unbound variable

unbound variable

[Gottfried]

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Hi Guixers,

I installed Guix System on another laptop and made a mistake in my 
config.scm file
but I don't know where.

Could somebody have a look?


Error unbound variable in cups...

this is my config.scm file:

;; This is an operating system configuration generated
;; by the graphical installer.

(use-modules (gnu))
(use-service-modules desktop networking ssh xorg)

(operating-system
   (locale "de_AT.utf8")
   (timezone "Europe/Vienna")
   (keyboard-layout (keyboard-layout "at"))
   (host-name "akoya")
   (users (cons* (user-account
                   (name "franz")
                   (comment "Franz")
                   (group "users")
                   (home-directory "/home/franz")
                   (supplementary-groups
                     '("wheel" "netdev" "audio" "video")))
                 %base-user-accounts))
   (packages
     (append
       (list (specification->package "dmenu")
             (specification->package "st")
             (specification->package "xterm")
             (specification->package "emacs")
             (specification->package "emacs-exwm")
             (specification->package
               "emacs-desktop-environment")
             (specification->package "nss-certs"))
       %base-packages))
   (services
     (append
       (list (service xfce-desktop-service-type)
             (service mate-desktop-service-type)
             (service enlightenment-desktop-service-type)
             (service openssh-service-type)
             (service tor-service-type)
             (service cups-service-type
	             (cups-configuration
		            (web-interface? #t)
		            (extensions (list cups-filters hplip))))
	    (set-xorg-configuration
               (xorg-configuration
                 (keyboard-layout keyboard-layout))))
       %desktop-services))
   (bootloader
     (bootloader-configuration
       (bootloader grub-efi-bootloader)
       (targets (list "/boot/efi"))
       (keyboard-layout keyboard-layout)))
(swap-devices
     (list (uuid "ef09b823-2b38-4528-84c2-b991d0af66f5")))
   (file-systems
     (cons* (file-system
              (mount-point "/boot/efi")
              (device (uuid "795B-C6B8" 'fat32))
              (type "vfat"))
            (file-system
              (mount-point "/")
              (device
                (uuid "ed1e2fdd-9a66-4a99-b3a3-c26e4c6fe50f"
                      'ext4))
              (type "ext4"))
            %base-file-systems)))
-------------------------------------------------------------------------
franz@akoya ~$  sudo guix system reconfigure /etc/config.scm
hint: Consider installing the `glibc-locales' package and defining 
`GUIX_LOCPATH', along these lines:

      guix install glibc-locales
      export GUIX_LOCPATH="$HOME/.guix-profile/lib/locale"

See the "Application Setup" section in the manual, for more info.

guix system: warning: cannot determine provenance for current system
Backtrace:
           18 (primitive-load "/home/franz/.config/guix/current/bin/g…")
In guix/ui.scm:
    2263:7 17 (run-guix . _)
   2226:10 16 (run-guix-command _ . _)
In ice-9/boot-9.scm:
   1752:10 15 (with-exception-handler _ _ #:unwind? _ # _)
In guix/status.scm:
     835:3 14 (_)
     815:4 13 (call-with-status-report _ _)
In guix/scripts/system.scm:
    1281:4 12 (_)
In ice-9/boot-9.scm:
   1752:10 11 (with-exception-handler _ _ #:unwind? _ # _)
In guix/store.scm:
    661:37 10 (thunk)
    1300:8  9 (call-with-build-handler #<procedure 7f08d0222810 at g…> …)
   2170:25  8 (run-with-store #<store-connection 256.99 7f08d3902b40> …)
In guix/scripts/system.scm:
     847:2  7 (_ _)
     724:8  6 (_ #<store-connection 256.99 7f08d3902b40>)
In gnu/system.scm:
   1286:19  5 (operating-system-derivation _)
    806:11  4 (operating-system-services #<<operating-system> kernel:…>)
    840:20  3 (services _)
In /etc/config.scm:
     38:21  2 (services #<<operating-system> kernel: #<package linux-…>)
In ice-9/boot-9.scm:
   1685:16  1 (raise-exception _ #:continuable? _)
   1685:16  0 (raise-exception _ #:continuable? _)

