IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 15 December 2016 (all times are UTC)
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| 06:34 | <ben-nabiy> alkisg vagrantc: I have a very unusual situation with a lab I am working on
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| 06:35 | We are having some strange SSH issues, and only one user can log in
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| 06:43 | <alkisg> ben-nabiy, good luck :)
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| 06:44 | JerryT, all of them work with ltsp-pnp, personally I'm using MATE
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| 07:00 | <alkisg> ben-nabiy: what issues?
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| 07:08 | <ben-nabiy> alkisg, we have only one user which can log in, and even trying to ssh into the lab is not working unless going out and back through the router
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| 07:08 | <alkisg> Ah, if ssh isn't working then it doesn't sound like an ltsp issue...
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| 07:08 | <ben-nabiy> ssh works to the server from the lab network
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| 07:08 | but only for 1 user
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| 07:09 | and not for a fresh user
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| 07:09 | <alkisg> Right, if ssh doesn't work for other users then it's not an ltsp issue
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| 07:09 | <ben-nabiy> Updating /var/lib/tftpboot directories for chroot: fat64
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| 07:09 | cp: cannot stat '/tmp/tmp.GlPm0x0yYk/boot/.': No such file or directory
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| 07:09 | when trying to build an image
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| 07:11 | <alkisg> Check for other error messages, like disk full etc
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| 07:12 | <ben-nabiy> no disk full
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| 07:12 | df -H shows nothing approaching full
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| 07:12 | <alkisg> So you run ltsp-update-image and you only see the cp error, nothing else?
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| 07:12 | <ben-nabiy> grub errors
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| 07:13 | <alkisg> Can't you pastebin the whole output?
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| 07:15 | <ben-nabiy> http://pastebin.com/fvtQtxU0
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| 07:16 | as far back as I can bring up
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| 07:16 | <alkisg> ben-nabiy: ah, you're talking about ltsp-build-client, not about ltsp-update-image
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| 07:17 | <ben-nabiy> alkisg, yes
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| 07:17 | <alkisg> OK, not interested in that, I'm using ltsp-pnp :)
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| 07:17 | * ben-nabiy sighs | |
| 07:17 | <alkisg> It's probably going to be removed in ltsp 6
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| 07:18 | Packages have all sort of issues when ran in chroots, that's why I didn't like the method and decided to implement ltsp-pnp...
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| 07:18 | Now it might be that grub doesn't see /sys mounted
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| 07:19 | But I really don't want to invest the time to troubleshoot it :)
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| 07:44 | <ben-nabiy> ok, so in a ltsp-pnp generated image, I cannot login, but I can ssh
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| 07:44 | (I have SCREEN_2=shell)
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| 07:44 | I even just created a user on the server, and that user cannot login
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| 07:52 | <alkisg> ben-nabiy: do you have epoptes installed?
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| 08:04 | <ben-nabiy> alkisg, yes
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| 08:06 | <alkisg> !vnc-edide
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| 08:06 | <ltsp> vnc-edide: To share your screen with me, open Epoptes → Help menu → Remote support → Host: srv1-dide.ioa.sch.gr, and click the Connect button
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| 08:07 | <alkisg> ben-nabiy: you can do that ^ so that I can then see the client logs etc
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| 08:08 | <ben-nabiy> alkisg, when I can log in, I will
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| 08:09 | <alkisg> ben-nabiy: you can't login to the server?
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| 08:09 | If not, then it's not an ltsp issue...
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| 08:09 | <ben-nabiy> It is headless
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| 08:10 | <alkisg> No x2go or ssh -x available for any user at all?
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| 08:10 | or vnc, whatever...
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| 08:10 | Or, from a fat client with that specific user that could login
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| 08:11 | <ben-nabiy> got a core dump seg fault when trying to ssh -x and then run epoptes
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| 08:11 | will try x2go
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| 08:12 | <alkisg> ben-nabiy: which client should we try to login with? the thin or the fat?
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| 08:13 | <ben-nabiy> neither is working
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| 08:13 | except the one user logged in
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| 08:13 | I am sitting next to the fat
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| 08:13 | <alkisg> ben-nabiy: put a username there
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| 08:13 | leave "server" as it is
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| 08:14 | <ben-nabiy> bad choice, I just created that user to test
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| 08:14 | <alkisg> That user cannot login because /home/bd doesn't exist
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| 08:14 | <ben-nabiy> let me do a different one
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| 08:14 | <alkisg> OK, another one then
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| 08:17 | ben-nabiy: I don't see any issues
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| 08:18 | The testy user logged in just fine
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| 08:18 | <ben-nabiy> hrm, very funny
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| 08:18 | just failed the next user
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| 08:18 | <alkisg> Let's do it the same way
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| 08:19 | ssh etc
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| 08:19 | Aren't you already logged in as bennabiy?
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| 08:20 | You shouldn't login twice with the same account in GUIs
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| 08:20 | <ben-nabiy> I am sshed in
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| 08:20 | and with x2go
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| 08:21 | bombed
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| 08:22 | <alkisg> Try with an account that is not logged in already
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| 08:23 | <ben-nabiy> failed
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| 08:27 | interesting
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| 08:30 | <alkisg> Again I don't see any issues...
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| 08:30 | bbiab
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| 08:30 | <ben-nabiy> ok
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| 08:32 | what is causing default to not work?
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| 08:32 | <alkisg> What is not working? The default session? Is that openbox?
