From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ricardo Wurmus <rekado@elephly.net>
Subject: Re: Trying to install Guix System on a nonfree computer,
 the system frezees at booting, bug?
Date: Tue, 23 Jul 2019 21:37:02 +0200
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To: Jan <tona_kosmicznego_smiecia@interia.pl>
Cc: help-guix@gnu.org


Hi,

> throws '/mnt/etc/config.scm:40:1 error: invalid field specifier'.

Your config file at line 40 contains this form:

 (services (append (list =E2=80=A6 =E2=80=A6 some-list))
           %base-services)

The format is wrong.  What I called =E2=80=9Csome-list=E2=80=9D is this:

  (remove (lambda (service)
           (eq? (service-kind service) gdm-service-type))
          %desktop-services)

This is a list of services.  You are nesting lists and that=E2=80=99s not w=
hat
=E2=80=9Cservices=E2=80=9D accepts.  The field only accepts a single list o=
f services.

Another problem is =E2=80=9C%base-services=E2=80=9D, which is another list.=
  You are
providing two values for the =E2=80=9Cservices=E2=80=9D field: one nested l=
ist and a
plain list of services (%base-services).

This will work:

 (services (append
            ;; This is a simple list of services.  It=E2=80=99s the first
            ;; argument to =E2=80=9Cappend=E2=80=9D.
	        (list (service dhcp-client-service-type)
		          (service slim-service-type (slim-configuration
                                              (display ":0")
                                              (vt "vt7")))
                  (service slim-service-type (slim-configuration
                                              (display ":1")
                                              (vt "vt8"))))
            ;; This is the second argument to =E2=80=9Cappend=E2=80=9D.  It=
=E2=80=99s just a
            ;; simple list of services, same as %desktop-services but
            ;; without the gdm-service-type.
            (remove (lambda (service)
                      (eq? (service-kind service) gdm-service-type))
                    %desktop-services)))


--=20
Ricardo