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


Channel log from 3 April 2015   (all times are UTC)

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00:38
<awei>
Hi. When my fat client is locked, I can't log back in. I'm guessing it's because the user doesn't exist on the fat /root system. How do i refer to the server for valid user accounts?
00:40
Ok, I'm wrong about the user not existing on fat's /etc/passwd. It's there, but for some reason the lock screen prevents me from logging back in (using ubuntu-MATE for desktop on fat client)
00:41
nevermind... i think it's a bug w/ ubuntu-mate
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01:48
<MarconM>
!ltsp-pnp
01:48
<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
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05:35
<work_alkisg>
highvoltage: would it be possible to dynamically create the ldm background from whatever plymouth theme alternative is installed in the system?
05:35work_alkisg is now known as alkisg
05:35
<alkisg>
....so that we support all ubuntu variants without extra development cost, and with no extra dependencies etc?
05:37
/etc/alternatives/default.plymouth -> /lib/plymouth/themes/ubuntu-mate-logo/ubuntu-mate-logo.plymouth
05:37
...which contains: ImageDir=/lib/plymouth/themes/ubuntu-mate-logo
05:38
The script there has the necessary colors, and we can use the logo.png for our ldm title too
05:39
Hmm it might make sense to do the opposite, to have ldm only support plymouth backgrounds, and then we only need to update the debian one
05:39
*only plymouth themes
05:41
...or, only lightdm themes...
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12:21
<highvoltage>
work_alkisg: it would be possible, wouldn't be able to be sure that such a theme would look good though (you need contrast between the text and background, and ldm has very simple theming suppport), but yes
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15:12
<championofcyrodi>
hi, anyone here ever use 'ethtool'?
15:12
sorry i mean, 'lspci -v -s'
15:14
where you specify the PCI slot and it tells you what kernel driver is in use?
15:14
My issue is that I have 2 kernel modules because i just installed one... but the kernel driver in use is the wrong one.
15:16work_alkisg is now known as alkisg
15:16
<alkisg>
championofcyrodi: lspci -nn -k | grep -A 2 Ethernet
15:16
Or A 3
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15:17
<championofcyrodi>
after 2 lines works nicely.
15:17
so that does display the information much nicer.
15:18
but i'm still not sure how to actually change the device driver, Kernel driver in use: netxen_nic
15:18
Kernel modules: nx_nic, netxen_nic
15:18
<alkisg>
blacklist the one you don't want in /etc/modules
15:18
<championofcyrodi>
i'd like to switch it to nx_nic, I believe the driver is determined w/ modprobe.conf....
15:19
will that require a reboot?
15:19
<alkisg>
Is it an ltsp client?
15:20
<championofcyrodi>
no
15:20
server
15:20
<alkisg>
Yes, the quick way would be to reboot it
15:20
<championofcyrodi>
okay cool, i see that the package which installed the driver (from HP) actually did black list it already.
15:20
<alkisg>
Otherwise you'd need to rmmod, modprobe, trigger udev, restart network etc
15:20
<championofcyrodi>
because it's in the blacklist.conf, and the timestamp on that file matches up w/ when i installed it.
15:21
<alkisg>
dpkg -S file
15:21
tells you which package owns it
15:21
(on debian-like distros)
15:22
<championofcyrodi>
so i was reading that i should rmmod,modprobe, etc... but it seemed like a lot of steps
15:25
thanks for confirming that is the 'more or less' proper procedure
15:25
<alkisg>
np
15:26
<championofcyrodi>
I'm managing Solaris, Centos, Ubuntu, OS X, and some Windows workstations and servers...
15:26
so my job is a bit of a nightmare
15:26
trying to change culture and fix technical problems, but is taking a while.
15:26
because i cannot ever focus on 1 project for more than a couple of days
15:27
my users are ~50 data scientists or software engineers... so they all want to use their own mix of technology on the infrastructure.
15:29
trying to use a server w/ a 10Gbps fiber NIC as a gateway to an interface on the same box with multiple bonded link aggregates on another switch, to achieve bandwidth to support i/o between the normal LAN and the LAN running swift/s3.
15:29
right now its just 1Gbps <-> 1Gbps between the LANs and it's at capacity
15:36
heh, broke that server pretty quick... modprobe -r the kernel module the pci card was using... then re-ran lspci to see the output for that pci slot, and now it's hung.
15:36
<MarconM>
alkisg: i installed ltsp-pnpo
15:36
on lubuntu 14.04
15:37
works perfect .. but i cant log on ldm
15:37
if a change the session to openbox ... works
15:37
but on lxde .. ldm reboot
15:37
<alkisg>
There's a bug with lubuntu
15:37
https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/1330252
15:39
MarconM: what's the output of this command? grep -l "^Exec=$1\$" /usr/share/xsessions/*.desktop 2>/dev/null | sed -n '1 s,.*/\(.*\)\.desktop,\1,p'
15:39
<MarconM>
ok
15:39
<alkisg>
On the server
15:40
<MarconM>
alkisg: nothing
15:40
<alkisg>
!vnc-dide
15:40
<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.
