installer: Add "Kernel" page to select the Hurd.

This adds a "Kernel" page to the installer with the option to (cross-) install
the Hurd, if applicable (only available on x86 machines for now).

* gnu/installer/newt.scm (kernel-page): New procedure.
(newt-installer)[kernel-page]: New field.
* gnu/installer/kernel.scm,
gnu/installer/newt/kernel.scm: New files.
* gnu/local.mk (INSTALLER_MODULES): Add them.
* gnu/installer.scm (installer-steps): Use them to select kernel if
applicable.
* gnu/installer/newt/partition.scm (run-label-page): Default to "msdos" when
instaling the Hurd.
(run-fs-type-page): Add ext2 for the hurd.
(run-partitioning-page-partition): Remove `entire-encrypted' option when
installing the Hurd.
* gnu/installer/services.scm (system-services->configuration): Cater for the
Hurd with %base-services/hurd, and with %base-packages/hurd that must always
be set.
(%system-services): Change to procedure.  When installing the the Hurd, do not
recommend `ntp-service-type' and USE `openssh-sans-x' package for
`openssh-service-type'.
(system-service-none): New variable.
* gnu/installer/newt/services.scm (run-network-management-page): Include it
when installing the Hurd.
(run-desktop-environments-cbt-page): When installing the Hurd, recommend to
not select any desktop enviroment.  Update users.
* gnu/installer/parted.scm (efi-installation?): Return #f when installing for
the Hurd.
(create-ext2-file-system): New procedure.
(user-fs-type-name, user-fs-type->mount-type, partition-filesystem-user-type,
format-user-partitions): Support `ext2'.
(<user-partition> partition->user-partition): Use `ext2' when installing the
Hurd.
(auto-partition!): Likewise.  No swap partition when installing the Hurd.
* gnu/installer/final.scm (install-system): Cater for cross installation of
the Hurd.
(bootloader-configuration): Use `grub-minimal-bootloader' when installing the
Hurd.
(user-partition-missing-modules): Cater for empty user-partitions.
(initrd-configuration, user-partitions->configuration): Cater for the Hurd.
* gnu/installer/steps.scm (format-configuration,
configuration->file): Cater for the Hurd.
* gnu/system/hurd.scm (%desktop-services/hurd): New variable.
* gnu/installer/tests.scm (choose-kernel): New procedure.
* gnu/tests/install.scm (gui-test-program): Use it.

Change-Id: Ifafb27b8a2f933944c77223a27ec151757237e36

1 files changed, 45 insertions, 0 deletions

diff --git a/gnu/installer/newt/kernel.scm b/gnu/installer/newt/kernel.scm
new file mode 100644
index 0000000000..3117247312
--- /dev/null
+++ b/gnu/installer/newt/kernel.scm
@@ -0,0 +1,45 @@
+;;; GNU Guix --- Functional package management for GNU
+;;; Copyright © 2024 Janneke Nieuwenhuizen <janneke@gnu.org>
+;;;
+;;; This file is part of GNU Guix.
+;;;
+;;; GNU Guix is free software; you can redistribute it and/or modify it
+;;; under the terms of the GNU General Public License as published by
+;;; the Free Software Foundation; either version 3 of the License, or (at
+;;; your option) any later version.
+;;;
+;;; GNU Guix is distributed in the hope that it will be useful, but
+;;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;;; GNU General Public License for more details.
+;;;
+;;; You should have received a copy of the GNU General Public License
+;;; along with GNU Guix.  If not, see <http://www.gnu.org/licenses/>.
+
+(define-module (gnu installer newt kernel)
+  #:use-module (gnu installer newt page)
+  #:use-module (guix i18n)
+  #:use-module (guix utils)
+  #:export (run-kernel-page))
+
+(define (run-kernel-page)
+  (let* ((kernels `(,@(if (target-x86?) '("Hurd") '())
+                    "Linux Libre"))
+         (result
+          (run-listbox-selection-page
+           #:title (G_ "Kernel")
+           #:info-text
+           (G_ "Please select a kernel.  When in doubt, choose \"Linux Libre\".
+The Hurd is offered as a technology preview and development aid; many packages \
+are not yet available in Guix, such as a desktop environment or even a windowing \
+system (X, Wayland).")
+           #:listbox-items kernels
+           #:listbox-item->text identity
+           #:listbox-default-item "Linux Libre"
+           #:button-text (G_ "Back")
+           #:button-callback-procedure
+           (lambda _
+             (abort-to-prompt 'installer-step 'abort)))))
+    (when (equal? result "Hurd")
+      (%current-target-system "i586-pc-gnu"))
+    result))