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


Channel log from 8 January 2012   (all times are UTC)

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01:17
<markit>
I turn off the client, but "who" says is till logged
01:17
ok, 2.20am here, time for sleep
01:17
see you tomorrow
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11:14
<markit>
I'm testing fat client. If I exti/poweroff a client, issuing "who" in the server still shows that user
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11:37
<markit>
mmm seems that is really slow in accessing home directory, any idea?
11:45
maybe going with NFS home solves, let's hope so
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12:12
<fossala>
How can I find out what driver a thin client is using?
12:17
<markit>
fossala: probably you have to enable root for thin, log in console and do some sort of lsmod
12:19
<fossala>
Yeah did lspci -k.
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12:19
<fossala>
Thanks.
12:20
I cannot work out why I cannot get compositing with KDE.
12:22
<markit>
fossala: you using kde? me too! we are so few...
12:22
fossala: are you using fat clients by chance?
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12:26
<fossala>
No, 3 thin clients. 1ghz with 1gb ram.
12:26
Server is quad 2.6ghz with 16gb ram.
12:26
Runs very fast on a gigabit network.
12:31
<markit>
so probably your vga is too old to support composition
12:31
in any case, it makes things go much slower, I disable it by default
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18:18
<markit>
hi alkisg, do you have some time to help me troubleshooting this terribly slow fat?
18:18
<alkisg>
Hi markit, client specs?
18:18
<markit>
well, is a 2GB, 2Ghz, dual core laptop
18:18
is just for test
18:18
<alkisg>
OK, gigabit local network or 100mbps?
18:18
<markit>
the server is a virtual machine on a i7
18:19
server gb, switch gb, laptop 100
18:19
<alkisg>
So 100
18:19
<markit>
but let me explain
18:19
it seems to go very fine until I login
18:19
then KDE is slow like hell
18:19
<alkisg>
And are you using sshfs or NFS?
18:19
<markit>
and if then open LibreOffice is fast
18:19
if I run dolphin, hopening home is slow like hell
18:19
I've started with sshfs and then tried to use nfs
18:20
thinking was a issue that would have been fixed
18:20
I've no idea if is really using nfs or not
18:20
<alkisg>
On the client, run mount | grep home
18:20
<markit>
in any case, nothing changed, it takes 3 minutes to be "usable"
18:20
ok
18:21
home type nfs
18:21
btw, fat client installation is US, don't know why did not took the server (italian) settings, is it normal?
18:22
<alkisg>
Which ubuntu version?
18:23
If the server has italian settings in its /etc/default/locale, then yes the chroot should also default to italian
18:24
Did you have any other fat client installations with KDE, where KDE was fast? Or is it a general problem with KDE on NFS/SSHFS /home?
18:24
<markit>
first time I try fat setup
18:24
kubuntu 11.04
18:25
(natty)
18:25
<alkisg>
Try cat /opt/ltsp/fat-i386/etc/default/locale
18:25
And compare that to your server's
18:25
<markit>
they are the same except ""
18:26
server: LANG="it_IT.UTF-8" chroot LANG=it_IT.UTF-8
18:26
maybe language packages are missing?
18:26
I've tired with a netbook as fat client, but same result
18:27
<alkisg>
markit: try with LDM_LANGUAGE=it_IT.UTF-8
18:27
in your lts.conf
18:29
<markit>
ok, I reboot the client, but will take 4 minutes
18:29
<alkisg>
(08:19:32 μμ) markit: and if then open LibreOffice is fast ==> does openoffice, firefox etc *start* fast? I'm asking about the first time you launch them, does it take e.g. 20 seconds or 5 seconds?
18:30
(08:29:46 μμ) markit: ok, I reboot the client, but will take 4 minutes => Woww.... how much does it take to reach the LDM login screen?
18:30
Mine need about 13 seconds
18:30
<markit>
to reach ldm login, takes 13 seconds
18:30
to logoff 1 minute
18:31
and to login in kde and see if is language ok, 3 minutes
18:31
kdm settings are "language italian, available languages US"
18:31
so I think that is set ok, but lacking all the i18n packages
18:31
I'll have a look in chroot
18:31
<alkisg>
KDM? You're not using KDM for the clients, right?
18:32
After you login, just open a konsole and run `echo $LANG`,
18:32
<markit>
sorry KDE
18:32
yes, KDM
18:32
<alkisg>
and if it's wrong, put it to italian and launch kate from there
18:32
For fat clients you should be using LDM, the LTSP display manager
18:33
<markit>
yep, I use LDM
18:33
it has the "ubuntu logo"
18:33
at least, I think this is what you mean, I login with the same stuff it shows with thin clients
18:34
<alkisg>
Yes
18:34
By the way, if you set LTSP_FATCLIENT=False in lts.conf, so that you're using thin clients, do they run fast?
18:35
<markit>
chroot has NO l10n italian package
18:35
yep, as thin it runs fast
18:39
<alkisg>
markit: also check that your dns server/settings are correct
18:39
<markit>
let me install missing packages and rebuild the image
18:39
define "correct" :)
18:39
I can dig from server
18:39
<alkisg>
From fat clients?
18:39
<markit>
also client is able to navigate
18:39
<alkisg>
And reverse lookups?