ice-9/boot-9.scm:1685:16: In procedure raise-exception:
error: cups-service-type: unbound variable
---------------------------------------------------------------
2. question:

hint: Consider installing the `glibc-locales' package and defining 
`GUIX_LOCPATH', along these lines:

      guix install glibc-locales
      export GUIX_LOCPATH="$HOME/.guix-profile/lib/locale"
------------------------------------------------------------
I did this twice, but this message comes again.
What can I do?

-- 
Kind regards

Gottfried


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Re: unbound variable

[Felix Lechner via]

Hi Gottfried

On Tue, Nov 1, 2022 at 11:26 AM Gottfried <gottfried@posteo.de> wrote:
>
> Error unbound variable in cups...

For question #1: Do you need (use-modules (gnu services cups)) ?

Kind regards
Felix Lechner

Re: unbound variable

[Gottfried]

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Hi Felix,

thanks a lot,
I added this service, but it didn't help. The same message appear in 
updating my config.scm file



Am 01.11.22 um 19:30 schrieb Felix Lechner:
> Hi Gottfried
> 
> On Tue, Nov 1, 2022 at 11:26 AM Gottfried <gottfried@posteo.de> wrote:
>>
>> Error unbound variable in cups...
> 
> For question #1: Do you need (use-modules (gnu services cups)) ?
> 
> Kind regards
> Felix Lechner

-- 
Kind regards

Gottfried


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Re: unbound variable

[Felix Lechner via]

Hi Gottfried,

On Tue, Nov 1, 2022 at 12:14 PM Gottfried <gottfried@posteo.de> wrote:
>
> I added this service, but it didn't help.

Please try it without hplip first.

(service cups-service-type
         (cups-configuration
          (web-interface? #true)))

Kind regards
Felix Lechner

Re: unbound variable

[Gottfried]

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Hi Felix,
I tried, it didn't help.
the same error message.


Am 01.11.22 um 20:38 schrieb Felix Lechner:
> Hi Gottfried,
> 
> On Tue, Nov 1, 2022 at 12:14 PM Gottfried <gottfried@posteo.de> wrote:
>>
>> I added this service, but it didn't help.
> 
> Please try it without hplip first.
> 
> (service cups-service-type
>           (cups-configuration
>            (web-interface? #true)))
> 
> Kind regards
> Felix Lechner

-- 
Kind regards

Gottfried


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Re: unbound variable

[Felix Lechner via]

Hi Gottfried,

On Tue, Nov 1, 2022 at 1:01 PM Gottfried <gottfried@posteo.de> wrote:
>
> I tried, it didn't help.
> the same error message.

Well, I do not mean to appear argumentative but I did not see
    (gnu service cups)
at the top of the configuration you sent earlier in this thread.

The variable cups-service-type is defined there [1] and also exported
from there. [2]

Hope this helps.

Kind regards
Felix Lechner

[1] https://github.com/guix-mirror/guix/blob/d0917d778284ee7d70bc80b0538e3b4ae67870f4/gnu/services/cups.scm#L1026-L1060
[2] https://github.com/guix-mirror/guix/blob/d0917d778284ee7d70bc80b0538e3b4ae67870f4/gnu/services/cups.scm#L38

Re: unbound variable

[Gottfried]

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Hi Felix,

thanks very much for your help and efforts.

This was the decisive point.
Now it works.

I am open for any hint and I don't mind to get hundreds of pieces of 
advice, because I am hacking on the basics.

