IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 18 March 2012 (all times are UTC)
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| 18:45 | <Hyperbyte> Hey hey hey!
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| 18:46 | * vagrantc waves to alkisg | |
| 18:47 | * alkisg waves back, lights a cigarette and starts working on epoptes... :) | |
| 18:47 | <vagrantc> heh
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| 19:18 | <elias_a> alkisg: Which one of the two is more dangerous to your health? :P
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| 19:20 | <alkisg> elias_a: haha, both are physically harmful but fun nevertheless :)
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| 19:20 | <elias_a> alkisg: Take care - fun job can also be done too much! :P
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| 19:21 | alkisg: Not that I would not admire your dedicated attitude :)
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| 19:22 | <alkisg> No worries, programming is just a hobby for me, I wouldn't want it as my main job, it'd end up being boring...
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| 19:26 | <Hyperbyte> alkisg, it's quite a challenge to do 40 hours per week.
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| 19:30 | <alkisg> At times I've been programming even 80 hours per week... but I wouldn't want to miss the feeling of actually using in my classrooms the programs I develop
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| 19:31 | <muppis> It is actually quite neat if programming something for self and actually gets it working.
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| 19:52 | <knipwim> alkisg: vagrantc: I was thinking of making a generic detect_arch function in ltsp-common-functions
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| 19:52 | http://dpaste.com/718333/
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| 19:56 | <vagrantc> we used to have something like that somewhere
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| 19:56 | <alkisg> knipwim: sounds fine! In a related subject, if we changed our packaging so that /Distro dirs were copied to /common instead, maybe we wouldn't need to detect the vendor so much, right?
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| 19:58 | <vagrantc> or we could actually make use of the vendor-functions hooks.
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| 19:58 | although calling lsb_release is actually kind of slow, at least on debian, so i wouldn't want to use it too often.
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| 19:58 | might be worth caching the architecture somewhere at build time.
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| 19:59 | <vagrantc> seems unlikely the architecture would change.
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| 19:59 | (for a given chroot)
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| 20:00 | <alkisg> Is there a point to include all the /Distro dirs of ltsp-build-client? E.g. would it ever be possible for me to build a Fedora chroot while on Ubuntu?
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| 20:00 | <vagrantc> in fact, ltsp-client-core could ship the architecture information in the package itself, since it's an architecture-specific package.
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| 20:00 | alkisg: it isn't currently, but it might be possible.
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| 20:00 | for ltsp-build-client, i don't see a huge disadvantage in shipping them all.
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| 20:01 | <alkisg> vagrantc: I think that it should be handled by the chroot though, not by the the server-side plugins, as (I think) those assume that the host is $DISTRO too
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| 20:02 | I'm not expressing myself well... let me try to rephrase..
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| 20:05 | Fedora/000-verify-tftpdir: cat /etc/xinetd.d/tftp ... etc
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| 20:05 | Many distro-specific ltsp-build-client plugins assume that the host is the same distro as the chroot
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| 20:06 | <knipwim> alkisg: certainly the client init-ltsp.d content could be packaged this way
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| 20:06 | <alkisg> I think that could also be the case for ltsp-build-client, ltsp-chroot etc
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| 20:08 | <vagrantc> if the ltsp-client package shipped a file that defines some things such as DISTRO and ARCH and so on ... that might be the simplest solution to a lot of this.
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| 20:09 | then it could be a file that's simply sourced
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| 20:09 | <alkisg> So e.g. ltsp-chroot would source ltsp-chroot-functions, and that file would be different per distro, but packaging would make it have the same name always
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| 20:09 | That way we wouldn't even need $DISTRO variables (but we would need $ARCH)
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| 20:09 | <knipwim> yes, like the example i made for ltsp-info earlier
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| 20:10 | <vagrantc> there was an ltsp-vendor-functions, so sourced at the bottom of ltsp-common-functions ... wherein distros could ship their own functions and override the common ones.
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| 20:11 | and if distros just started making sure to ship the vendor-functions ...
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| 20:12 | <knipwim> vagrantc: is anyone using those?
