages, e.g. grub
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| 17:58 | So it's better to not do it ever, but keep it in mind in case some package won't install/update without it, and use it then
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| 18:03 | <antoiner> ok, thank you for all the tip
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| 18:17 | <Hyperbyte> Hey vagrantc. :)
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| 18:18 | <alkisg> So now with the nbd named-based exports... if `nbd-server -c` works as advertised, even over nfs, can we do the following to simplify our code base?
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| 18:18 | 1) ditch aufs for nbd-based chroots, as they're already read-write
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| 18:18 | 2) ditch bind-mounts for nfs-based chroots - the list is getting too big for fat clients, while a writeable nbd overlay on top of nfs would make it less of a headache
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| 18:18 | 3) create nbd swap files inside the writable nbd mount - that lets us ditch nbdrootd and nbdswapd
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| 18:18 | If in time I tested all those and they all worked fine, would it make sense to switch to using them?
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| 18:21 | <roasted> Hey there.
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| 18:21 | Any of you guys have a solid guide for binding network interfaces?
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| 18:21 | I have a server with 4x gig ports and I'd ike to bind them into 2 since this server is serving two labs.
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| 18:21 | <alkisg> binding? or bonding?
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| 18:21 | <roasted> bonding, I suppose. ha.
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| 18:22 | making 2 interfaces act as one for higher throughput
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| 18:22 | <alkisg> That's what I used: https://help.ubuntu.com/community/UbuntuLTSP/Trunking
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| 18:22 | <roasted> I assume this is done at linux and not the switch level?
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| 18:22 | <alkisg> It's been more than 2 years since I wrote it though, no idea if anything's changed
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| 18:22 | <roasted> do you recall what distro/version you were running when you wrote it?
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| 18:23 | <alkisg> Yes I've written all that on the wiki
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| 18:23 | <roasted> yeah I see that now :)
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| 18:23 | I wonder what changed from 810 to 1004...
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| 18:23 | <vagrantc> alkisg: i can still see a use-case for reducing the server load by having some writeable space in tmpfs for thin clients with enough ram
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| 18:23 | alkisg: but that sounds promising :)
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| 18:24 | alkisg: we also need to make sure that nbd-client doesn't get swapped out
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| 18:24 | <alkisg> vagrantc: I think < 10 MB are needed for thin clients, so it shouldn't make any difference on server load
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| 18:24 | <vagrantc> i.e. it needs to stay resident in memory
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| 18:24 | <alkisg> Of course when swap is used it would, but then it would be necessary as the client wouldn't have enough ram
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| 18:24 | I think nbd-client -swap for the root file system would do it
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| 18:24 | <Hyperbyte> vagrantc, I mailed a Dutch translation of LDM a while ago to the LTSP developers mailing list, but it never got included. Did you get it? :)
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| 18:25 | <vagrantc> Hyperbyte: what's the language code?
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| 18:26 | Hyperbyte: nl?
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| 18:26 | <alkisg> [Ltsp-developer] LDM Dutch translation Thu, 21 Oct 2010 16:43:01 +0200 (21/10/2010 05:43:01 μμ)
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| 18:27 | * vagrantc looks | |
| 18:27 | <Hyperbyte> Not sure if it's up-to-date still, but if strings have changed since then let me know and I'll fix. :)
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| 18:27 | <roasted> with a server with 24gb of RAM how much swap would you guys give it?
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| 18:27 | its running LTSP only
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| 18:28 | <vagrantc> Hyperbyte: sorry i missed it
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| 18:28 | Hyperbyte: i'll try and get it later today
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| 18:29 | <Hyperbyte> vagrantc: cool :-)
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| 18:29 | <vagrantc> Hyperbyte: i'll commit it now, but it probably needs some updating.
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| 18:31 | <Hyperbyte> :)
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| 18:32 | <vagrantc> alkisg: there are also some security considerations for having writeable content stored on the server
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| 18:32 | <alkisg> Yes that was my main concern, but it mostly affect the swap space, which is already a security concern
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| 18:33 | While other files that are modified on boot shouldn't be very sensitive - unless if someone regenerates ssh keys on boot
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| 18:33 | <vagrantc> nbd swap isn't enabled by default though... at least not on debian
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| 18:34 | <alkisg> It would be the same now too, only when NBD_SWAP is enabled the swap file would be generated
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| 18:35 | And with NBD_SWAP_SIZE (per client) the file size could be specified, I think nbd on the server would only write the used sectors anyway
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| 18:35 | <vagrantc> Hyperbyte: i pushed the translation... will check if it needs updates later (probably does)
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| 18:38 | <Hyperbyte> Let me know. :)
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| 20:56 | <dptech> hello, where can i found french users ?
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| 21:08 | <Hyperbyte> dptech, I don't think there's a French LTSP support channel.
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| 21:09 | Do you have problems with English?
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| 21:10 | <dptech> thanks and i don't have problems with English ...
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| 21:12 | i'm going to see ltsp docs. many thanks
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