IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 10 March 2012 (all times are UTC)
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| 12:11 | <srdjo> alkisg, I think there is a bug on 11.10 (dont know if it was fixed) with screen lock password on FAT clients
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| 12:12 | when screen locks (screensaver) it wont accept correct password, so users must restart clients in order to boot
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| 12:20 | <alkisg> The user passwords are not transferred to fat clients for security reasons, that's why they can't authenticate
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| 12:21 | You need to disable screen locking until a better method is found
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| 12:21 | <muppis> I wonder could ldap to the trick?
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| 12:21 | <alkisg> ldap is a bit difficult to configure, so sbalneav is trying to implement libpam_ssh for ssh-based pam-enabled authentication
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| 12:22 | <muppis> Difficult, but possible?
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| 12:23 | <alkisg> Sure, but I think it's outside the scope of ltsp
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| 12:23 | Not all people would want to switch to ldap
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| 12:23 | <muppis> Maybe.
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| 12:23 | Well, that's true.
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| 12:23 | <alkisg> Once freeipa or whatever else takes over the world, and everyone uses ldap, then sure, ltsp can reuse that
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| 14:06 | <srdjo> alkisg, is there a way to exit frozen vnc session (from epoptes) without restarting ltsp server ?
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| 14:06 | <alkisg> srdjo: what do you mean frozen session?
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| 14:07 | Are you running epoptes from the ltsp server?
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| 14:07 | <srdjo> yes I am
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| 14:07 | <alkisg> And your session froze?
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| 14:08 | Or the client session froze?
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| 14:08 | <srdjo> I can move the mouse, but I cant click anything in the client nor in the server
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| 14:09 | <alkisg> But I don't understand why vnc is related to that
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| 14:09 | VNC isn't running on the server, is it?
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| 14:10 | Press alt+ctrl+f1 on the server, login, run ps aux > ~/psaux, and then kill whatever you want
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| 14:10 | If you think it was related to epoptes (don't see how it would), keep the psaux file to help troubleshooting
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| 14:11 | <srdjo> vnc client has the keyboard - server wont recognize the key press nor the mouse
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| 14:13 | <alkisg> It's just hanged, try ssh'ing to it
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| 14:13 | It's not related to epoptes
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| 14:13 | <srdjo> ill try to "kill" myself from other terminal :)
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| 14:15 | i started client vnc control from epoptes so i thought there is a way to end it from there also
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| 14:16 | <alkisg> I don't understand you, if you started vnc control of the client why was the server hanged without vnc running?
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| 14:21 | <srdjo> i started epoptes on the ltsp server, selected client, clicked control, and controlled the client for some time and when I tried to minimize the client window, it did not react to mouse clicks neither in client nor on the ltsp server. So I asked if there was some built-in key combination (like alt + F4) to tell the client to release mouse so I can use it on the server.
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| 14:25 | <alkisg> The vnc client can't capture the server mouse, your server just hanged
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| 14:35 | <srdjo> killing the xvnc viewer process got me my mouse back :)
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| 16:45 | <Llama_be> on Gentoo, I have got it working where it pxe boots the kernel. However it complains it cannot mount the nfs root fs, while I can mount it from another box. Error is: "Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,255)"
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| 16:53 | I notice there's no CONFIG_ROOT_NFS in my kernel .config. is it obsolete?
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| 17:02 | ok, solved this, had APPEND initrd=path_to_initrd in pxelinux.cfg/default, should have been INITRD path_to_initrd
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| 17:23 | * Hyperbyte high fives Llama_be | |
| 17:25 | <Llama_be> my client now boots, but seems to ignore my lts.conf. I want it to start rdesktop, and instead it shows an LTSP login screen
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| 18:11 | <Hyperbyte> Llama_be, pastebin your lts.conf
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| 18:11 | I don't know how you'd expect us to help you without that information. :-)
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| 18:17 | <Llama_be> my lts.conf is simply this: http://pastebin.com/X1Y4uxru
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| 18:18 | but I have the impression it's not even loading the lts.conf, but I can't view everything that the boot process says, because it goes by too quick
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| 18:23 | is there an easy way to make the boot process stop before any graphical things are being started?
