IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 3 June 2014 (all times are UTC)
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| 11:03 | <Hyperbyte> Hi work_alkisg! :-) Do you know how I can blacklist a certain USB HID device from being used in Xorg on LTSP thin clients?
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| 11:04 | <work_alkisg> Hi Hyperbyte... do you know how to do that without LTSP?
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| 11:04 | :)
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| 11:04 | <Hyperbyte> Not really. Via Xorg.conf, but I haven't touched that.
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| 11:07 | <work_alkisg> It's about xorg or about kernel modules?
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| 11:07 | First you need to find the way to blacklist it without ltsp
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| 11:08 | Then ask here :)
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| 11:08 | <Hyperbyte> I don't have Linux without LTSP :(
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| 11:09 | It's about Xorg modules. You can blacklist these via Xorg.conf I believe, but I have no idea how that works with LTSP. I believe LTSP also does stuff with Xorg config doesn't it?
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| 11:09 | Kernel module isn't issue. It's a USB headset with buttons, those buttons continually confuse Gnome into thinking mouse buttons are constantly pressed, etc... mice stop working... it's nuts.
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| 11:10 | <work_alkisg> Sorry, I don't know what needs to be done in linux so I can't comment on how this would be done in ltsp
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| 11:13 | <Hyperbyte> Meh... it's piss easy.
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| 11:14 | Just put some xorg.conf snippet in /usr/share/X11/xorg.conf.d/
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| 11:14 | <work_alkisg> What snippet?
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| 11:14 | Pastebin it
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| 11:14 | <Hyperbyte> Why didn't you just say that? ;'(
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| 11:14 | <work_alkisg> :D
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| 11:14 | <Hyperbyte> :P
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| 11:14 | <work_alkisg> Btw, someone should file a bug report about ltsp starting to use xorg.conf.d...
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| 11:15 | <Hyperbyte> There: http://pastebin.com/cZKqvSFE
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| 11:15 | Wait... bug... why?
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| 11:15 | <work_alkisg> To make it easier to produce xorg snippets with ltsp
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| 11:16 | <Hyperbyte> Oh, right.
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| 11:16 | See, you knew all this already.
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| 11:16 | Just trying to frustrate me further here. :P
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| 11:17 | <work_alkisg> I don't know it, no.. for me it would make more sense if that was a kernel module
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| 11:18 | Hyperbyte: and, why don't you just drop that file in the chroot?
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| 11:18 | You want that for all clients, don't you?
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| 11:18 | <Hyperbyte> Nah, it's a USB headset, which provides audio device (do need!) and USB input device for the buttons on it (do not want!)
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| 11:18 | The audio driver is kernel module, the USB input is Xorg module.
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| 11:19 | <work_alkisg> Gotcha
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| 11:19 | <Hyperbyte> work_alkisg, well obviously I meant /opt/ltsp/i386/usr/share... etc...
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| 11:19 | <work_alkisg> Hyperbyte: ok, why don't you just put it to $CHROOT/usr/share/X11/xorg.conf.d/ ?
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| 11:19 | <Hyperbyte> It's client Xorg stuff, if it's not on client it does absolutely nothing....
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| 11:19 | work_alkisg, that's what I did?
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| 11:19 | <work_alkisg> I don't understand
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| 11:19 | <Hyperbyte> 13:14 <Hyperbyte> Just put some xorg.conf snippet in /usr/share/X11/xorg.conf.d/
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| 11:20 | <work_alkisg> If that's how you solve it without ltsp, then putting that file in the chroot should work fine
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| 11:20 | I don't understand what you're telling me
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| 11:20 | <Hyperbyte> Yeah, but ^^ that was all I needed.
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| 11:20 | <work_alkisg> I don't understand if you're still having any issues, or if you solved them... :
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| 11:21 | <Hyperbyte> I did
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| 11:21 | I solved them between 13:10 and 13:13
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| 11:21 | Heh
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| 11:21 | It was actually pretty easy... I upgraded my chroot from 12.04 to 14.04, right... of course made backup for the old one.
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| 11:21 | But I couldn't for the life of me find the code that disabled the USB headsets input.
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| 11:22 | <work_alkisg> Cool :)
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| 11:22 | <Hyperbyte> Googled my ass off (but with wrong terms) and couldn't find the xorg.conf.d with the right configuration I needed to port....
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| 11:22 | When I asked you, I suddenly realized Xorg doesn't "blacklist", it "ignores"... which is right Google term... and then I found xorg.conf.d and then I found my old config for disabling the Plantronics headsets.
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| 11:24 | Boy, this whole thing got a lot more complicated than it was before I asked you. :P
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| 11:24 | Hahahahhahahhaha
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| 11:26 | Okay - here is one LTSP related
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| 11:26 | After LDM login, clients say "Warning: Permanently added ECDSA host key for 192.168.100.11 ..."
