[solved] CUPS server error when adding new printer

[Member afghan]

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Possibly. But I would be very surprised if this were the case.
You could test by removing all of cups on your antiX install, remove (temporarily) nosystemd from antix.list in apt sources, apt update and install cups from Debian repo.

It was just pure speculation on my part; hoping it triggers some ideas from ppl who know far more than I do about the internals of these things. I’ll give it a go over the weekend to see what happens.

Could this be a wifi problem?

Can you connect the printers by ethernet to see if they work without PASSTHRU?

I doubt it’s the wifi. It works fine on my wife’s notebook running Debian Bullseye. I’ve been removing and adding printers without problems on it. It’s just on my notebook that’s running a new install of antiX 21 that showing this problem. I’ll try your lan cable suggestion a try to see what happens; over the weekend.

Thanks for the suggestions.

• This reply was modified 1 year, 3 months ago by afghan.
• This reply was modified 1 year, 3 months ago by afghan.
• This reply was modified 1 year, 3 months ago by afghan.

Beware of people who knows nothing; they are the ones that won't know that they know nothing.

[Member afghan]

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Finally found the problem! After a sleepless night of troubleshooting and tracing debug messages of system-config-printer. Somehow the base config of antiX 21 allows network printers to be discovered, but when actually adding the printer (i.e. actually polling the discovered printer to configure the appropriate driver ppd) it fails. All it needed was libnss-mdns. This provides the NSS functionality to resolve the printer in the .local domain. It is epecially required for certain printer models that configures driverless ppds on the fly. This may explain why it works for some people (having different printers) and not for me. I started to suspect something along this line when I manually added an old model of Epson ppd and it actually added the printer and printed a test page (more of garbage printing because of driver mismatch).

It worked on the Debian Bullseye system because libnss-mdns was installed.

Now everything works as normal after installing libnss-mdns. Admins should consider having libnss-mdns installed by default for new installs.

I shall call this problem solved! (btw how does one mark this topic as solved so that others reading are aware?)

Beware of people who knows nothing; they are the ones that won't know that they know nothing.

[Forum Admin anticapitalista]

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Thanks for finding the solution.
I’ll make sure future antiX-base versions include libnss-mdns.
Marked post as solved.

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antiX with runit - leaner and meaner.

[Member olsztyn]

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afghan wrote:

Somehow the base config of antiX 21 allows network printers to be discovered, but when actually adding the printer (i.e. actually polling the discovered printer to configure the appropriate driver ppd) it fails. All it needed was libnss-mdns. This provides the NSS functionality to resolve the printer in the .local domain. It is epecially required for certain printer models that configures driverless ppds on the fly.

Thank you afghan for this discovery…
Although I did not have any issue with my printers I want my system to be complete in such critical function. I am running antiX 21 runit Full and just checked – libnss-mdns is also missing in antiX Full version, not just Base. So I am adding libnss-mdns to my antiX instances as well.
Thanks and Regards…

Live antiX Boot Options (Previously posted by Xecure):
https://antixlinuxfan.miraheze.org/wiki/Table_of_antiX_Boot_Parameters

[Member ModdIt]

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Thanks afghan,
This may mean no mean no more need for USB connection in a couple of stubborn cases.
Also added to full antiX 21 for passing on to users, for all students and school kids printing is critical.

[Member seriousness]

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I always thought it was one of antiX’ limitations, that I cannot access my network printer via DNS-SD – thanks for figuring that out, afghan!

[Member greevous]

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afghan wrote:

… Can anyone try adding a printer on their antiX 21 system and see if you get the error?..

Today I installed a network printer (HP Deskjet 3050, wifi) in antiX 21. system-config-printer requested a username and password, after that the printer appeared in the list as a network printer. No errors. libnss-mdns is not installed.

• This reply was modified 11 months, 1 week ago by greevous.

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