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


Channel log from 25 October 2018   (all times are UTC)

01:51robert45 has joined IRC (robert45!~robert45@r167-60-21-175.dialup.adsl.anteldata.net.uy)
02:02
<robert45>
hi guys, few hours ago I ran a "ltsp-update-image" after performing an apt-get install firefox, now my thin clients are not booting anymore, any ideas what could it be?
02:03
this is the error Im getting: https://imgur.com/a/KSbawi0
02:04
any ideas?
02:19lucascastro has joined IRC (lucascastro!~lucascast@177-185-139-186.isotelco.net.br)
02:28fiesh has left IRC (fiesh!~fiesh@hq.wsoptics.de, Ping timeout: 260 seconds)
03:04vagrantc has left IRC (vagrantc!~vagrant@unaffiliated/vagrantc, Quit: leaving)
04:14adrianorg has left IRC (adrianorg!~adrianorg@179.179.74.252, Ping timeout: 268 seconds)
04:19robert45 has left IRC (robert45!~robert45@r167-60-21-175.dialup.adsl.anteldata.net.uy, Ping timeout: 252 seconds)
05:16kjackal has joined IRC (kjackal!~quassel@ppp-2-86-54-15.home.otenet.gr)
05:19adrianorg has joined IRC (adrianorg!~adrianorg@179.179.74.252)
06:06ricotz has joined IRC (ricotz!~ricotz@ubuntu/member/ricotz)
06:34kjackal_v2 has joined IRC (kjackal_v2!~quassel@uk.sesame.canonical.com)
06:37kjackal has left IRC (kjackal!~quassel@ppp-2-86-54-15.home.otenet.gr, Ping timeout: 252 seconds)
07:41Natureshadow has joined IRC (Natureshadow!45d1515d22@commu.teckids.org)
08:39
<LeePen>
Hi all. I want to upgrade the amd64 box my ltsp-server is on to Debian stable. However the thin client has a VIA i586 cpu (Samuel 2) which lacks the i686 cmov, pae etc which stable requires. If I leave the thin client chroot on Debian Jessie, am I likely to run into problems from the version mismatch? THanks
09:05
<alkisg>
LeePen: it "should" work
09:06
How much ram does the client have?
09:37
<LeePen>
alkisg: Thanks. 114M
09:37
<alkisg>
LeePen: eh, that's extremely low, e.g. the ubuntu kernel and initramfs won't even fit to be uncompressed there
09:38
And local RAM used by the browsers on the server will put a strain there too
09:38
!cheap-client
09:38
<ltsp>
cheap-client: https://www.gearbest.com/tv-box-c_11262/?attr=2081-1279
09:38
<alkisg>
Maybe just buy a new client with <100€ ?
09:42
<LeePen>
Thanks. I'll look at that. Good to know it should work.
09:43
With that amount of RAM, 256M swap and everything on Debian Jessie it all works perfectly!
09:43
<alkisg>
What's the use case, e.g. you do ever open a browser on the client?
09:44
E.g. I doubt you'd be able to watch youtube, even windowed there...
09:47
<LeePen>
Yes. In fact I have 2 desktops running simultaneously on F7 and F8 so my partner and I don't have to log out
09:48
We watch YouTube without issue.
09:49
I suppose the only concession is I use xfce.
10:16
<alkisg>
LeePen: nah, the desktop environment doesn't matter much. Gigabit networking helps a bit, but still, youtube shouldn't be watchable... more like 5-10 fps
11:42Faith has joined IRC (Faith!~Paty_@unaffiliated/faith)
13:09robert45 has joined IRC (robert45!~robert45@r167-60-25-28.dialup.adsl.anteldata.net.uy)
13:13
<robert45>
hi guys, Im experiencing some serious problem on my work with the ltsp ltsp clients, my clients are no longer booting after running a "apt-get install firefox" and "ltsp-update-image" on my chroot image. The client hangs for a bit trying to boot and then the "Error socket failed: Connection timed out" appears. See this image: https://imgur.com/a/VC7zvwi
13:13
any help is very appreciated!
