IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 15 April 2015 (all times are UTC)
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| 02:45 | <Yeison> good evening
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| 02:52 | * vagrantc waves | |
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| 13:55 | <bennabiy> Hi alkisg :)
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| 14:13 | <work_alkisg> Hi bennabiy, everything ok?
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| 14:14 | <bennabiy> I tried with stock Ubuntu and lost video on it as well
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| 14:14 | <alkisg> Then it's an ubuntu issue, you should check on #ubuntu-x about that
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| 14:14 | (ubuntu, xorg, kernel, whatever)
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| 14:14 | non-ltsp though
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| 14:14 | <bennabiy> but I moved an image over from a different lab that was just running the original mint 17 and it at least got me a visible window, although it was 640x480
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| 14:15 | yes
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| 14:15 | I do not want to trouble you with what does not apply to LTSP ( as I know you are already busy enough )... I was just saying hi
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| 14:16 | It is frustrating that it is not working.. but that is my issue to deal with
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| 14:16 | <alkisg> As I wrote a few days back, I would suggest that you tried with stock ubuntu or debian or fedora, some of the main distributions, so that you know where to report it, be it upstream or distro-specific
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| 14:16 | Because if e.g. it's due to some older mint kernel, noone would care if mint doesn't update it
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| 14:28 | <bennabiy> alkisg : it is the same with upstream ubuntu 14.04
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| 14:28 | I tried on 14.04
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| 14:28 | <alkisg> Start chatting with people in #ubuntu-x, and try other/newer versions too
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| 14:28 | E.g. Ubuntu 15.04, fedora...
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| 14:28 | Debian...
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| 16:23 | <championofcyrodi> yesterday i added a new NUC to our ltsp clients. while running in my session things would be going 'fine', but then suddenly i would get a gnome ui popup asing for root@server's password with the window title 'ssh'
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| 16:23 | it looked as though my sshfs connection was being reset or something...
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| 16:23 | of course clicking cancel about 15 times makes it go away
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| 16:37 | <vagrantc> it shouldn't be logging in as the root user
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| 19:38 | <awei> I have ltsp-server 5.5.4 and ldm 2:2.215 on client. but still having trouble unlocking screen on fat client. i type password in and i just get the animated loading icon. any ideas?
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| 20:00 | <vagrantc> awei: locking on fat clients require some hackish workarounds
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| 20:01 | awei: set LDM_HASHPASS=true in lts.conf, which will generate a local password hash that lasts as long as the user is logged in.
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| 20:01 | <awei> vagrantc: i've made progress (like i can log in from tty1)
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| 20:01 | yup, got that part.
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| 20:01 | <vagrantc> awei: what have you configured?
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| 20:01 | <awei> so, i have ltsp-server 5.5.4 and ldm 2.2.15 on client, updated lts.conf
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| 20:02 | i can now log in via tty1 on fat client
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| 20:02 | <vagrantc> how are you able to log in via tty?
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| 20:02 | <awei> i dunno, it worked using non-root account
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| 20:02 | <vagrantc> that's not normally possible
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| 20:02 | <awei> i have /home mounted NFS, would that do anything?
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| 20:02 | <vagrantc> did you manually configure a user in the chroot?
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| 20:03 | <awei> nope.
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| 20:03 | i think it worked actually
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| 20:03 | <vagrantc> awei: you have LDM_HASHPASS=true in lts.conf?
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| 20:03 | <awei> let me try again... there's just a tremendous lag returning from locked screen.
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| 20:03 | vagrantc: yes, i have that in lts.conf LDM_HASHPASS=true
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| 20:03 | <vagrantc> logging in via tty should only work while the user is logged in via LDM, then.
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| 20:04 | <awei> yes, ok, it's working. nevermind... it's just laggy
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| 20:04 | <vagrantc> before login, after login, the tty login shouldn't work
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| 20:04 | * vagrantc sighs | |
| 20:04 | <vagrantc> :P
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| 20:04 | <awei> :)
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| 20:04 | is the lag due to network latency?
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| 20:04 | or just crappy processor
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| 20:05 | initial unlock of screen took ~3 mins. successive attempts are much faster.
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| 20:09 | <vagrantc> possibly crappy processor ...
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| 20:09 | <vagrantc> screensaver usually runs "nice" which can make it extra laggy under heavy load
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| 20:10 | but that sounds really bad.
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| 20:10 | not sure what would cause that
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| 20:10 | LDM_HASHPASS hasn't been around very long
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| 20:10 | <awei> vagrantc: ok, thanks for info... also, fyi, i had to use LDM_PASSWORD_HASH=true and not LDM_HAS_PASS
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| 20:10 | <vagrantc> though i think there are some fairly large installs using it
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| 20:11 | ah, fair enough
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| 20:11 | sorry for leading you astray
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| 20:11 | <awei> vagrantc: no problem. thanks again.
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| 20:12 | vagrantc: is there a way to prevent from writing /usr/share/glib-2.0/schemas/10_ltsp_schema.override on every boot?
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| 20:12 | i see that it's disabling lock screen
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| 20:15 | <vagrantc> awful.
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| 20:15 | no idea what does that
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| 20:16 | <awei> vagrantc: ok. thx.
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| 20:18 | <vagrantc> it actually writes to /usr/share/ ??