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| 18:23 | <alkisg> Llama_be: init=/bin/bash
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| 18:24 | How old is your ltsp version?
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| 18:26 | <Llama_be> alkisg: it's a gentoo that has been installed 2 weeks ago, but hadn't had the time to finish it at that time...
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| 18:27 | <alkisg> Llama_be: I don't know what ltsp version a 2 weeks old gentoo has
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| 18:27 | <alkisg> What is your client command line? append=what?
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| 18:27 | *kernel
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| 18:27 | And, ltsp 5.2? 5.2.3?
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| 18:28 | <Llama_be> 5.2.18, is that possible?
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| 18:29 | APPEND root=/dev/nfs nfsroot=192.168.50.22:/opt/ltsp/x86 init=/bin/bash
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| 18:29 | (but I've just added the init=/bin/bash)
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| 18:31 | <alkisg> Sure, it's possible, I was asking in case you had something extremely new that supports break=certain scripts
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| 18:32 | Now, I assume that gentoo has code in the initramfs that gets lts.conf
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| 18:32 | <alkisg> So from init=/bin/bash, you'll be able to run getltscfg -a and see if you got the correct lts.conf
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| 18:33 | <Llama_be> and that does not really help anything, the init=/bin/bash. And I'm definately seeing some error before ldm loads, it's just too quick for me to determine what it is...
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| 18:33 | <alkisg> init=/bin/bash is supposed to stop the system right after the initramfs
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| 18:33 | So if that's not functioning, maybe you're not editing the correct file?
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| 18:34 | <Llama_be> it's the pxelinux.cfg/default file I put that in. and if I mess up the nfsroot= directive, it does fail (as expected), so I believe I am changing the correct file...
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| 18:36 | <alkisg> Maybe Gentoo has some other syntax for init= then, dunno
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| 18:36 | Another thing you could do, in Ubuntu at least, not sure if it's supported in Ubuntu, would be:
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| 18:36 | [Default]
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| 18:36 | SCREEN_02=shell
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| 18:36 | That would give you a text mode shell instead of xfreerdp
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| 18:37 | *supported in Gentoo I meant
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| 18:42 | <Llama_be> I believe it should be supported yes, but doesn't work, but that could ofcourse also mean that my hypothesis of it not loading lts.conf is correct
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| 18:42 | <alkisg> Your lts.conf is in /opt/ltsp/x86/etc/lts.conf ?
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| 18:44 | <Llama_be> I thought it had to be in tftpboot/x86/ ? But I had also already tried the location you said, and that didn't work either (retrying now though )
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| 18:45 | <alkisg> In general, when nbd is used, lts.conf is fetched from tftp,
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| 18:45 | while when nfs is used , lts.conf is directly read from the chroot
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| 18:45 | No idea what Gentoo does, but it should at least default to the lts.conf in the chroot
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| 18:52 | <Llama_be> ok, i made an error with the lts.conf in the chroot, which I now fixed. Now I saw that it launched a root shell, but it immediatly dissapeared and now presents me with a login prompt (but textual, no ldm anymore)
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| 18:53 | and unfortunately shift-page up does not work, to go up and see what the problem is...
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| 18:53 | <alkisg> Alt+Ctrl+F2 doesn't give you a console without a prompt?
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| 18:54 | Also, what are you trying to run? ldm OR xfreedrp?
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| 18:55 | LDM is the display manager for LTSP, xfreerdp is a program to connect to windows servers
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| 18:55 | <Llama_be> I want to run xfreerdp, but the problem was that it was always starting ldm
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| 18:56 | and no, alt+ctrl+f2 does not give me my shell :-s
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| 18:56 | <alkisg> Can you login at that login prompt? Do you have the root account unlocked?
