IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 19 June 2020 (all times are UTC)
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| 06:12 | <alkisg> !tag
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| 06:12 | <ltspbot> tag: tag: git tag -s v20.03 -m 'Version 20.03' && git push --tags
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| 06:12 | <alkisg> !release
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| 06:12 | <ltspbot> release: please mention the linux distro and release you're using :)
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| 16:11 | <markit> hi alkisg, I'm in my first lab with 20.04 and seems to work fine :) I'm testing some "riconditioned" PC fanless (HP, really small)
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| 16:11 | <alkisg> Hey markit, good to know
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| 16:11 | <markit> only thing that bugs me is the slow part of the initrd.img stuff... takes 40" (gbit network, just one client for testing)
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| 16:11 | is this decompression time or transfer time?
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| 16:12 | <alkisg> Transfer, some PXE drivers have slow tftp
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| 16:12 | Are you using undionly, ipxe, pxe stack?
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| 16:13 | I.e. did you enable "boot from lan" on BIOS? On UEFI? Are you using win32loader, or ipxe on the client? Etc
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| 16:13 | <markit> I'm unsing onboard pxe whatever is, I could try to find in the messages of the screen
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| 16:13 | <alkisg> Is it bios pxe or uefi pxe?
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| 16:13 | <markit> BIOS, UEFI boot is not available :(
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| 16:13 | <alkisg> OK, try this:
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| 16:13 | cd /srv/tftp/ltsp/
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| 16:13 | mv undionly.kpxe undionly.bak
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| 16:13 | wget boot.ipxe.org/ipxe.pxe -O undionly.kpxe
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| 16:13 | Then reboot client
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| 16:14 | This will use the ipxe driver, instead of the NIC driver
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| 16:14 | <markit> ok, let's try :)
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| 16:16 | well, 31", it's an improvement :)
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| 16:16 | <alkisg> Next try would be to:
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| 16:16 | cd /srv/tftp/ltsp
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| 16:16 | python3 -m http.server
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| 16:16 | and update /etc/dnsmasq.d/ltsp-dnsmasq.conf, so that it points to http://server-ip/ltsp.img instead of tftp
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| 16:17 | *plus :8000 port
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| 16:17 | I might have some path wrong there, you might need to run the http server in /srv/tftp, not in /srv/tftp/ltsp
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| 16:17 | Remember to restart dnsmasq
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| 16:18 | <vagrantc> so then it would only download ipxe using the built-in pxe stack?
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| 16:18 | <alkisg> *** update /etc/dnsmasq.d/ltsp-dnsmasq.conf, so that it points to http://server-ip/undionly.kpxe instead of undionly.kpxe
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| 16:18 | And put undionly.kpxe back, as http uses different functions
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| 16:18 | <markit> I don't understand which line I should change
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| 16:18 | <alkisg> vagrantc: right, it would only download undionly.kpxe with the pxe stack
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| 16:19 | markit: the line that has undionly.kpxe
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| 16:19 | <vagrantc> alkisg: built ltsp 20.06, haven't tested yet
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| 16:19 | <alkisg> I tried to test it at a school today, but I failed because the school didn't have internet :P
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| 16:20 | <markit> dhcp-boot=tag:!iPXE,tag:X86PC,ltsp/undionly.kpxe OR/AND pxe-service=tag:proxy,tag:!iPXE,X86PC,"undionly.kpxe",ltsp/undionly.kpxe ?
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| 16:20 | <alkisg> (due to high schools exams, they block the net)
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| 16:20 | <vagrantc> that'll teach you to not carry around and entire distro mirror
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| 16:20 | <alkisg> markit: right, change ltsp/undionly.kpxe to http://server-ip:8000/ltsp/undionly.kpxe
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| 16:21 | <vagrantc> there are students in school there?
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| 16:21 | it's all been remote around here...
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| 16:21 | <alkisg> No the exams for the university are country-wide, so they block the internet in all schools just in case :D
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| 16:21 | <vagrantc> wow.
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| 16:21 | talk about a hammer approach
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| 16:22 | <alkisg> And of course people can just surf via mobile phones...
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| 16:22 | <vagrantc> that said ... some time without internet might have positive aspects
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| 16:22 | right
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| 16:23 | <alkisg> I tried to organize my time differently (internet comes back after 10:00), but in the end I gave up and used my phone tethering
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| 16:24 | Heh, https://xkcd.com/ has a nice debian whirl today
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| 16:24 | I was very disappointed that no computer screens used the sqrt(2) aspect ratio...
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| 16:25 | <markit> alkisg: no system disk or disk error, seems not to boot , I've also tried /srv/tftp
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| 16:25 | I've restarted dnsmasq yes
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| 16:26 | I've changed both lines, now I have
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| 16:26 | <alkisg> markit: check logs to see where it's searching for the file
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| 16:26 | journalctl -f, for example
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| 16:27 | <markit> says file /srv/tftp/http://192.168.67.1:8000/ltsp/undionly.kpxe non trovato
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| 16:27 | I've pxe-service=tag:proxy,tag:!iPXE,X86PC,"undionly.kpxe",http://192.168.67.1:8000/ltsp/undionly.kpxe
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| 16:27 | and dhcp-boot=tag:!iPXE,tag:X86PC,http://192.168.67.1:8000/ltsp/undionly.kpxe
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| 16:28 | in dnsmasq config file
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| 16:32 | <alkisg> Try other things, like : pxe-service=tag:proxy,tag:!iPXE,X86PC,"http://192.168.67.1:8000/ltsp/undionly.kpxe"
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| 16:32 | I've done it in the past, but I don't have it in my notes and I need to go,
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| 16:32 | we also discussed this in a pull request or ltsp issue, so you can google there too
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| 16:33 | <markit> alkisg: no problem, we will look at it when you have time, thanks a lot :)))ù
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| 16:33 | <alkisg> https://www.google.com/search?client=ubuntu&channel=fs&q=http+boot+site%3Agithub.com%2Fltsp&ie=utf-8&oe=utf-8
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| 16:34 | There I propose a different way, to modify ltsp.ipxe instead of dnsmasq: https://github.com/ltsp/ltsp/issues/75#issuecomment-557529060
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| 16:34 | Both methods work
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| 16:34 | markit: ah, my bad
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| 16:34 | +dhcp-boot=tag:iPXE,"http://${next-server}/ltsp/ltsp.ipxe"
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| 16:34 | You need to modify the ltsp.ipxe line, NOT the undionly.kpxe line
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| 16:34 | OK bye for now :)
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| 16:34 | <markit> so I revert back all dnsmasq changes?
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| 16:35 | <alkisg> Yes, and you modify dnsmasq again, but only the ltsp.ipxe lines
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| 16:35 | <markit> ok, thanks and good day :))
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| 16:35 | (have a...)
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| 16:42 | alkisg: (just so you will read when you are back) DAMN IS FAST NOW!!! now is INSTANTANEOUS!!!
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| 16:42 | http server under /srv/tftp
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| 16:50 | <highvoltage> :)
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| 16:53 | <markit> that 40" phase now is about... 1"? maybe less
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| 17:18 | <alkisg> We should write a wiki page about that... it's also possible to run python3 -m http.server from [server] POST_SERVICE_X in ltsp.conf
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| 17:19 | <vagrantc> probably want a real web server at some point, though...
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| 17:22 | <alkisg> Eh, those who have one, can just configure it to serve /srv/tftp too
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| 20:23 | <markit> alkisg: http boot is incredible faster (40" to... 1"!!!)! Will it work with UEFI too or does it require different settings?
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