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| 20:19 | awei: what OS ?
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| 20:19 | <awei> i *believe* that it is echoing to the /usr/share/...10_ltsp_schema.override with the gnome disable lockout screen stuff
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| 20:19 | i'm on ubuntu 14.04.2
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| 20:19 | <vagrantc> nothing shoudln't be writing to /usr/ except dpkg unpacking packages...
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| 20:20 | <awei> i've mounted my fat fat chroot as rw and i can see that the more i log in the more lines are being written to this file
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| 20:20 | <vagrantc> nothing *should* be writing to /usr
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| 20:20 | <awei> want me to write up a bug?
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| 20:20 | <vagrantc> sure
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| 20:20 | <awei> (to give back for all the help i received)
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| 20:21 | <vagrantc> i mean, disabling screen locking on environments where (historically) screen locking just locked the user out makes some sense
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| 20:21 | but writing to a file in /usr seems like there's got to be some other way of accomplishing that ...
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| 20:22 | <awei> i dont' *know* if that's what is exactly happening, it's just a hunch
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| 20:22 | just because i can see the file growing
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| 20:22 | <vagrantc> does any package own the file?
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| 20:23 | dpkg -S ltsp_schema
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| 20:23 | <awei> on fat client?
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| 20:23 | <vagrantc> anywhere
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| 20:23 | <awei> lemme try...
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| 20:24 | <vagrantc> either from a booted fat client, or in the fat client chroot (or on the server if it's an ltsp-pnp style image)
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| 20:24 | <awei> "dpkg-query: no path found matching pattern *10_ltsp.gschema.override*"
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| 20:27 | <vagrantc> you might be overly specify
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| 20:27 | try "dpkg -S ltsp_schema
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| 20:27 | "
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| 20:27 | a file that generates that might be named something else entirely
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| 20:27 | <awei> lemme try again...
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| 20:28 | <vagrantc> unnless the filename isn't what you've said
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| 20:28 | could also try "locate ltsp.gschema" on the server
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| 20:29 | but the file that generates it could be named anything
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| 20:29 | might want to look around in /etc/X11/Xsession.d/ too
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| 20:29 | <awei> ok, i'll try to track it down.
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| 20:48 | <alkisg_android> awei, check /usr/share/ltsp/init-ltsp.d
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| 20:48 | <awei> looking...
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| 20:48 | <alkisg_android> it does that dynamically on boot
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| 20:49 | <vagrantc> ah, it doesn't write it directly, it must call some script
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| 20:49 | <alkisg_android> you can delete the script with INIT_COMMAND_01="rm /usr/..."
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| 20:50 | <vagrantc> how did i miss that one
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| 20:50 | <awei> i found it
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| 20:50 | it's in 50-gsettings-overrides
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| 20:50 | <vagrantc> ah, i was given the wrong filename to search :P
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| 20:51 | <alkisg_android> sorry small keyboard can't type much :)
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| 20:51 | <vagrantc> that should really be optional.
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| 20:51 | <awei> sorry, i was referring to the generated file
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| 20:51 | <vagrantc> and certainly when LDM_PASSWORD_HASH is true
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| 20:51 | <alkisg_android> previously there was no way to unlock
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| 20:52 | now sure it can be disabled when hash pass is true
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| 20:52 | * vagrantc nods | |
| 20:52 | <awei> still want me to file a bug?
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| 20:52 | i'll just log it...
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| 20:52 | <vagrantc> file a bug, sure
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| 20:53 | <vagrantc> we also don't have a way to disable init-ltsp.d scripts :(
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| 20:53 | which would be more complicated code, but would allow admins to override things like this easily
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| 20:54 | <alkisg_android> a space separated list would be easy to implement globally on sbin/init-ltsp
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| 20:55 | <vagrantc> + ! boolean_is_true "$LDM_PASSWORD_HASH" &&
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| 20:55 | rather than layered override files?
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| 20:56 | * vagrantc always gets confused with negation checks against booleans | |
| 20:56 | <alkisg_android> i think i have such a don't-include list in cleanup.d
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| 20:56 | <awei> ok, logged #1444693 fyi...
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| 20:57 | <vagrantc> pretty similar to https://bugs.launchpad.net/ltsp/+bug/1316320
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| 21:00 | if they've got LDAP or some other authentication enabled, checking LDM_PASSWORD_HASH isn't enough
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| 21:00 | but it should definitely be disabled when LDM_PASSWORD_HASH=true
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| 21:01 | though the unrelated switch_user functionality should possibly stay
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| 21:03 | <alkisg_android> user switching ends with lock screen
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| 21:04 | and it's implemented with accountsservice, which ltsp breaks
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| 21:04 | so it's broken in 2 places...
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| 21:06 | <vagrantc> isn't there a user-switcher also accessible from drop-down menus as well?
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| 21:06 | or that's different entirely?
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| 21:08 | <alkisg_android> normally menus are only shown if policy allows it
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| 21:08 | hidden otherwise
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| 21:09 | the menu that you say though doesn't work at all without lightdm in ubuntu
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| 21:10 | <vagrantc> or gdm3 in debian...
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| 21:10 | at least, it used to
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| 21:11 | been some years since i've tried
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| 21:16 | * alkisg_android waves | |
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