Kind regards

Gottfried


Am 01.11.22 um 21:35 schrieb Felix Lechner:
> Hi Gottfried,
> 
> On Tue, Nov 1, 2022 at 1:01 PM Gottfried <gottfried@posteo.de> wrote:
>>
>> I tried, it didn't help.
>> the same error message.
> 
> Well, I do not mean to appear argumentative but I did not see
>      (gnu service cups)
> at the top of the configuration you sent earlier in this thread.
> 
> The variable cups-service-type is defined there [1] and also exported
> from there. [2]
> 
> Hope this helps.
> 
> Kind regards
> Felix Lechner
> 
> [1] https://github.com/guix-mirror/guix/blob/d0917d778284ee7d70bc80b0538e3b4ae67870f4/gnu/services/cups.scm#L1026-L1060
> [2] https://github.com/guix-mirror/guix/blob/d0917d778284ee7d70bc80b0538e3b4ae67870f4/gnu/services/cups.scm#L38

-- 



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Re: unbound variable

[Gottfried]

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Hi Felix,

I am not sure how can I understand those github sites?

If e.g. I have a different printer (e.g. from an other company), and I 
want to install it,

can I look up at those github pages how to add the necessary things in 
my config.scm?

> [1] https://github.com/guix-mirror/guix/blob/d0917d778284ee7d70bc80b0538e3b4ae67870f4/gnu/services/cups.scm#L1026-L1060
> [2] https://github.com/guix-mirror/guix/blob/d0917d778284ee7d70bc80b0538e3b4ae67870f4/gnu/services/cups.scm#L38


By the way, my second problem seems to be solved through configunring cups.

Kind regards

Gottfried



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Re: unbound variable

[Felix Lechner via]

Hi Gottfried,

On Wed, Nov 2, 2022 at 5:50 AM Gottfried <gottfried@posteo.de> wrote:
>
> If e.g. I have a different printer (e.g. from an other company), and I
> want to install it,

That is a CUPS question. As you can imagine, there are lots of
printers. I usually look at which format the printer speaks, and how
it likes to communicate. Basic formats are PCL and Postscript, with
PCL being faster but less cool. My favorite communication for
networked printers is Port 9100, which I think used to be called
JetDirect, but there are others.

There is also USB (and parallel, if your printer is really old).

My own printer is reasonably well supported by CUPS alone, although I
might find a more capable PPD via hplip. RIght now, it's not worth my
time to go further. You, too, may be looking at a compromise.

For printers with their own data format, you may need Gutenprint,
which I believe is not packaged in Guix. More importantly, I believe
there are significant hurdles to packaging because there are so many
paths to replace.

Hope that helps.

Kind regards
Felix Lechner

Re: unbound variable

[kiasoc5]

On 11/2/22 09:48, Felix Lechner via wrote:
> Hi Gottfried,
> 
> On Wed, Nov 2, 2022 at 5:50 AM Gottfried <gottfried@posteo.de> wrote:
>>
>> If e.g. I have a different printer (e.g. from an other company), and I
>> want to install it,
> 
> That is a CUPS question. As you can imagine, there are lots of
> printers. I usually look at which format the printer speaks, and how
> it likes to communicate. Basic formats are PCL and Postscript, with
> PCL being faster but less cool. My favorite communication for
> networked printers is Port 9100, which I think used to be called
> JetDirect, but there are others.
> 
> There is also USB (and parallel, if your printer is really old).
> 
> My own printer is reasonably well supported by CUPS alone, although I
> might find a more capable PPD via hplip. RIght now, it's not worth my
> time to go further. You, too, may be looking at a compromise.
> 
> For printers with their own data format, you may need Gutenprint,
> which I believe is not packaged in Guix. More importantly, I believe
> there are significant hurdles to packaging because there are so many
> paths to replace.
> 
> Hope that helps.
> 
> Kind regards
> Felix Lechner
> 

You might not need a driver, if your printer is new enough. Printers 
made after 2010 should support IPP Everywhere, which prints without drivers.

https://www.pwg.org/ipp/everywhere.html