IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 25 October 2018 (all times are UTC)
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| 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?
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| 02:03 | this is the error Im getting: https://imgur.com/a/KSbawi0
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| 02:04 | any ideas?
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| 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
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| 09:05 | <alkisg> LeePen: it "should" work
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| 09:06 | How much ram does the client have?
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| 09:37 | <LeePen> alkisg: Thanks. 114M
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| 09:37 | <alkisg> LeePen: eh, that's extremely low, e.g. the ubuntu kernel and initramfs won't even fit to be uncompressed there
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| 09:38 | And local RAM used by the browsers on the server will put a strain there too
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| 09:38 | !cheap-client
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| 09:38 | <ltsp> cheap-client: https://www.gearbest.com/tv-box-c_11262/?attr=2081-1279
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| 09:38 | <alkisg> Maybe just buy a new client with <100€ ?
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| 09:42 | <LeePen> Thanks. I'll look at that. Good to know it should work.
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| 09:43 | With that amount of RAM, 256M swap and everything on Debian Jessie it all works perfectly!
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| 09:43 | <alkisg> What's the use case, e.g. you do ever open a browser on the client?
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| 09:44 | E.g. I doubt you'd be able to watch youtube, even windowed there...
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| 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
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| 09:48 | We watch YouTube without issue.
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| 09:49 | I suppose the only concession is I use xfce.
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| 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
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| 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
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| 13:13 | any help is very appreciated!
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| 13:41 | <alkisg> robert45: what's the output of this command? ls -lh /opt/ltsp/images
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| 13:47 | <robert45> alkisg heres the output: https://pastebin.com/1rVQkCCQ tx so much for the help, its very appreciated
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| 13:48 | <alkisg> It seems ok. How about this one:
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| 13:48 | !nbd-client
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| 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
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| 13:48 | <alkisg> But put your server ip there instead
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| 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
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| 13:49 | Also I don't know why you would need an i386.tar.z there
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| 13:51 | <robert45> alkisg this is what I get: https://pastebin.com/iABPDY1J
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| 13:51 | alkisg yes I was actually running a new ltsp-update-image just for trying
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| 13:51 | but that didnt fix the issue
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| 13:52 | <alkisg> robert45: yeah something is clearly wrong, you don't even have nbd loaded there
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| 13:52 | robert45: what's the output of this? sudo ltsp-info | nc termbin.com 9999
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| 13:52 | (on the server)
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| 13:53 | <robert45> alkisg heres the output: https://pastebin.com/fF0kcq7J
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| 13:55 | <alkisg> robert45: you have an ubuntu 18.04 server and an ubuntu 1.04 chroot
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| 13:55 | *14.04
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| 13:55 | Instead, you should delete it and create a new, 18.04 chroot, or even switch to chrootless ltsp
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| 13:55 | Read the guid:
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| 13:55 | *guide
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| 13:55 | !install
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| 13:55 | <ltsp> install: http://wiki.ltsp.org/wiki/Installation/Ubuntu for Ubuntu, or http://wiki.ltsp.org/wiki/Installation for other distributions
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| 13:56 | <robert45> alkisg yes, we upgraded the server like a month ago, I think the problem appeared when I rebuilt the image
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| 13:56 | alkisg can just I run it with different versions? I really need to use the clients for work
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| 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
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| 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
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| 13:58 | <robert45> alkisg would you mind giving me a hand to do that? its very critical I get this back working
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| 13:58 | alkisg just I just chroot and run apt-get dist-upgrade'
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| 13:58 | should*
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| 14:00 | <alkisg> robert45: i dont have time right now, but you could hire me to do it in 30 mins if you like...
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| 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?
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| 14:02 | <alkisg> you'd need to run ltsp-update-kernels after that; it could work
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| 14:20 | <robert45> alkisg it didnt work, same error :(
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| 14:21 | <alkisg> robert45: i'm availalbe for hire in 10 mins if you want me to
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| 14:22 | <robert45> alkisg how much would you charge? Im just a front end user
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| 14:22 | by the way the server doesnt have inet, its on a lan
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| 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?
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| 14:51 | anyone else willing to help?
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| 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
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| 17:06 | not just rebuild
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| 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?
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| 17:10 | I am using a chrootless setup
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| 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.
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| 17:12 | <robert45> ||cw tx. I think thats the best option, will probably do that in the next few days, thanks!
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| 17:13 | <adbenitez> I am using lxde (lubuntu)
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| 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
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| 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
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| 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?
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| 17:22 | <alkisg> adbenitez: the best way forward is to use fat clients :)
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| 17:22 | About external hard drives, it shouldn't be hard to troubleshoot why it happens; either udev rules or bad drive formatting
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| 17:23 | <adbenitez> udev rules on lts.conf ??
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| 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 ;-)
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| 17:27 | <alkisg> udev rules of ltspfsd
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| 17:27 | Yes, you'd need better clients to run them well enough as fat
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| 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
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| 17:28 | You could set up a couple of apps as "remote apps", but in general, more RAM would be much better
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| 17:28 | With P4's at 2.4 GHz and above, I advice schools to buy at least 1 GB RAM for each client
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| 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
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| 17:36 | <alkisg> LTSP is about maintaining a single installation instead of many,it's not about the power of clients
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| 17:36 | E.g. here we're buying i3's and are still using ltsp
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| 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
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| 17:37 | And if he wants atoms... oh well sure, as long as they run in fat mode
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| 17:37 | Thin clients are pretty much deprecated nowadays; they won't even be supported at all in future ltsp versions...
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| 17:38 | <adbenitez> alkisg: you are right, it is really more easy to mantain, but people here are used to Windows
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| 17:39 | *maintain
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| 17:39 | <alkisg> sure, whtaever works for you
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| 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
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| 17:39 | <adbenitez> if they have powerfull computers they will whant to put Windows on that
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| 17:40 | <alkisg> sure
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| 17:40 | teachers here bought powerfull computers and still asked for ltsp
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| 17:40 | in your case, do whatever they prefer
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| 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
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| 17:41 | <alkisg> I understand; so just put windows on them
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| 17:41 | Dont bother with a temporary ltsp solution
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| 17:42 | <adbenitez> thanks for your help
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| 17:42 | <alkisg> np
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| 20:03 | <Hyperbyte> alkisg, you sell-out!
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| 20:03 | 'just put windows on them'.. gee.
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| 20:14 | <alkisg> Hyperbyte: ah, I always respect the customer's needs!
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| 20:31 | <Hyperbyte> ;-)
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