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| 11:28 | On Ubuntu 14.04
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| 11:28 | And plymouth doesn't seem to work anymore since client upgrade from 12.04 to 14.04
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| 11:29 | Are kernel parameters still correct? quiet splash plymouth:force-splash vt.handoff=7
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| 11:32 | <Axis_> Can anyone help me out?
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| 11:33 | <work_alkisg> !ask
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| 11:33 | <ltsp`> 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 a full hour after asking a question, as not everybody constantly monitors the channel.
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| 11:35 | <Axis_> I'm thinking about switching to Linux. What does it mean by LTS, "something about support until 2 years-5 years" Does that mean once the support ends, I won't be protected or?
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| 11:35 | <work_alkisg> That's a question for the #ubuntu channel, not for #ltsp
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| 11:35 | Ask there
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| 11:35 | <Axis_> Ah sorry. Thank you!
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| 11:35 | <work_alkisg> You're welcome
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| 11:36 | <Axis_> Take care, and have a good one.
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| 12:53 | <Hyperbyte> work_alkisg, any idea about the other two questions? :P
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| 13:23 | <alkisg> Hyperbyte: "work_alkisg" means I'm probably not in my pc, so not monitoring IRC.. :)
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| 13:23 | About the warning, it's normal
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| 13:23 | About plymouth: it's started normally, we just removed it from the initramfs
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| 13:24 | It increased the initramfs size and made troubleshooting more difficult
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| 13:24 | Plymouth is not included in the initramfs by default, but ltsp forced its inclusion in previous versions
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| 13:24 | So we're just using the defaults now, so any issues about it are not ltsp related anymore
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| 13:29 | <Hyperbyte> Okay
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| 15:19 | <bennabiy> alkisg: sorry for being touchy yesterday about the whole issue. I think I just misunderstood what you were hoping for and thought I was doing it right, but it still does not mean I should have an attitude about it.
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| 15:36 | <alkisg> bennabiy: I'm not hoping anything for LDM, because I really don't care about it... LDM, localapps, ltspfs, ltsp-build-client etc are parts of LTSP that I don't touch and don't care what others do with them
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| 15:37 | I was trying to give some ideas in order to be of some help, but you misunderstood my will to help with concern about the ldm implementation...
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| 15:57 | <bennabiy> yes, I appreciate you wanting to help
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| 15:58 | I will say I do not trust GRand as a PRNG
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| 15:58 | even if it is initially seeded with /dev/urandom to begin with
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| 15:59 | It is not cryptographically secure, and even tells you not to use it for anything other than poker games and the like
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| 16:08 | <alkisg> bennabiy: we're still talking about generating the salt, not about encryption, right?
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| 16:08 | Anyways, I really don't care about the implementation
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| 16:09 | <alkisg> When you have it ready, file a bug report in launchpad for it to be committed upstream, and maybe someone will push it
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| 20:48 | <gbaman> vagrantc: which env variable stores LTSP server IP?
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| 20:49 | thought it was $SERVER
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| 20:49 | but apparently not
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| 20:53 | <vagrantc> depends on the context
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| 20:53 | but SERVER is used
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| 20:54 | <gbaman> echo $SERVER on a terminal on a client just gives blank line
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| 20:54 | <vagrantc> there's also NBD_SERVER, NFS_SERVER, LDM_SERVER ...
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| 20:54 | from an xterm?
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| 20:54 | it's not exported to the user's session
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| 20:54 | <gbaman> sigh
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| 20:55 | how can I get it then?
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| 20:55 | <vagrantc> but you could derive it from $SSH_CONNECTION or $DISPLAY
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| 20:55 | in a fat client?
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| 20:55 | <gbaman> yes
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| 20:56 | got a script that user can run on pis that needs to get the LTSP server IP
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| 20:56 | $SSH_CONNECTION is empty
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| 20:56 | <vagrantc> right, fatclient
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| 20:57 | DISPLAY is probably set to something not useful
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| 20:57 | <gbaman> and $DISPLAY is just :7.0
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| 20:57 | yeah
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| 20:57 | <vagrantc> you might be able to source ltsp_common_functions and use one of the functions in there...
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| 20:57 | <gbaman> hmm, epoptes does it..
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| 20:58 | <vagrantc> you could also add an LDM hook to export it
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| 20:58 | it's available to LDM, you could just add it to the stuff LDM exports in the session...
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| 21:00 | add a hook in /usr/share/ldm/rc.d/X90-export-server:
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| 21:01 | CLIENT_ENV="$CLIENT_ENV LTSP_SERVER=$SERVER" ?
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| 21:02 | <gbaman> assuming that file should be empty?
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| 21:02 | * vagrantc wanders off... | |
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