IRC chat logs for #ltsp on irc.libera.chat (webchat)
Channel log from 9 January 2021 (all times are UTC)
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| 14:50 | <onixx> good morning, I have a question regarding local printers. I have set CUPS_SERVER="localhost" which works and enables the local cups server. I can goto localhost:631 and add the usb printer locally. it prints and all good. however my added printer does not survive a reboot. how can I fix this ?
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| 14:59 | <alkisg> onixx: you're supposed to add the printer driver in the image
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| 14:59 | Does it require a driver? What are the steps to "add the usb printer locally"?
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| 15:02 | <onixx> alkisg: I went to localhost:631, admin, add printer, choose usb printer lexmark, browse ppd ... next finish
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| 15:02 | <alkisg> If everything else fails, you can copy /etc/cups/printer*.conf from the client to the server's /etc/ltsp/printers*.conf, and then use a POST_INIT_CP parameter in ltsp.conf to put them back to the client /etc/cups
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| 15:02 | Is the ppd in the image? Why isn't it automatically installed, there's no usbid match for it?
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| 15:02 | Normally, if one adds a usb printer, it's auto-installed, it doesn't require manually browsing the ppd
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| 15:02 | <onixx> alkisg: probably not... it does not auto install you are right
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| 15:03 | <alkisg> When you're locating the ppd, where do you find it, under /home/user?
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| 15:03 | <onixx> alkisg: the lexmark choices are limited when I add printed hence why I needed to browse the pdd
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| 15:03 | ppd
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| 15:03 | <alkisg> OK, but where is the ppd, in /usr/share or in /home etc?
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| 15:03 | To see if it's in the image or not
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| 15:03 | <onixx> alkisg: on a network share (for now)
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| 15:04 | <alkisg> Are you using a chrootless setup, or a vm setup, or a chroot setup?
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| 15:04 | <onixx> alkisg: on, so ideally i would setup the ppd so cups likes it and auto installs !!
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| 15:05 | <alkisg> If you're using chrootless, you can install the printer to the server
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| 15:05 | Then run `ltsp image /`, and the driver will exist in the image
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| 15:05 | So it will be auto-activated
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| 15:10 | <onixx> alkisg: I am chrootless. will try that now
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| 15:22 | alkisg: can you explain the syntax of POST_INIT_CP . I think I will just do that for now
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| 15:32 | <alkisg> If you put things in /etc/ltsp, and you run `ltsp initrd`, they then go to the client /etc/ltsp without running `ltsp image`
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| 15:33 | So POST_INIT_CP_PRINTERS="cp /etc/ltsp/printer.conf /etc/cups" would then put them to /etc/cups
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| 15:33 | But you'll need to copy both the printers.conf and the ppd etc; it's easier if you install the printer to the server than copying files around manually
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| 15:33 | <onixx> alkisg: thanks. makes sense. will try to get it to auto install for sure
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| 16:00 | <onixx> alkisg: got the driver on server and client now autoinstalls
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| 16:01 | alkisg: one issue however, for whatever reason the printer is autoinstalled and is paused + not accepting job. I have to go to cups interface to unpause and make it accept jobs
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| 16:23 | <alkisg> Maybe when you ran `ltsp image /`, it was removed+paused on the server
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| 16:25 | <onixx> alkisg: I never installed it on the server. I just added the ppd
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| 16:25 | <onixx> alkisg: Its never been connected to the server
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| 16:53 | <alkisg> onixx: that's why then
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| 17:10 | Keep a backup of /etc/cups on the client, then activate the printer, then run a diff, to see what part it updates
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| 17:10 | And do it from a POST_INIT command
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| 17:33 | <onixx> alkisg: update: if I connect the printer on the client after it is booted, it installs normally ! I believe its something to do with the fact it installs too early
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| 17:33 | alkisg: maybe I can delay how quick cups is starting ?
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| 17:33 | <alkisg> onixx: run a diff
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| 17:33 | If you find the line that changes, then we can easily google it
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| 17:33 | It shouldn't take more than 1 minute
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| 17:34 | Boot, cp -a /etc/cups /etc/cups.bak, activate printer, diff -r /etc/cups /etc/cups.bak
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| 17:34 | You'll need root access to do that
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| 19:26 | <onixx> alkisg: looks like problem has nothing to do with cups. printer experiences issues even after I enable it !
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| 19:26 | alkisg: usblp0 keeps disconnecting and reconnecting
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| 19:27 | alkisg: seen this in dmesg
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| 20:06 | <alkisg> onixx, sounds unrelated to ltsp...
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| 20:11 | <onixx> alkisg: yes
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| 20:49 | <onixx> alkisg: thanks for all your help
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| 21:10 | <alkisg> np
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