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| 20:12 | like, is there distro that's currently using that option
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| 20:12 | * vagrantc hasn't needed to diverge from the upstream functions | |
| 20:12 | <vagrantc> but things like boolean_is_true ... really distro's shouldn't diverge that
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| 20:13 | knipwim: don't know ... thought fedora was.
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| 20:13 | <knipwim> the whole reason for the detect_arch was the line in ltsp-update-image: ARCH=$(dpkg --print-architecture)
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| 20:14 | <vagrantc> so i think it would be better to have ltsp-common-functions with an ltsp-vendor-functions where the distro-specific detect_arch function lives.
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| 20:14 | <knipwim> i agree
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| 20:15 | where would they be located? server/scripts/$distro ?
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| 20:15 | <alkisg> Right, and override the default detect_arch() in ltsp-common-functions that uses the generic uname -m
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| 20:15 | <vagrantc> well, the generic "uname -m" approach isn't really generic.
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| 20:15 | as in different distros map the output differently ... so there isn't even a generic, other than a proof-of-concept.
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| 20:16 | <alkisg> Then the generic one could die("your distro needs to impement this function")
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| 20:16 | <vagrantc> that sounds better.
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| 20:17 | <alkisg> But there are cases where a generic implementation exists, and only a few distros need to override it
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| 20:17 | <vagrantc> sure
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| 20:18 | * vagrantc looks at server/plugins/ltsp-build-client/*/001-set-arch | |
| 20:18 | <vagrantc> there's a common plugin that everone overrides, for example :)
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| 20:19 | <alkisg> So: ltsp-tool would source ltsp-tool-functions, and ltsp-tool-functions at the end would source ltsp-vendor-function, and that file wouldn't exist upstream,
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| 20:19 | and packagers would rename the "ltsp-ubuntu-functions" or "ltsp-gentoo-functions" to "ltsp-vendor-functions" so that we wouldn't care about the distro at all
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| 20:20 | <vagrantc> maybe ltsp-tool-vendor-functions ?
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| 20:20 | <alkisg> Right, sorry
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| 20:20 | Or Vendor/ltsp-tool-functions, in the upstream tree
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| 20:20 | <knipwim> nice
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| 20:22 | that way it's easier to share script between client and server packages
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| 20:25 | <alkisg> Could the info about ARCH (and some other things like versions needed by ltsp-info) go in /etc/ltsp/info (or system or some other name)?
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| 20:25 | Which would be a conffile generated by the packagers?
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| 20:25 | ...or /usr/share/ltsp/info...
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| 20:27 | * alkisg goes back to removing zenity from epoptes, to get it ready for tomorrow :) | |
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| 20:27 | <knipwim> good luck
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| 20:27 | i've noted to package ltsp-client with all init-ltsp.d in common
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| 20:28 | for starters
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| 20:29 | <alkisg> Ah, knipwim btw we have a grep init=/sbin/init-ltsp.d cmdline in some places in the code, which doesn't match the gentoo real_init command line,b
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| 20:29 | but |ltsp does match it... maybe we can simplify it to just grepping for ltsp? Or that's too generic?
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| 20:31 | ltsp-core: # Gracefully exit if an LTSP boot was not requested
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| 20:31 | grep -Eqsw "init=/sbin/init-ltsp|ltsp" /proc/cmdline || exit 0
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| 20:32 | Or maybe instead of passing "ltsp", we can pass "init-ltsp", and always just grep for that
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| 20:40 | <tbruff13> can anyone tell me how to start an ltsp server once I have it built in Kubuntu
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| 20:49 | <vagrantc> apparently not fast enough...
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| 20:49 | <tbruff13> can someone tell me out to start LTSP in kubuntu
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| 20:50 | <vagrantc> tbruff13: what do you mean by start?
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| 20:51 | there's no specific LTSP service ... it's a collection of other services (tftp, DHCP, NFS/NBD, ssh, etc.)
