IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 26 March 2018 (all times are UTC)
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| 08:46 | <Guest11144> good day everyone, does LTSP support UEFI PXE booting or not as yet?
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| 08:56 | <alkisg> Guest11144: not automatically, no
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| 08:56 | <alkisg> One can surely configure that manually, but there's not even documentation for that yet
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| 09:02 | <Guest11144> Hi Alkisg, not sure what you mean by "not automatically, no"
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| 09:12 | <alkisg> Guest11144: I meant that when you run ltsp-update-kernels, no uefi configuration is generated, so uefi clients won't boot
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| 09:12 | But if you manually configure dnsmasq/isc-dhcp, and pxelinux, then of course ltsp clients can boot over uefi
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| 09:13 | The problem is that there's no documentation on how to manually configure those, you'd need to search on the internet
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| 09:13 | I've done it but I haven't documented it
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| 09:19 | <Guest11144> no worries I believe we will be able to figure it out
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| 09:19 | the reason I ask is that the specific fat clients we have do not work with legacy boot + i915 driver
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| 09:19 | but if I do a base install of ubuntu using no modeset in legacy mode, then boot into uefi mode
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| 09:20 | it works perfectly on that client 1600x900
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| 09:20 | it's a hp pro-one 400 g2 with an intel HD 530 i3-6100t skylake
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| 09:21 | <alkisg> Guest11144: uefi or legacy shouldn't be related at all to if the client boots or not
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| 09:21 | Which distro/version/kernel version?
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| 09:21 | !nomodeset
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| 09:21 | <ltsp> nomodeset: Unfortunately, Kernel Mode Setting (KMS) doesn't work well with some cards. To disable it, open /var/lib/tftpboot/ltsp/i386/pxelinux.cfg/default and replace "quiet splash" with "nomodeset".
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| 09:22 | <alkisg> I doubt you need nomodeset in intel though, unless you have some misconfiguration in xorg packages
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| 09:23 | <Guest11144> It is very strange I can assure you. If I boot into legacy with ubuntu, I have to use nomodeset, the i915 driver puts the PC into a self testing loop, red blue green etc
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| 09:23 | when I change it to secure boot disable and legacy boot disable in the bios it works perfectly fine
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| 09:24 | ubuntu 16.04 kernel 4.15
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| 09:24 | sorry 18.04
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| 09:24 | but we have tried with numerous kernels
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| 09:25 | the only way we're currently able to boot the clients via pxe is using a legacy boot, but with nomodeset the clients become extremely unstable
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| 13:16 | <alkisg> Guest11144: so if you try to boot the stock ubuntu live usb stick there, without using nomodeset or anything, it fails with red/green/blue loops? I'd file a bug report in xorg for this...
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| 13:16 | (in legacy mode)
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| 13:17 | The xorg.0.log file would help a lot in troubleshooting this
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| 13:18 | <fiesh> alkisg: also, it appears our fat clients do work stably now :)
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| 13:31 | <alkisg> fiesh: yey!
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| 13:31 | You got me worried there for a while!
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| 14:23 | <fiesh> hehe
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| 15:57 | <fiesh> alkisg: ok, one problem remains... lpq finds the right printer, firefox used to find the garbage printer that was also configured in cups but NOT the default printer
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| 15:57 | so I deleted the garbage ink jet printer entirely, now firefox doesn't find any printer :/
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| 15:57 | and the same with thunderbird
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| 15:57 | I don't know how they find their printers, obviously not via lpq
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| 15:58 | <||cw> via cups?
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| 15:58 | or maybe lpd?
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| 15:59 | <fiesh> cups on the server
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| 16:00 | https://unix.stackexchange.com/questions/348686/unable-to-print-to-cups-printers-with-firefox
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| 16:00 | hmm no idea what that translates to, but seems relevant
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| 16:01 | also, lpq lists it, lpstat -a not
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| 16:01 | <alkisg> fiesh: where is the printer, on the clients or on the server or elsewhere?
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| 16:01 | <fiesh> hmm ok, lpr also doesn't work any more
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| 16:01 | it just lists the queue :(
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| 16:01 | connected to the server, it's a network printer though
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| 16:01 | postscript -- but I'd prefer it if it went through the server, but not strictly necessary
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| 16:02 | <alkisg> Through the server is fine. So, does it work fine currently on the server itself now?
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| 16:03 | <fiesh> printing a test page successfully right now... let me try lpr on it directly as well
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| 16:03 | the thing is, it used to work, although I'm not sure if it worked from firefox it definitely worked on the clients
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| 16:03 | <alkisg> OK, now on a client, cat /etc/cups/client.conf, does it have the server ip there?
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| 16:03 | <fiesh> yes, checked that
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| 16:03 | server works fully
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| 16:04 | <alkisg> so, (1) printer works on server, (2) `cupsctl | grep share` on the server says "_share_printers=1", and (3) cat /etc/cups/client.conf on the client, has the server ip?
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| 16:05 | <fiesh> (1) yes, (2) yes, (3) yes
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| 16:05 | and I set "sharing to allowed"
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| 16:05 | hmm sorry I have to leave now, argh... I'll be back tomorrow afternoon
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| 16:05 | <alkisg> All soundfine though, try restarting cups
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| 16:06 | <fiesh> thanks for the support though anyhow
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| 16:06 | will try tomorrow!
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| 16:06 | <alkisg> np
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