13:25lucascastro has left IRC (lucascastro!~lucascast@177-185-139-186.isotelco.net.br, Remote host closed the connection)
13:41
<alkisg>
robert45: what's the output of this command? ls -lh /opt/ltsp/images
13:47
<robert45>
alkisg heres the output: https://pastebin.com/1rVQkCCQ tx so much for the help, its very appreciated
13:48
<alkisg>
It seems ok. How about this one:
13:48
!nbd-client
13:48
<ltsp>
nbd-client: To try mounting the NBD image from the client initramfs: nbd-client 192.168.67.1 -N /opt/ltsp/i386 /dev/nbd0
13:48
<alkisg>
But put your server ip there instead
13:49
-rw-r--r-- 1 root root 1.3G Oct 25 06:44 i386.img.tmp ==> this one shows that ltsp-update-image had issues at least one time
13:49
Also I don't know why you would need an i386.tar.z there
13:51
<robert45>
alkisg this is what I get: https://pastebin.com/iABPDY1J
13:51
alkisg yes I was actually running a new ltsp-update-image just for trying
13:51
but that didnt fix the issue
13:52
<alkisg>
robert45: yeah something is clearly wrong, you don't even have nbd loaded there
13:52
robert45: what's the output of this? sudo ltsp-info | nc termbin.com 9999
13:52
(on the server)
13:53
<robert45>
alkisg heres the output: https://pastebin.com/fF0kcq7J
13:55
<alkisg>
robert45: you have an ubuntu 18.04 server and an ubuntu 1.04 chroot
13:55
*14.04
13:55
Instead, you should delete it and create a new, 18.04 chroot, or even switch to chrootless ltsp
13:55
Read the guid:
13:55
*guide
13:55
!install
13:55
<ltsp>
install: http://wiki.ltsp.org/wiki/Installation/Ubuntu for Ubuntu, or http://wiki.ltsp.org/wiki/Installation for other distributions
13:56
<robert45>
alkisg yes, we upgraded the server like a month ago, I think the problem appeared when I rebuilt the image
13:56
alkisg can just I run it with different versions? I really need to use the clients for work
13:57
<alkisg>
There was a problem with different versions of nbd; but even so, your ltsp-update-image clearly broke something, as you don't even have nbd at all
13:57
So instead of spending time to troubleshoot the problem that will get you 14.04 working, better just update the chroot to 18.04 instead at the same time
13:58
<robert45>
alkisg would you mind giving me a hand to do that? its very critical I get this back working
13:58
alkisg just I just chroot and run apt-get dist-upgrade'
13:58
should*
14:00
<alkisg>
robert45: i dont have time right now, but you could hire me to do it in 30 mins if you like...
14:00
<robert45>
alkisg or what about copying one of the .old images you see in /opt/ltsp/images, will that work as a temporary solution?
14:02
<alkisg>
you'd need to run ltsp-update-kernels after that; it could work
14:17GodFather has joined IRC (GodFather!~rcc@174-081-217-069.dhcp.chtrptr.net)
14:18GodFather has joined IRC (GodFather!~rcc@174-081-217-069.dhcp.chtrptr.net)
14:20
<robert45>
alkisg it didnt work, same error :(
14:21
<alkisg>
robert45: i'm availalbe for hire in 10 mins if you want me to
14:22
<robert45>
alkisg how much would you charge? Im just a front end user
14:22
by the way the server doesnt have inet, its on a lan
14:23
also, I ran a "service nbd-server status" and it shows the nbd server running, are you talking about ndb on the client side?
14:51
anyone else willing to help?
15:20lucascastro has joined IRC (lucascastro!~lucascast@177-185-139-186.isotelco.net.br)
15:21spaced0ut has left IRC (spaced0ut!~spaced0ut@unaffiliated/spaced0ut, Quit: Leaving)
15:21spaced0ut has joined IRC (spaced0ut!~spaced0ut@unaffiliated/spaced0ut)
15:26adbenitez has joined IRC (adbenitez!a99eb802@gateway/web/freenode/ip.169.158.184.2)
15:41adbenitez has left IRC (adbenitez!a99eb802@gateway/web/freenode/ip.169.158.184.2, Ping timeout: 256 seconds)
17:05
<||cw>
robert45: unless you have odd custom stuff in your client images, sometimes it's just easier to wipe the chroot and make a new one
17:06
not just rebuild
17:08adbenitez has joined IRC (adbenitez!a99eb0fe@gateway/web/freenode/ip.169.158.176.254)
17:10
<adbenitez>
something really weird is happening with my LTSP server, when I insert an USB stick the dialog asking for the password to mount the device is showing up on one of the thin clients not in the server, any advice?
17:10
I am using a chrootless setup
17:12
<alkisg>
adbenitez: I've seen this but I don't know of any fixes. It sounds like a problem with mate and policykit.
17:12
<robert45>
||cw tx. I think thats the best option, will probably do that in the next few days, thanks!
17:13
<adbenitez>
I am using lxde (lubuntu)
17:14
somethimes this doesn't happens, also when it does happens other thin clients are presented with a dialog saying that it fails to mount the device
17:16
alkisg: this is kind of serious since the admin isn't able to use USB until he take control of the thin client with epoptes and closes the dialog then the USB is mounted on the server
17:20
another trouble with devices: the thin client users are able to mount USB sticks but they aren't able to mount external hard drives, any clue?
17:22
<alkisg>
adbenitez: the best way forward is to use fat clients :)
17:22
About external hard drives, it shouldn't be hard to troubleshoot why it happens; either udev rules or bad drive formatting
17:23
<adbenitez>
udev rules on lts.conf ??