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| 08:33 | <ben-nabiy> It should be MATE
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| 08:33 | but that must be what is happening
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| 08:33 | <alkisg> Try selecting openbox and see if it fails
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| 08:33 | <ben-nabiy> default not pointing to anything?
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| 08:33 | ok
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| 08:34 | it booted, but had nothing more than openbox
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| 08:35 | we accidentally added it when trying to configure something
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| 08:35 | so if we remove openbox, it should default back to MATE?
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| 08:35 | <alkisg> Try removing it and re-running ltsp-update-image
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| 08:35 | Sounds reasonable...
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| 14:37 | <sbalneav> Morning all
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| 14:38 | alkisg: Got that daemon?
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| 15:45 | <steves_ksc> Good morning. I'm a long-time LTSP administrator trying to get up and running with LTSP-PnP using fat-clients. We are using Ubuntu MATE 16.04 and have everything working, except the fat-client lock screen. When the screen locks, the password (which has been verified as correct) will not unlock it. I found a procedure that talks about disabling the lock screen, but our company policies require the screen to be locked after a period of
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| 15:45 | Is there a fix for this, or am I just SOL.
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| 15:52 | <quinox> there is
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| 15:53 | let me find it...
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| 15:54 | 2015-07-05 02:16:09 vagrantc there's a feature in recent versions of LDM where you can set LDM_HASH_PASSWORD=true in lts.conf to store a local copy
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| 15:54 | 2015-07-05 02:16:41 vagrantc so screen lockers can work again ... but changing the password still needs to be done on the server
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| 15:55 | correction: it's LDM_PASSWORD_HASH
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| 15:56 | see man lts.conf:
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| 15:56 | LDM_PASSWORD_HASH
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| 15:56 | boolean, default False
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| 15:56 | When set to True, this will create a proper shadow entry on the
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| 15:56 | client, allowing for screen locking, and other things which require
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| 15:56 | authentication to work. Note, this allows you to change your
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| 15:56 | password locally, or possibly other actions such as sudo, but these
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| 15:56 | changes are only temporary and will not persist on reboot.
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| 15:56 | versions: LDM 2.2.14+, LTSP 5.5.2+
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| 15:57 | we use a different way ourselves: Since our auth is done by LDAP anyway we configure the fat clients to use the same LDAP server for authentication
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| 15:57 | with the advantage that password changes are reflected right away
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| 15:58 | <steves_ksc> Ok thank you very much. I will give that a try.
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| 16:06 | <quinox> note to self: don't use "we", use "I"
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| 16:08 | <steve_ksc> Worked like a champ! Thank you!
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| 16:09 | <quinox> hooray
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| 16:09 | <vsuojanen> does it make sense in such case to instruct users to ssh to 'server' and then issue passwd change... or include such functionality in users desktop
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| 17:44 | <JerryT> What's the easiest/lightest Window manager that works with ltsp-pnp?
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| 17:46 | * ogra_ would guess wm2 | |
| 17:47 | <ogra_> (just because i dont know a lighter one :) )
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| 18:01 | <||cw> I think the only ones that don't work with ltsp are the ones that require 3D, and even those work on thick clients
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| 18:01 | er, fat client
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| 18:13 | <sbalneav> evilwm
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| 18:13 | one pixel boarder around all windows, and *that's it*.
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| 18:14 | Man, I should go back to using it.
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| 18:15 | * quinox is quite happy with awesome wm on a triple head setup | |
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| 18:26 | <Sleaker> ||cw: it's kind of limiting since most of the default DMs require 3d now.
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| 18:40 | <quinox> with quite a few you can disable compositing, it's just on by default
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| 19:08 | <lucascastro> how can I debug "ldm|X" initialization on thin client, I don't why it's not getting up. nothing on screen, just a line blinking.
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| 19:09 | If I set the screen to initialize a xfreerdp I get a message "unable to connect to X: connection refused"
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| 19:31 | <||cw> lucascastro: set it up to only start a console, then try startx and see if you get errors
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| 19:33 | <lucascastro> ||cw: ok
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| 19:36 | ||cw, open an console with cursor
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| 19:36 | I think it's xterm.
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| 19:42 | <lucascastro> if I just exec xinit ldm, ldm open up. But login doesn't work
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| 19:46 | <||cw> then I don't follow the issue. a sole blinking cursor on boot means X isn't starting, which means either you messed up the lts.conf or messed up your x config or drivers
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| 19:47 | or your hardware isn't supported on the default kernels
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| 19:49 | <lucascastro> I'm testing ltsp with banana pi.
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| 19:50 | if I run "xinit /etc/X11/xinit/xinitrc /usr/sbin/ldm -- :8 vt08
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| 19:51 | ldm open up, but when I try to login I get the message "xinit: connection to X Server Lost"
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| 20:01 | <||cw> are you using one of the raspberry pi guides?
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| 20:05 | <lucascastro> no, I've already get it working with raspberry pi
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| 20:06 | but the difference about raspberry pi, it's the rpi needed a different kernel.
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| 20:06 | s/needed/needs/
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| 20:08 | <||cw> yeah, kernel and X modules. that's about it
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| 20:09 | <lucascastro> but If I run the command by myself just works, I building and client chroot with raspbian right now, just for test .
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| 20:10 | What I've read about rpi is because it needs a blob for initialization, that's why the kernel
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| 21:39 | <JerryT> Installed LTSP on Ubuntu Mate. After login it loops back to the login page again.
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| 21:39 | Never actually brings up the Mate desktop.
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| 21:52 | Nevermind, got it
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| 21:52 | In ldm, had to set the Session type to Mate
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