15:40
<alkisg>
MarconM: do this ^ to let me see
15:41
<MarconM>
ahh ok
15:42
wait a second
15:42
=)
15:46
<alkisg>
MarconM: do you mind if i install epoptes and then run ltsp-update-image?
15:46
!epoptes
15:46
<ltsp>
epoptes: Epoptes is a computer lab administration and monitoring tool. It works on Ubuntu and Debian based labs with LTSP or non-LTSP servers, thin and fat clients, standalone workstations, NX clients etc. More info: http://www.epoptes.org
15:47
<alkisg>
This will allow me to debug the client side
15:47
<championofcyrodi>
alkisg: hell yea! 10000Mbps connect on that machine now.
15:47
<alkisg>
Haha, that's cool :)
15:47
<championofcyrodi>
modprobe -r froze it up, but a reboot worked fine.
15:47
<alkisg>
you should have probably stopped networking first
15:48
<championofcyrodi>
yea...
15:49
its a quorum of 3 servers that use consensus w/ rabbitmq, so it's okay to drop it and bring it back up, it will sync w/ the other 2.
15:49
but yes, it would be better to know how to swap devices w/o a reboot or locking up the server.
15:52
<MarconM>
alkisg: freaking out here rsrssr
15:53
brain explosion !!
15:53
<alkisg>
MarconM: wait until you see epoptes... :)
15:54
<MarconM>
alkisg: kkkk ok
15:54
alkisg: thank for u help
15:54
=D
15:54
alkisg: now ... the ltsp-pnp dont have chrrot correct ?
15:54
<alkisg>
Correct
15:54
<MarconM>
now i install the programa app, on real server
15:55
and run update-image
15:55
?
15:55
ltsp-update-image -c /
15:55
?
15:55
<alkisg>
Yes
15:55
So the server is also a template client
15:55
<MarconM>
ok
15:56
alkisg: thank about the info
15:56
about chrrot =)
15:56
alkisg: do u prefer pnp or the normal ltsp ?
15:56
<alkisg>
Yes, I developed it because i preferred it :)
15:56
<MarconM>
alkisg: u are dev /o\
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15:57
<MarconM>
alkisg: if i can help ... with something
15:57
=D
15:57
<alkisg>
Yes, but please don't use those short words like "u" etc... they're difficult to read
15:57
<MarconM>
ok
15:58
alkisg: are you greek ?
15:58
<alkisg>
Yup
15:58
<MarconM>
good
15:58
i study your language a few years ago
15:58
nice and beautifull place to live
15:59
<alkisg>
Unfortunately with the crisis many people are having economic difficulties...
16:00
<MarconM>
i saw on news
16:00
here in brazil we have too
16:00
<alkisg>
MarconM: reboot the client
16:00
<MarconM>
alkisg: the update has been finish
16:00
ok
16:01
alkisg: did you dev the epotes too ?
16:01
<alkisg>
Co-dev, yup..
16:02
<MarconM>
alkisg: take some time .. but wait
16:02
client loggin
16:03
alkisg: works
16:03
<alkisg>
MarconM: wait
16:04
<MarconM>
ok
16:04
alkisg: epoptes its a greek word ?
16:05
what the mean
16:05
<alkisg>
Yes, it's someone that observes
16:05
"overseer"
16:05
<MarconM>
ok
16:05
i like some greek singers
16:05
mystique
16:05
<alkisg>
Your lts.conf is broken
16:05
You have DNS_SERVER before [Default]
16:05
Don't put directives before [Default]...
16:06
<MarconM>
ok
16:06
<alkisg>
I want to see if it works for thin clients too
16:07
<MarconM>
ok
16:07
alkisg: if i one day .. format the machine .. i need to do all this again
16:07
@.@
16:07
<alkisg>
moment, phone...
16:07
<MarconM>
ok
16:08
alkisg: if u allow me .. i want to write about ltsp-pnp
16:14
http://sprunge.us/haZZ < alkisg
16:14
<alkisg>
(big phone... wait more... :))
16:14
<MarconM>
kkk =)
16:15
no problem
16:15
freeday here today =D
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16:27
<alkisg>
MarconM: ok, I'll write in the bug report that my patch does work
16:28
<MarconM>
ok
16:28
alkisg: but .. congrats ... i liked ltsp-pnp
16:28
<alkisg>
Cool
16:28
<MarconM>
alkisg: the client is a little bit sloow
16:28
<alkisg>
Sure, feel free to write whatever you want about it
16:28
<MarconM>
ok
16:28
<alkisg>
The client should be as fast as if it was running lubuntu locally
16:28
<MarconM>
yes
16:28
alkisg: any advise for me
16:28
?
