Re: install a Printer

[Julien Lepiller]

Hi,

I'm sorry if my answer was confusing. Do not modify the use-service-modules 
form. Instead, insert the snippet I gave you at the same position as the other 
(service …) forms, for instance right below  (service 
enlightenment-desktop-service-type)

On February 15, 2022 6:31:46 PM GMT+01:00, Gottfried <gottfried@posteo.de> 
wrote:
>Hi,
>
>I changed my
>
>/etc/config.scm file,to:
>;; This is an operating system configuration generated
>;; by the graphical installer.
>
>(use-modules (gnu))
>(use-service-modules desktop networking ssh 
>xorg*cups-service-type)****(cups-configuration****(web-interface? 
>#t)****(extensions list cups-filters hplip)))***
>(operating-system
>   (locale "de_DE.utf8")
>   (timezone "Europe/Berlin")
>   (keyboard-layout (keyboard-layout "de"))
>   (host-name "Tuxedo")
>   (users (cons* (user-account
>                   (name "gfp")
>                   (comment "Gfp")
>                   (group "users")
>                   (home-directory "/home/gfp")
>                   (supplementary-groups
>                     '("wheel" "netdev" "audio" "video")))
>                 %base-user-accounts))
>   (packages
>     (append
>       (list (specification->package "awesome")
>             (specification->package "nss-certs"))
>       %base-packages))
>   (services
>     (append
>       (list (service mate-desktop-service-type)
>             (service enlightenment-desktop-service-type)
>             (service openssh-service-type)
>             (service tor-service-type)
>             (set-xorg-configuration
>               (xorg-configuration
>                 (keyboard-layout keyboard-layout))))
>       %desktop-services))
>               
>   (bootloader
>     (bootloader-configuration
>       (bootloader grub-efi-bootloader)
>       (target "/boot/efi")
>       (keyboard-layout keyboard-layout)))
>   (swap-devices
>     (list (uuid "51d5cd20-4513-4a02-9e35-df4338eccaa0")))
>   (file-systems
>     (cons* (file-system
>              (mount-point "/boot/efi")
>              (device (uuid "BB77-FE3B" 'fat32))
>              (type "vfat"))
>            (file-system
>              (mount-point "/")
>              (device
>                (uuid "4fb0ed7c-61ab-45eb-be0b-ff527b320e6d"
>                      'ext4))
>              (type "ext4"))
>            %base-file-systems)))
>
>
>*The answer was:*
>
>/etc/config.scm:5:0: Fehler: module (gnu services cups-service-type) not 
>found Hinweis: Der Befehl `guix system search cups-service-type' sucht 
>nach einem zu `cups-service-type' passenden Dienst. Wenn Sie eine 
>Ausgabe wie `location: gnu/services/foo.scm:188:2' sehen, fügen Sie 
>`foo' in Ihre `use-service-modules'-Form ein.
>
>Gottfried
>
>Am 15.02.22 um 17:54 schrieb Julien Lepiller:
>> Your service specification is not at the right place, and incorrect. 
>> You have to be careful with parenthesis, as they define the structure 
>> of things (similar to braces in other programming languages).
>>
>> The service specification needs to be inside the list, at the same 
>> level as all these (service …) forms. In the same way, you declare a 
>> service with (service foo-service-type <configuration>), and the 
>> configuration is usually a record, so it has parenthesis too.
>>
>> For records, you do:
>>
>> (<record-name>
>> (<field-name> <field-value>)
>> …)
>>
>> With as many fields as you want, as long as they exist. In your 
>> config, guix found (cups-service-type) at the same level as other 
>> fields of the operating-system, but operating-system doesn't support 
>> such a field directly, and the field does not have a value.
>>
>> Overall, try something like this, at the same parenthetical level as 
>> the other (service …) forms.
>>
>> (service cups-service-type)
>> (cups-configuration
>> (web-interface? #t)
>> (extensions list cups-filters hplip)))
>>
>> HTH!
>>
>>
>> On February 15, 2022 5:45:34 PM GMT+01:00, Gottfried 
>> <gottfried@posteo.de> wrote:
>>
>>     Hi,
>>
>>     I tried to adjust my /etc/config.scm file, but I made some mistake.
>>
>>     Could anybody help me please?
>>
>>     here the file: (my changes are in bold letters)
>>
>>     (I have installed cups, cups-filters, hplip in my guix system)
>>
>>
>>     ;; This is an operating system configuration generated
>>
>>     ;; by the graphical installer.
>>
>>     (use-modules (gnu))
>>     (use-service-modules desktop networking ssh xorg *cups*)
>>
>>     (operating-system
>>         (locale "de_DE.utf8")
>>         (timezone "Europe/Berlin")
>>         (keyboard-layout (keyboard-layout "de"))
>>         (host-name "Tuxedo")
>>         (users (cons* (user-account
>>                         (name "gfp")
>>                         (comment "Gfp")
>>                         (group "users")
>>                         (home-directory "/home/gfp")
>>                         (supplementary-groups
>>                           '("wheel" "netdev" "audio" "video")))
>>                       %base-user-accounts))
>>         (packages
>>           (append
>>             (list (specification->package "awesome")
>>                   (specification->package "nss-certs"))
>>             %base-packages))
>>         (services
>>           (append
>>             (list (service mate-desktop-service-type)
>>                   (service enlightenment-desktop-service-type)
>>                   (service openssh-service-type)
>>                   (service tor-service-type)
>>                   (set-xorg-configuration
>>                     (xorg-configuration
>>                       (keyboard-layout keyboard-layout))))
>>             %desktop-services))
>>     *(cups-service-type)**
>>     **            (cups-configuration**
>>     **            (web-interface? #t**
>>     **            (extensions list cups-filters hplip))))*
>>         (bootloader
>>           (bootloader-configuration
>>             (bootloader grub-efi-bootloader)
>>             (target "/boot/efi")
>>             (keyboard-layout keyboard-layout)))
>>         (swap-devices
>>           (list (uuid "51d5cd20-4513-4a02-9e35-df4338eccaa0")))
>>         (file-systems
>>           (cons* (file-system
>>                    (mount-point "/boot/efi")
>>                    (device (uuid "BB77-FE3B" 'fat32))
>>                    (type "vfat"))
>>                  (file-system
>>                    (mount-point "/")
>>                    (device
>>                      (uuid "4fb0ed7c-61ab-45eb-be0b-ff527b320e6d"
>>                            'ext4))
>>                    (type "ext4"))
>>                  %base-file-systems)))
>>
>>
>>     After running: sudo guix system reconfigure /etc/config.scm
>>
>>     it said:
>>
>>     35:16: Fehler: (cups-service-type): invalid field specifier
>>     Fehler(german word means mistake)
>>
>>     What do I have to change?
>>
>>
>>     Gottfried
>>