IRC chat logs for #ltsp on irc.freenode.net (webchat)


Channel log from 6 April 2017   (all times are UTC)

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07:45
<Nick2017>
Καήμερα ήθελα να κάνω 2-3
07:45
ερωτήσεις για UBUNTU LTSP
08:05
<alkisg>
Nick2017: καλημέρα
08:06
Αυτό είναι το αγγλικό κανάλι
08:06
Γράψε αυτό για να έρθεις στο ελληνικό: /join #ts.sch.gr
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12:42
<professor^profes>
hello
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17:26
<facilitador>
help
17:27
i can't see two users
17:28
exit
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17:35
<xxstormxx>
hi everyone
17:35
anybody willing to help a bit i am kind of lost over here
17:36
<alkisg>
xxstormxx: hi
17:36
Where do you need help?
17:36
<xxstormxx>
well, first, thanks for answering
17:36
i have set up an LTSP server on a virtualbox host
17:36
i have built the image
17:37
no problems
17:37
Using LXDE as GUI
17:37
<alkisg>
Which distro/version?
17:37
<xxstormxx>
16.04
17:37
<alkisg>
ok
17:38
<xxstormxx>
the client boots up and seems to work.. but it quite simply hangs at boot and the image is broken
17:38
the login screen display is like doubled with violet shades and so on
17:38
and it hangs
17:39
i am using arch linux as O/S on my PC
17:40
<alkisg>
!lts.conf
17:40
<ltsp>
lts.conf: (#1) http://manpages.ubuntu.com/lts.conf, or (#2) lts.conf manpage is available in the ltsp-docs package
17:40
<alkisg>
sudo nano /var/lib/tftpboot/ltsp/i386/lts.conf
17:40
[Default]
17:40
X_SMART_COLOR_DEPTH=False
17:40
Try this ^
17:40
It might be a kernel issue with 16 bit color depth
17:41
<xxstormxx>
do you have a moment? i will try right away
17:42
i have to update the image as well right? ltsp-update-image
17:42
<alkisg>
No, just reboot client
17:43
<xxstormxx>
okay rebooting
17:44
same issue
17:44
one moment i will show you
17:44
<alkisg>
Is the client a VM too?
17:44
<xxstormxx>
https://ibb.co/n7rObF
17:44
yes
17:45
<alkisg>
Put your lts.conf to pastebin
17:45
It seems like your client doesn't get the lts.conf settings
17:45
<xxstormxx>
which one? the same you gave me?
17:45
i mean the same file you have addressed me previously?
17:46
<alkisg>
cat /var/lib/tftpboot/ltsp/i386/lts.conf
17:46
The output of that
17:46
See this image: https://launchpadlibrarian.net/311563710/VirtualBox_Thin_20_03_2017_10_32_51.png
17:46
<xxstormxx>
i have used amd64 as arch
17:46
<alkisg>
And this bug report: https://bugs.freedesktop.org/show_bug.cgi?id=100295
17:47
I think that's the issue you're having, I reported it and they solved it already (in the modesetting driver)
17:47
And that now your client just doesn't read the lts.conf
17:47
So paste your lts.conf, it might have a syntax error somewhere
17:47
!screen_02
17:47
<ltsp>
screen_02: To get a root shell on an Ubuntu thin client: https://help.ubuntu.com/community/UbuntuLTSP/ClientTroubleshooting#Using_a_shell_SCREEN
17:48
<alkisg>
Or get a root shell on the client and try `getltscfg -a` to verify it
17:49
<xxstormxx>
okay i will do it right away
17:49
thanks mate
17:49
stand by please
17:49
<alkisg>
xxstormxx: try this in that file:
17:49
[Default]
17:49
SCREEN_07=shell
17:49
So, if the client reads lts.conf, you will only get a shell with no xorg at all
17:49
If you get the corrupted screen, then I'm right in that it doesn't read your lts.conf
17:50
<xxstormxx>
resetting
17:50
a moment
17:51
okay there is a console but it's frozen
17:51
started update UTMP about system runlevel changes
17:51
<alkisg>
So so got no xorg now?
17:51
<xxstormxx>
that's where it hangs
17:51
you are correct
17:52
no xorg
17:52
<alkisg>
OK then it's a different issue from what I was saying
17:52
<xxstormxx>
okay
17:52
<alkisg>
Can I see?
17:52
!vnc-dide
17:52
<ltsp>
vnc-dide: To share your screen with me, run this: sudo apt-get --yes install x11vnc; x11vnc -connect srv1-dide.ioa.sch.gr - this is a reverse connection, it doesn't need port forwarding etc.
17:52
<alkisg>
Can you do that on your arch?
17:52
(it sounds like a weird one, that's why it would take less time with vnc..)
17:53
Or, on your ltsp server vm
17:53
<xxstormxx>
sure
17:53
that i can do
17:53
<alkisg>
But that way I won't see the client screen, it'll be a bit worse
17:53
<xxstormxx>
but i am behind like 2 firewalls one of which i have no access
17:54
<alkisg>
Try it and if it works, ok :)
17:54
If it doesn't, we'll think of something else
17:55
Btw, do you know about the ltsp-pnp method?
