IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 27 January 2017 (all times are UTC)
| 00:41 | <markit> sleep time
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| 05:22 | <alkisg> Heh, 2 in the morning, no markit I'm not here :D
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| 05:29 | <uchitel^302-uchi> when epoptes goes to windows platform?
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| 08:43 | <Guest67645> hi. i have question again. clients are working how "fat"- clients.
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| 08:44 | i added line in config file lts.conf
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| 08:44 | [Default] LTSP_FATCLIENT=False LDM_DIRECTX=True
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| 08:44 | <alkisg> 3 lines, not 1, right?
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| 08:45 | <Guest67645> no 3 lines one under another
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| 08:45 | <alkisg> ok, and?
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| 08:46 | <Guest67645> in log file i see: Starting to serve . Size of exported file/device is 1467543552
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| 08:48 | <alkisg> and?
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| 08:49 | <Guest67645> does clients download all image?
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| 08:49 | So it should be?
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| 08:49 | <alkisg> No, it doesn't
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| 08:49 | It is exported, it's not downloaded
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| 08:50 | The clients reads only the parts that it needs each time, dynamically
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| 08:51 | <Guest67645> ok. what will be ip on client? ip server?
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| 08:52 | <alkisg> I don't understand the question
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| 08:53 | <Guest67645> i see ip on the client 192.168.58.20. and ip on server the same
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| 08:53 | <alkisg> How do you see the ip on the client, you opened gnome-terminal?
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| 08:53 | <Guest67645> yes
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| 08:54 | <alkisg> That terminal runs on the server
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| 08:54 | That's why you see the server ip
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| 08:54 | It is a thin client now, so the programs run on the server, not on the client
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| 08:57 | <Guest67645> so, now i have thin client? right? because yesterday i saw ip the server on the client
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| 08:59 | <alkisg> If you run `hostname` on that terminal, you should see the server's hostname, not the client's "ltsp123"
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| 08:59 | So yes you have a thin client now
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| 09:05 | <Guest67645> thank you very much. you helped me a lot
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| 09:06 | <alkisg> You're welcome... anyway, what is your server cpu and ram?
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| 09:09 | <Guest67645> server works on kvm-virtualization and now have RAM 1Gb and CPU(s): 1
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| 09:10 | this options will be changed
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| 09:10 | <alkisg> Eh ok, note that you'll need at least 500 MB for each client, so for 10 clients go for 5+ GB RAM on the server
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| 09:12 | <Guest67645> ok. Thank you again
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| 14:08 | <markit> is it me or linux-firmware-nonfree is missing in (k)ubuntu 16.04?
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| 14:09 | maybe has been renamed but can't figure out how
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| 14:51 | <alkisg> markit, are you looking for broadcom? https://ubuntuforums.org/showthread.php?t=2325823
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| 14:53 | <markit> alkisg: generic stuff, i.e. time ago amd radeon was not working properly without that
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| 14:54 | alkisg: I've changed my script to use apt-get instead of aptitude, I've a problem though
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| 14:54 | <alkisg> markit, I don't think linux-firmware-nonfree had anything to do with amd in trusty
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| 14:54 | <markit> aptitude a b c installs a and c even if b is missing, while apt-get aborts... Is the "-m" flag the right one? (just discovered why I miss a lot of stuff...)
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| 14:54 | <alkisg> Here's the file list: http://packages.ubuntu.com/trusty-updates/all/linux-firmware-nonfree/filelist
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| 14:55 | <markit> alkisg: but the entire package seems missing from their repo!
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| 14:55 | <alkisg> Yes, it got split up to other packages
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| 14:55 | See the link I gave above
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| 14:56 | <markit> the list got from $ apt-file --package-only search /lib/firmware/ you mean? mmm so ODD
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| 14:57 | <alkisg> No, for the ubuntuforums.org one
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| 14:58 | <markit> yes, that post... I don't have a broadcom issue, just wanted to reduce hw issues with the firmware
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| 14:58 | btw, is "-m" the right flag for apt-get install?