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| 18:59 | <Llama_be> hmm, apparently, when I press enter, I enter into the shell (without logging in) and a couple of seconds later it respawns the login propmt
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| 19:07 | <alkisg> Llama_be: do you have that file? /opt/ltsp/x86/usr/share/ltsp/screen.d/xterm
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| 19:08 | <Llama_be> yes
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| 19:09 | <alkisg> Try
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| 19:09 | [Default]
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| 19:09 | SCREEN_07=xterm
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| 19:09 | If you get an xterm with that, try running xfreedrp from there
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| 19:11 | <Llama_be> yes, that works...
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| 19:12 | <alkisg> Once you find the correct xfreerdp command line, put it in lts.conf, all of it
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| 19:18 | <Llama_be> and then it stops working :( but I kinda have to go now. I will try to fix it later, maybe discuss with knipwim|vacation, when he's back from vacation, as he is familiar with ltsp on gentoo
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| 19:19 | <alkisg> Maybe you're missing the xfreerdp screen script
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| 19:19 | <Llama_be> no, it is present in the screen.d directory
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| 19:20 | thanks for the help already! I will play with it later to see if I can find the problem.
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| 19:21 | <alkisg> bb
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| 23:14 | <modris> hi, in general i'm win sysadmin one on board with sbs2008 and 70users.
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| 23:15 | for now i seek solution for virtual desktop solution
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| 23:15 | <alkisg> Windows desktop?
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| 23:16 | <modris> vmware, citrix is not cheap, but work...
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| 23:16 | yes for now only win desktops and ms office suite for mostly
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| 23:17 | in future i can change some user to openoffice, maybe on opensuse too
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| 23:18 | first ooo or libre, then opensuse. is ltsp the way that You suggest try for tests?
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| 23:18 | <alkisg> LTSP supports xfreerdp or rdesktop to windows servers, and with a bit of hacking you can also have the clients boot to a minimal linux + virtualbox/vmware => windows VMs on top of it
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| 23:22 | <modris> alkisg: thnk. but in this solution pros from ltsp for me will be that client side may be thin client and i dont take care of it, but for workstation configuration i must work with all image individually or mass cloning. correct?
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| 23:23 | <alkisg> No
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| 23:23 | In both cases you only need a single image and no cloning
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| 23:23 | <modris> there is no standart image management, connection broker (or similar name) with AD
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| 23:24 | <alkisg> In ltsp the clients don't need to have disks, and usually we only have a single image for any number of clients
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| 23:25 | <modris> possible i miss something, i already take fast read http://dfn.dl.sourceforge.net/project/ltsp/Docs-Admin-Guide/LTSPManual.pdf can You suggest other reading material or i just need make test lab and that is the way how hurry get vision about ltsp?!
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| 23:26 | <vagrantc> i like learning by doing, if you can make a test lab environment
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| 23:27 | <modris> one image for all clients, but how about specific soft for specific users? is this ok or one image is that what get all?
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| 23:28 | <vagrantc> typically, software is managed on the server.
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| 23:28 | <modris> test environment = nice, but time is ticking away. because i'm take some dig there. and thank for you helping
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| 23:28 | <vagrantc> the thin clients connect to the server ... it's like an extra monitor/keyboard/mouse for the server, sort of.
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| 23:29 | a test environment can just be two computers, one with two network cards: one plugged into the main network, the other plugged into a hub/switch that the thin client is plugged into.
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| 23:29 | <modris> ok think i got, all connected users work in one working OS, like multiplayer, is this correct?
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| 23:30 | and there no one virtual pc for each user?
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| 23:30 | and there are no one virtual pc for each user?
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| 23:30 | <vagrantc> they all log into the server, and run applications there. that's the typical thin client model. there are other more complicated options, but understanding that first is important.
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| 23:31 | <vagrantc> modris: that's possible, but a much more complicated setup- i wouldn't recommend it to learn LTSP.
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| 23:32 | <modris> vagrantc: thank, think/hope i got ltsp difference from wmvare
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| 23:32 | because for now i know only information about enterprise solution posible my Q for You think dumb...
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| 23:33 | <modris> THank All for help, try one small test env and then will be back if need!
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| 23:33 | <vagrantc> good luck!
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| 23:36 | mikkel has left IRC (mikkel!~mikkel@80-71-132-15.u.parknet.dk, Quit: Leaving) | |