17:26
alkisg: about fat clients, with 512MB of RAM maybe the OS will run really slow, like the previously win XP server, speed is what I had used to convince this people to use free software ;-)
17:27
<alkisg>
udev rules of ltspfsd
17:27
Yes, you'd need better clients to run them well enough as fat
17:27
With 512 MB schools here run tuxpaint etc fine, but a browser needs more RAM than that, so they can only do minimal browsing
17:28
You could set up a couple of apps as "remote apps", but in general, more RAM would be much better
17:28
With P4's at 2.4 GHz and above, I advice schools to buy at least 1 GB RAM for each client
17:34
<adbenitez>
buying new hardware isn't possible right now, because there are no supplyers, any way they will invest in full powerfull computers not in thin clients, even when thin clients are such a good and economic extrategy
17:36
<alkisg>
LTSP is about maintaining a single installation instead of many,it's not about the power of clients
17:36
E.g. here we're buying i3's and are still using ltsp
17:36
If someone wants i3 clients, he'll buy i3's, if he wants i7's, i7's, and still use ltsp just to be able to maintain one installation instead of many
17:37
And if he wants atoms... oh well sure, as long as they run in fat mode
17:37
Thin clients are pretty much deprecated nowadays; they won't even be supported at all in future ltsp versions...
17:38
<adbenitez>
alkisg: you are right, it is really more easy to mantain, but people here are used to Windows
17:39
*maintain
17:39
<alkisg>
sure, whtaever works for you
17:39
i prefer spending 1 hour to setup a computer lab with ltsp, than 10 days to set it up with windows, but whatever people want
17:39vagrantc has joined IRC (vagrantc!~vagrant@unaffiliated/vagrantc)
17:39
<adbenitez>
if they have powerfull computers they will whant to put Windows on that
17:40
<alkisg>
sure
17:40
teachers here bought powerfull computers and still asked for ltsp
17:40
in your case, do whatever they prefer
17:40
<adbenitez>
alkisg: I also prefer that, but it is not my desition, I am just a worker, and on top of that the other workers also depend on software made for windows
17:41
<alkisg>
I understand; so just put windows on them
17:41
Dont bother with a temporary ltsp solution
17:42
<adbenitez>
thanks for your help
17:42
<alkisg>
np
17:45adrianor1 has joined IRC (adrianor1!~adrianorg@189.58.237.99.dynamic.adsl.gvt.net.br)
17:45vagrantc has left IRC (vagrantc!~vagrant@unaffiliated/vagrantc, Ping timeout: 268 seconds)
17:46vagrantc has joined IRC (vagrantc!~vagrant@unaffiliated/vagrantc)
17:48adrianorg has left IRC (adrianorg!~adrianorg@179.179.74.252, Ping timeout: 252 seconds)
18:07adbenitez has left IRC (adbenitez!a99eb0fe@gateway/web/freenode/ip.169.158.176.254, Quit: Page closed)
18:36lucascastro has left IRC (lucascastro!~lucascast@177-185-139-186.isotelco.net.br, Remote host closed the connection)
18:54lucascastro has joined IRC (lucascastro!~lucascast@189.90.38.210.jupiter.com.br)
19:00robert45 has left IRC (robert45!~robert45@r167-60-25-28.dialup.adsl.anteldata.net.uy, )
19:53lucascastro has left IRC (lucascastro!~lucascast@189.90.38.210.jupiter.com.br, Remote host closed the connection)
20:01lucascastro has joined IRC (lucascastro!~lucascast@189.90.38.210.jupiter.com.br)
20:03
<Hyperbyte>
alkisg, you sell-out!
20:03
'just put windows on them'.. gee.
20:04lucascastro has left IRC (lucascastro!~lucascast@189.90.38.210.jupiter.com.br, Client Quit)
20:14
<alkisg>
Hyperbyte: ah, I always respect the customer's needs!
20:25ricotz has left IRC (ricotz!~ricotz@ubuntu/member/ricotz, Read error: Connection reset by peer)
20:31
<Hyperbyte>
;-)
21:10Faith has left IRC (Faith!~Paty_@unaffiliated/faith, Quit: Leaving)
21:22kjackal_v2 has left IRC (kjackal_v2!~quassel@uk.sesame.canonical.com, Ping timeout: 246 seconds)
21:22kjackal has joined IRC (kjackal!~quassel@2a02:587:3101:400:8c1b:8441:9019:ed7a)
21:36kjackal has left IRC (kjackal!~quassel@2a02:587:3101:400:8c1b:8441:9019:ed7a, Ping timeout: 264 seconds)
22:59GodFather has left IRC (GodFather!~rcc@174-081-217-069.dhcp.chtrptr.net, Ping timeout: 246 seconds)
23:27lucascastro has joined IRC (lucascastro!~lucascast@177-185-139-186.isotelco.net.br)