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| 15:00 | mmm no, does not work too
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| 15:05 | <Guest67645> i have one question. when works two thin client i see trafic 80-100Mbit/s
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| 15:19 | <alkisg> Guest67645: and the question is?
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| 15:20 | markit, apt-get purge --auto-remove $(dpkg-query -W -f '${Package} ' google-chrome-stable flashplugin-installer flashplugin-nonfree pepperflashplugin-nonfree)
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| 15:20 | That dpkg-query command only keeps the ones that actually exist
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| 15:21 | You need one similar to find which ones are there to pass to apt
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| 15:23 | <markit> alkisg: clever solution (as usual ;P), I was changing the script to iterate through packages
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| 15:28 | <Guest67645> question. it is real? if will be work four thin client. programs will be work very bad
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| 15:41 | <alkisg> Guest67645: yes, that's why you need gigabit on the server, to handle more clients,
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| 15:41 | and that's why I was telling you to use fat and not thin...
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| 15:43 | !ltsp-pnp
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| 15:43 | <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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| 15:43 | <alkisg> That guide ^ is optimized for both thin and fat clients, with ubuntu-mate, which is light enough
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| 16:48 | <Guest67645> if i will be used fat client and all clients will be write information in the programs how will be information save on server?
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| 16:48 | <alkisg> Guest67645: LTSP fat clients are diskless and netbooted, the same as thin clients
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| 16:48 | The difference is that they use their own cpu and ram to run the programs
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| 16:49 | What are your client specs, which cpu and how much ram do they have?
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| 16:51 | <Guest67645> pentium4 2GHz ram 1Gb
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| 16:53 | <alkisg> It's ok for a fat client then
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| 16:53 | Use the tutorial I said, ltsp-pnp
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| 16:53 | And ubuntu-mate 16.04
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| 16:54 | <Guest67645> ok. thank you
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| 16:55 | <alkisg> np
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| 18:21 | <rlyshw> Hi! Has anyone had success using raspberry pis as thin clients for LTSP?
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| 18:51 | <alkisg> rlyshw: yes, bot as thin and fat clients
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| 18:51 | But I wouldn't recommend them, they're too slow
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| 18:51 | !cheap-client
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| 18:51 | <ltsp`> cheap-client: http://www.gearbest.com/tv-box-mini-pc/pp_343636.html
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| 18:51 | <alkisg> Something like that ^ is much better
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| 19:05 | <rlyshw> ah, I see. Yeah, we have one working(kinda) using berryterminal(http://berryterminal.com/doku.php) but it's old and not really well-supported.
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| 19:05 | <alkisg> !raspberrypi
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| 19:05 | <ltsp`> raspberrypi: (#1) Ubuntu/LTSP on Pi 2: https://help.ubuntu.com/community/UbuntuLTSP/RaspberryPi, or (#2) Debian/LTSP (with raspbian chroot) on Pi: http://cascadia.debian.net/trenza/Documentation/raspberrypi-ltsp-howto/, or (#3) unofficial Ubuntu/LTSP (with raspbian chroot) on Pi: http://pinet.org.uk/
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| 19:05 | <alkisg> The first 2 ones are the ones supported by ltsp
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| 19:06 | Although it's really best to throw them away and buy something else :D
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| 19:06 | <rlyshw> True lol I guess this project is just to determine the viability of deploying a bunch of pi thin clients.
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| 19:07 | We really only need them to do pretty basic office functions (email, document processing) and the berryterminal system seems to be stable enough for that.
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| 19:07 | <alkisg> Have you tried working with a pi as your main pc?
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| 19:07 | It's worse than working with a mobile phone...
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| 19:08 | It's around 50 times slower than an i3
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| 19:08 | The beelink that I linked above, is 10 times faster than pi, and costs the same
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| 19:09 | <rlyshw> I'll look for it on amazon too and let my boss know.
