Guix guided installer should set up printers and scanners

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5 participants
  • Danny Milosavljevic
  • Efraim Flashner
  • Ludovic Courtès
  • Mathieu Othacehe
  • pelzflorian (Florian Pelz)
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unassigned
Submitted by
Danny Milosavljevic
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Debbugs page

Danny Milosavljevic wrote 5 years ago
(address . bug-guix@gnu.org)
20191110154459.507093b4@scratchpost.org
Hi,

currently, the Guix guided installer does not set up printers and
scanners (see bug# 38064), making those not work after installation.

It would be good to extend the Guix installer to also install "cups" and
"sane-backends" services, just like it already does for networking services,
if applicable. Long term, we could also do the actual configuration, but
right now even just the services below would already be a big improvement:

The relevant operating-system config snippets are:

(services
(append
(list (service cups-service-type
(cups-configuration
(web-interface? #t)
(extensions
(list cups-filters escpr hplip-minimal))))
(simple-service 'custom-udev-rules udev-service-type
(list sane-backends))
[...]
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Ludovic Courtès wrote 5 years ago
(name . Danny Milosavljevic)(address . dannym@scratchpost.org)(address . 38161@debbugs.gnu.org)
87lfsmm8k3.fsf@gnu.org
Hi,

Danny Milosavljevic <dannym@scratchpost.org> skribis:

Toggle quote (8 lines)
> (services
> (append
> (list (service cups-service-type
> (cups-configuration
> (web-interface? #t)
> (extensions
> (list cups-filters escpr hplip-minimal))))

This bit above would have to be opt-in, but…

Toggle quote (3 lines)
> (simple-service 'custom-udev-rules udev-service-type
> (list sane-backends))

… this one could perhaps be enabled by default for “desktop”
installations, since, I believe, it doesn’t increase the disk space used
by the resulting system.

WDYT?

Thanks,
Ludo’.
Efraim Flashner wrote 5 years ago
(name . Ludovic Courtès)(address . ludo@gnu.org)
20191112073530.GJ3954@E5400
On Mon, Nov 11, 2019 at 10:01:32PM +0100, Ludovic Courtès wrote:
Toggle quote (17 lines)
> Hi,
>
> Danny Milosavljevic <dannym@scratchpost.org> skribis:
>
> > (services
> > (append
> > (list (service cups-service-type
> > (cups-configuration
> > (web-interface? #t)
> > (extensions
> > (list cups-filters escpr hplip-minimal))))
>
> This bit above would have to be opt-in, but…
>
> > (simple-service 'custom-udev-rules udev-service-type
> > (list sane-backends))

This could be sane-backends-minimal. I checked the udev-rules in both of
them and they're identical.

Toggle quote (6 lines)
>
> … this one could perhaps be enabled by default for “desktop”
> installations, since, I believe, it doesn’t increase the disk space used
> by the resulting system.
>

At the very least I think the udev rules should be added to the cups
service.


--
Efraim Flashner <efraim@flashner.co.il> אפרים פלשנר
GPG key = A28B F40C 3E55 1372 662D 14F7 41AA E7DC CA3D 8351
Confidentiality cannot be guaranteed on emails sent or received unencrypted
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Danny Milosavljevic wrote 5 years ago
(name . Efraim Flashner)(address . efraim@flashner.co.il)
20191112144944.580c9bcf@scratchpost.org
Hi,

On Tue, 12 Nov 2019 09:35:30 +0200
Efraim Flashner <efraim@flashner.co.il> wrote:

Toggle quote (3 lines)
> At the very least I think the udev rules should be added to the cups
> service.

Hmm, does cups have anything to do with scanning?

Long term, people will not print things anymore but will scan things
(until such time where that stops, too), so "cups" will be way less
important that "sane" in the long run--and, if optional, it can easily
be that a user has "sane" but not "cups" in the system.

I'd prefer to just add

(simple-service 'custom-udev-rules udev-service-type
(list sane-backends-minimal))

unconditionally (if it doesn't increase the size anyway).
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pelzflorian (Florian Pelz) wrote 5 years ago
(name . Danny Milosavljevic)(address . dannym@scratchpost.org)
20191112143556.b7v5v4fdcixoht7z@pelzflorian.localdomain
On Tue, Nov 12, 2019 at 02:49:44PM +0100, Danny Milosavljevic wrote:
Toggle quote (2 lines)
> Long term, people will not print things anymore but will scan things

This does not match my experience. Printing things at university for
free (up to a quota) is very popular with students. Many prefer
reading on paper or making notes. Paper is like a cheap extra screen.

Nonetheless, instead of making hplip a default, I would prefer having
a video on how to install and configure printing services among top
Web search results. This sounds like much work, but I’m not sure how
much work it really is. Installing services is really easy on Guix.

Regards,
Florian
Ludovic Courtès wrote 5 years ago
(name . pelzflorian (Florian Pelz))(address . pelzflorian@pelzflorian.de)
87mud1p0a0.fsf@gnu.org
Hi!

"pelzflorian (Florian Pelz)" <pelzflorian@pelzflorian.de> skribis:

Toggle quote (6 lines)
> On Tue, Nov 12, 2019 at 02:49:44PM +0100, Danny Milosavljevic wrote:
>> Long term, people will not print things anymore but will scan things
>
> This does not match my experience. Printing things at university for
> free (up to a quota) is very popular with students.

In this context, students to not need to run the CUPS daemon on their
laptop though: they just need to fill out ~/.cups/client.conf so that it
talks to the right pool server, and then everything should “just work.”

Ludo’.
Mathieu Othacehe wrote 3 years ago
(name . Ludovic Courtès)(address . ludo@gnu.org)
87h7a6fn8y.fsf@gnu.org
The installer is now proposing to install the cups service.

Closing, thanks.

Mathieu
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