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| 20:53 | <tbruff13> how do i make the server run
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| 20:53 | I built and it is sitting in the /opt folder
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| 20:53 | but how do i enable it
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| 20:54 | <vagrantc> it should automatically get enabled on ubuntu, as far as i know.
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| 20:54 | have you tried booting a thin client?
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| 20:54 | <tbruff13> yes
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| 20:54 | vagrantc: how can i check to see if it is running
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| 20:55 | <vagrantc> tbruff13: boot a thin client...
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| 20:55 | <tbruff13> and do i need to restart my laptop after building ltsp to make it run
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| 20:55 | <vagrantc> "make it run" is not a helpful question ...
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| 20:56 | you installed ltsp-server on your laptop, ran ltsp-build-client ... ?
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| 20:56 | tbruff13: what happens when you try to boot a thin client?
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| 20:56 | <tbruff13> yes
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| 20:56 | i ran those
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| 20:56 | nothing happened Dhcp did not find it
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| 20:57 | do i need to reboot to make the server run
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| 20:57 | <vagrantc> ok, so you need to make sure your DHCP server is running ...
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| 20:57 | pgrep -l -f dhcpd
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| 20:57 | what version of ubuntu?
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| 20:58 | <tbruff13> Kubuntu 12.04
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| 20:58 | <vagrantc> oh, fun ...
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| 20:59 | stgraber: ^^
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| 20:59 | <tbruff13> Yes and I am doing these for a year long project so that a school full of computers can run LTSP in April
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| 20:59 | <vagrantc> 12.04 isn't really released yet ...
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| 20:59 | <tbruff13> vagrantc: it is a month away I have been assured by Canonical that for my purposes there should be no bugs
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| 21:00 | <vagrantc> tbruff13: sounds like your dhcp server isn't running, and do you have two network cards on your laptop?
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| 21:00 | tbruff13: stgraber is the ubuntu developer working on LTSP, so they'd be in a better position to help you.
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| 21:00 | <tbruff13> this is the output of that command 30779 sudo pgrep -l -f dhcpd
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| 21:00 | stgraber: help
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| 21:01 | <vagrantc> tbruff13: you might want to search for step-by-step documentation on the ubuntu wiki, i don't think dhcp configuration has changed much.
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| 21:01 | <stgraber> tbruff13: what are you getting with "initctl list | grep isc"?
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| 21:02 | <tbruff13> vagrantc: I followed a guide to set up LTSP
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| 21:02 | isc-dhcp-server stop/waiting isc-dhcp-server6 stop/waiting
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| 21:02 | stgraber: thank you for your help
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| 21:02 | <stgraber> ok, so no dhcpd running
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| 21:03 | <tbruff13> stgraber: should i check to see if its installed?
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| 21:03 | <stgraber> tbruff13: what do you have in /var/log/upstart/isc-dhcp-server.log? (use paste.ubuntu.com if it's more than a few lines long)
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| 21:04 | no, you clearly have isc-dhcp-server installed, just not running. Likely because of broken configuration. /var/log/upstart/isc-dhcp-server.log should contained the reason why it didn't start
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| 21:04 | btw, who at Canonical told you it was safe to use LTSP in production at this point? I'd like to talk to that person :)
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| 21:05 | because I never said it was and I'm still planning on landing a few more network related changes and a new LTSP before the release...
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| 21:05 | <tbruff13> stgraber: he told me the beta was safe enough to use
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| 21:07 | stgraber: it did not start
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| 21:09 | stgraber: i will be right back i am going to rebooty
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| 21:12 | <alkisg> tbruff13: did you put the correct subnet to your dhcpd.conf?
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| 21:15 | <stgraber> my guess is that he either didn't write the changes to /etc/ltsp/dhcpd.conf or that something is wrong in the config or that I messed up the upstart code for isc-dhcp
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| 21:16 | all of which would be easily figured out with the content of /var/log/upstart/isc-dhcp-server.log :)
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| 21:17 | I "think" I tried the new isc-dhcp + upstart jobs with LTSP when I uploaded it, but not completely sure...
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| 23:41 | <highvoltage> http://mjg59.dreamwidth.org/11235.html
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