16:28
<alkisg>
What advice?
16:29
<MarconM>
about install
16:29
<alkisg>
About what?
16:29
<MarconM>
create user
16:29
normal ?
16:29
adduser
16:29
late ... ltsp-update-image -c /
16:29
<alkisg>
Whatever lubuntu uses
16:29
<MarconM>
ok
16:29
<alkisg>
You don't need to run ltsp-update-image after adding users
16:29
<MarconM>
when i need ?
16:29
if i install some app ?
16:30
<alkisg>
Yes
16:34
<MarconM>
ok
16:40
<alkisg>
stgraber: I assigned https://bugs.launchpad.net/ubuntu/+source/ltsp/+bug/1330252 to you, if you could please commit the patch to the packaging code...?
16:40
One line needs to be changed, in 2 files, 40-ltsp-server and 40-ltsp-client (they're the same file essentially)
16:41
Also please consider completely syncing the ltsp packaging with debian, it's hard to maintain it that way now
16:55
<MarconM>
alkisg: the new user "aluno" ... taking too long to log in
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17:14
<alkisg>
MarconM: is it ok now?
17:14
Also, what's your network speed? 10 mbps or 100 or 1000?
17:16alkisg is now known as work_alkisg
17:16
<MarconM>
work_alkisg: 15mb/s
17:16
<work_alkisg>
That's too slow for ltsp,
17:16
...but how is it possible to have 15 mbps?
17:16
<MarconM>
my internet
17:16
<work_alkisg>
Or do you mean mbyte/sec and not mbit/sec?
17:16
<MarconM>
my adpter 1000mb/s
17:17
<work_alkisg>
LAN speed, not WAN speed
17:17
And the client adapter?
17:17
<MarconM>
10/100
17:17
<work_alkisg>
And the switch?
17:17
<MarconM>
100/1000
17:17
<work_alkisg>
OK, with 100 mbps per client it should be as fast as a local installation of lubuntu
17:17
<MarconM>
yes
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17:17
<MarconM>
now i at home
17:17
using vmware to test the clint
17:18
but on work .. i ll use real machine
17:18
<work_alkisg>
OK
17:18* work_alkisg waves, have a good weekend
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17:39
<MarconM>
work_alkisg: how i open epoptes
17:40
diretor is not epoptes group
17:41
useradd -G epoptes diretor
17:42
an error occurred wihle connection 13 permission denied
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17:45
<gbaman>
MarconM: did you remember to log out and back in?
17:45
<MarconM>
gbaman: log out
17:45
yes
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22:45
<danlez>
Hello, I am testing out LTSP today and I am a little confused. I set everything up on an ubuntu server, and it is working fine. I am writing this on a client that booted over the network from the server :)
22:45
but I get the feeling the applications run on the client side, not the server
22:46
I installed xfce in the chroot and chose that as my session. was that the mistake i made?
22:55
<vagrantc>
if you install in the chroot, and your clients have enough ram, they will typically default to running as fat clients
22:55
if you install a desktop environment, that is
22:56
though fat clients really have a lot of advantages
22:56
so it's worth considering if you have the client hardware
22:57
<danlez>
so I accidentlially made a fat client? how do I turn it into a real thin client? for now I just want to learn everything and then figure out what is best. I can think of advantages for both right now
22:57
<vagrantc>
you can set LTSP_FATCLIENT=false in lts.conf
22:58
which should be in /var/lib/tftpboot/ltsp/ARCH/lts.conf
22:58
(where arch is the architecture of your LTSP clients)
22:58
or you can create one with: ltsp-config lts.conf
22:58
it might also be in /srv/tftp ... or some other location, depends on your distro.
22:59
<danlez>
running on ubuntu, so your first guess was correct.
22:59
but had not created the lts.conf yet
23:01
<vagrantc>
ltsp-config creates an example which should be straightforward.
23:03
<danlez>
will ldm or whatever component choose automatically whether to be thin or fat client if both is available?
23:05
<vagrantc>
if files in the client's /usr/share/xsessions/*.desktop exist, and it has ram above a (configurable) threshold, it will enable fat clients.
23:06
you can force it with LTSP_FATCLIENT=true/false
23:06
<danlez>
cool. thanks a lot, I will tinker with this tomorrow :)
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23:07
<danlez>
also wanted to say that this is a great project. there are few, if any, other projects that are set up this easily for such a complex task
23:07
good job guys, gotta go to bed now. thanks again
23:08
see you
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23:46
<MarconM>
i am back \o/
23:46
@.@