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| 19:10 | It seems like the thin client solution might be good enough for basic office purposes though
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| 19:10 | raspberry pi* solution
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| 19:20 | <markit> btw, pi3 is much faster than pi2, in any case I think fat client is the way to go
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| 19:35 | <alkisg> pi3 is 1.5 times faster than rpi2, i3 is 50 times faster
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| 19:36 | There's absolutely no comparison... you can't even browse normally with a pi3
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| 19:58 | <markit> that's true. Btw, the linked pc is "out of stock"
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| 20:00 | <alkisg> It's just an example, no point in updating the link every once in a while...
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| 20:00 | It was 60 euros when I linked it
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| 20:18 | <rlyshw> Hey so I'm running through the Ubuntu guide and I get to this part: ltsp-build-client --arch armhf --config /etc/ltsp/ltsp-build-client-raspi2.conf
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| 20:18 | and it seems to get stuck at I: Running command: debootstrap --arch armhf --foreign trusty /opt/ltsp/armhf http://ports.ubuntu.com/ubuntu-ports I: Retrieving Release
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| 20:19 | does this just take a while, or has something gone wrong?
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| 20:19 | <alkisg> How come you're using trusty and not xenial, 16.04?
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| 20:21 | <rlyshw> All of our servers still run on 14.04
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| 20:22 | We haven't gotten around to updating our scripts to use systemd
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| 20:22 | <alkisg> I don't think 14.04 has the raspi2 kernel
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| 20:22 | Best use 16.04 for the pi chroot
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| 20:22 | <rlyshw> ah, that would make sense
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| 20:23 | can I define that in the ltsp-build-client-raspi2.conf file?
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| 20:26 | although both the trusty and xenial ports list a armhf Release
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| 20:26 | http://ports.ubuntu.com/ubuntu-ports/dists/trusty/main/binary-armhf/
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| 20:26 | Still hanging even when I set --dist xenial
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| 20:27 | <alkisg> trusty has an armhf release, but not a raspi2 kernel
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| 20:27 | It's not supposed to hang, though
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| 20:33 | <rlyshw> i set --debug and it's just sitting at the I: Retrieving Release part
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| 20:33 | The debug stuff doesn't really seem to show anything more than the plugins it loaded.
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| 20:34 | <alkisg> At that point, it's just debootstrap, not ltsp running
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| 20:34 | <rlyshw> doing stuff behind the scenes? Am I just being impatient?
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| 20:34 | <alkisg> You can run ps aux and see the debootstrap command, and run it for yourself without ltsp
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| 20:34 | You can also try plain debootstrap without armhf emulation
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| 20:35 | It may be an internet issue, or you being impatient,or slow cpu ==> very slow armhf emulation
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| 20:35 | <rlyshw> ps aux | grep debootstrap
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| 20:35 | gives
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| 20:35 | wget -q -O /opt/ltsp/armhf/var/lib/apt/lists/partial/debootstrap.invalid_dists_xenial_Release http://ports.ubuntu.com/ubuntu-ports/dists/xenial/Release
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| 20:35 | and another two running debootstrap processes
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| 20:36 | <alkisg> Invalid dist doesn't sound proper
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| 20:36 | <rlyshw> definitely seems off
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| 20:36 | <alkisg> Maybe you have an old debootstrap?
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| 20:36 | E.g. disabled trusty-updates?
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| 20:36 | Really though, pi's are not worth the time...
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| 20:36 | <rlyshw> debootstrap --version debootstrap 1.0.59ubuntu0.6
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| 20:37 | <alkisg> ...sounds recent...
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| 20:54 | <rlyshw> I'll go talk to the debootstrap folks
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| 21:30 | <rlyshw> alright so I figured out the issue
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| 21:30 | stale proxy settings in /etc/wgetrc messed up debootstrap
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| 21:31 | and now the chroot apt-get update stuff is failing because that proxy isn't set right. I'll just chroot in and manually run the apt-get stuff.
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