17:55
!ltsp-pnp
17:55
<ltsp>
ltsp-pnp: ltsp-pnp is an alternative (upstream) method to maintain LTSP installations for thin and fat clients that doesn't involve chroots: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
17:56
<xxstormxx>
cool
17:57
thanks mate
17:57
<alkisg>
xxstormxx: yeah you had just misttyped the X_SMART_COLOR_DEPTH
17:57
<xxstormxx>
that was it???
17:57
<alkisg>
xxstormxx: but, I propose to use ltsp-pnp instead
17:57
(unless you have a reason not to)
17:57
<xxstormxx>
@alkisg why ltsp-pnp
17:57
how do i PM you?
17:58
xD
17:58
<alkisg>
How many clients are you planning to have, and what CPU/RAM will they have?
17:58
(I sent you a PM, you should see it in some other tab)
17:59
<xxstormxx>
up to 5 thinclients
17:59
<alkisg>
What CPU/RAM?
17:59
<xxstormxx>
mmm unknown at the moment
17:59
<alkisg>
New clients?
17:59
Then just buy fat clients and use ltsp-pnp
17:59
<xxstormxx>
most definitely not
17:59
they might be 4 or 5 years old
17:59
<alkisg>
That's fine too
18:00
<xxstormxx>
i guess so as well
18:00
<alkisg>
Anything with 1 GB RAM should be booted as a fat client :)
18:00
Are you going to do browsing etc on them?
18:00
<xxstormxx>
i have seen them working with multipoint 2011
18:00
tell me, why ltsp-pnp ?
18:00
<alkisg>
First, why fat clients:
18:00
!fatclients
18:00
<ltsp>
fatclients: Nowadays LTSP supports thin and fat clients. They are both diskless and netbooted from the same LTSP chroot, but while thin clients run the session on the server and transfer the screen, fat clients run the session locally with their own CPU/RAM, thus performing amazingly better. See also !ltsp-pnp and https://help.ubuntu.com/community/UbuntuLTSP/FatClients
18:00
<alkisg>
!thin-clients-bandwidth
18:00
<ltsp>
thin-clients-bandwidth: A small explanation why thin clients can't perform well with video, lots of screen updates etc: https://sourceforge.net/p/ltsp/mailman/message/35694699/
18:00
<alkisg>
And once you read those, here's why ltsp-pnp:
18:00
!ltsp-pnp
18:00
<ltsp>
ltsp-pnp: ltsp-pnp is an alternative (upstream) method to maintain LTSP installations for thin and fat clients that doesn't involve chroots: https://help.ubuntu.com/community/UbuntuLTSP/ltsp-pnp
18:01
<alkisg>
(I wrote all those 3 links, so just read them :))
18:01
<xxstormxx>
i will do some RTFM thanks :)
18:02
well, they just need to browse the internet and print...
18:02
they don't have to do much with them
18:03
<alkisg>
Browsing the internet nowadays is the hardest thing a pc needs to do :)
18:03
<xxstormxx>
lol... i thought it was gaming..
18:03
<alkisg>
It usually involves > 1 GB RAM usage and 50% CPU etc
18:04
Gaming in linux? nah...
18:04
<xxstormxx>
well, the actual situation they have is a really fat dell server with Windows multipoint 2011
18:04
and 5 wise thin clients
18:04
if the multipoint could run them smoothly... i don't see why LTSP wouldn't
18:05
<alkisg>
Sure, install ltsp-pnp and if you want thin clients, just set LTSP_FATCLIENT=False in lts.conf
18:05
LTSP doesn't have remote_fx
18:05
Read the second link
18:05
(09:00:40 μμ) ltsp: thin-clients-bandwidth: A small explanation why thin clients can't perform well with video, lots of screen updates etc: https://sourceforge.net/p/ltsp/mailman/message/35694699/
18:06
It does have fat client support though, which is a lot better
18:07
<xxstormxx>
okay i see that
18:07
ah another question
18:07
how do they manage the network?
18:07
i mean
18:07
i am behind a captive portal
18:07
does the thin client has its own mac and IP?
18:08
and it authenticates against the CP with them or does it do that with the LTSP server Ip address?
18:08
<alkisg>
Fat clients yes, thin clients no
18:08
Thin client sessions are on the server
18:09
Like logging in with multiple users on the same server
18:09
So whatever the clients do from there, will have the same mac/ip as the server
18:09
<xxstormxx>
i understand
18:09
fat clients instead won't do that
18:09
<alkisg>
Right
18:10* alkisg needs to go now, later...
18:10
<alkisg>
Good luck!
18:10
<xxstormxx>
okay
18:10
thanks mate
18:10
<alkisg>
np
18:10
<xxstormxx>
peace
18:10
going as well
18:10
bye
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