18:39
<markit>
let me try again
18:41
dig -x 192.168.20.108 returns ltsp108
18:41
the only thing that is not "perfect" is that server has hostname, not FQDN
18:41
I mean, hostname -f returns "gnuserver" only
18:42
<alkisg>
It sounds ok...
18:42
<markit>
I've not added a specific entry in /etc/hosts with FQDN (maybe one day you will clarify me all this stuff)
18:42
<alkisg>
I would try this:
18:42
When at ldm, login to screen_02=shell
18:42
So that you get a root shell on the client while not user is logged in
18:42
Then, I'd do something like:
18:43
<markit>
mmm rekonq navigation (is a browser) seems not that fast, to be sincere
18:43
<alkisg>
mkdir /localhome
18:43
rsync -a /home/username /localhome/
18:43
(i.e. copy the user dir locally)
18:43
umount /home
18:43
rmdir /home
18:43
mv /localhome /home
18:43
This way you get a user home in tmpfs
18:44
So no nfs/sshfs is involved
18:44
If KDE runs fast this way, then those are to blame
18:44
(or KDE)
18:44
<markit>
ok, to use shell do I have to add some line in lts.conf, or I recall wrongly? I've TONS of notes, but hard do recover
18:45
<alkisg>
!screen_02
18:45
<ltsp`>
alkisg: screen_02: To get a root shell on an Ubuntu thin client: https://help.ubuntu.com/community/UbuntuLTSP/ClientTroubleshooting#Using_a_shell_SCREEN
18:46
<markit>
let me ltsp-update-image so I will have italian keyboard, I think
18:47
(I've installed missing lang packages)
18:47
if KDE and fat don't work, I'm really in troubles :(
18:52
I've some herrors in rsyic, like "puse, permission denied"
18:52
or "some files/attr were not transferred" at the end
18:54
btw, in /home I've a hidden link .directory -> /etc/kubuntu-default-settings/direcotry-home
18:56
mm can't log in kde, a xterm message "kstartconfig4 does not exists or fails" error appears
19:06
is it normal that nfsiostat reports only headers, but no traffic data
19:06
?
19:06
I mean, "Filesystem: rkB_nor/s wkB_nor/s rkB_dir/s wkB_dir/s rkB_svr/s wkB_svr/s ops/s rops/s wops/s" and then an empty line and then the prompt
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19:49
<markit>
alkisg: any idea?
19:50
I mean, I could try to create a gnome chroot, or you could try to create a kubuntu one
19:56
maybe I'd better try with a physical server
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20:16
<alkisg>
markit: did you try without NFS, as I said above?
20:16
WIth SCREEN_02=shell and all the rest?
20:17
<markit>
mmm maybe I misunderstood
20:17
my first installation was without NFS, and I had the problem
20:17
then I activated NFS, and same problem
20:17
<alkisg>
So you tried with sshfs and nfs,
20:17
<markit>
then, with NFS, I tried to copy /home as you suggested
20:17
<alkisg>
but you didn't try with a local home, which is what I'm suggesting
20:17
Ah, you tried taht?
20:17
<markit>
but was not able to login in KDE due to other errors (see above)
20:18
[19:52] <markit> I've some herrors in rsyic, like "puse, permission denied"
20:18
<alkisg>
You got this one? (08:56:04 μμ) markit: mm can't log in kde, a xterm message "kstartconfig4 does not exists or fails" error appears
20:18
<markit>
and subsequent
20:18
yes
20:18
<alkisg>
Did you manage to copy /home/username correctly?
20:18
What did you use, rsync and NFS?
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20:20
<markit>
yes, was with nfs setup, rsync failed in copying some files
20:20
<alkisg>
Or, just create a new /home/username, empty, but take care for it to have correct permissions
20:20
<markit>
also rmdir did not worked, due to a link
20:20
<alkisg>
If you have epoptes installed, I can help you remotely if you want
20:21
<markit>
I would love! I've not it already installed, but following the wiki is not hard ;P
20:21
just please wait some minutes I've to copy some important data from my father's Win200 PC he uses for some CAD
20:21
<alkisg>
OK, it will help in getting remote access to screen_02=shell etc
20:21
<markit>
he had an error and was unable to boot
20:21
<alkisg>
Sure, I have to do something before as well
20:22
<markit>
now I've booted and I'm in hurry in save the hd content
20:22
(unfortunatly, closed source very expensive hardware protected CAD involved, sigh
20:22
)
20:22
<alkisg>
VMs are handy there :)
20:23
<markit>
parallel key protection
20:23
don't think it works with VM, at least kvm can't do "pass through" of lpt1
20:24
isnt' strange that nfsiostat returns nothing?
20:24
but with tshark I can see NFS traffic flowing
20:25
(constantly... wondering what has to transmit)
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20:44
<markit>
ok, let me install epoptes then
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21:00
<markit>
maybe I've some networking troubles, I've a strange behaviour right now, let me troubleshoot it first
21:14
alkisg: I've disabled shorewall, but I've some nat issue now, do you have some time to help me understand and fix?
21:14
is a nat problem
21:15
<alkisg>
markit: I'm a little busy at the moment, better ask in the channel, don't depend on me so much :)
21:15
<markit>
alkisg: ehm, usually you are the only one that replies, lol
21:15
but if you are busy, don't mind
21:15
I've to set it up saturday
21:16
<alkisg>
No, if you see the channel logs, there are many others that reply too
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