Ought to admit Youtube as a resource where I've got help.
Here it is: https://www.youtube.com/watch?v=fKXrGfDnUCk
The main problem is to get configuration file. Lahcen Agchar's video solved
for me. Also video gived me idea how to part disk.
I have GuixSD with XFCE, when I tried different typing to change xfce to
LXDE I could not. But I know there are not only XFCE, but LXDE and others.
This is my /etc/config.scm
$ cat /etc/config.scm
;; This is an operating system configuration template
;; for a "desktop" setup with GNOME and Xfce where the
;; root partition is encrypted with LUKS.
(use-modules (gnu) (gnu system nss))
(use-service-modules desktop)
(use-package-modules certs gnome)
(operating-system
(host-name "antelope")
(timezone "Europe/Moscow")
(locale "en_US.utf8")
;; Use the UEFI variant of GRUB with the EFI System
;; Partition mounted on /boot/efi.
(bootloader (bootloader-configuration
(bootloader grub-bootloader)
(target "/dev/sda")))
;; Specify a mapped device for the encrypted root partition.
;; The UUID is that returned by 'cryptsetup luksUUID'.
;(mapped-devices
; (list (mapped-device
; (source (uuid "12345678-1234-1234-1234-123456789abc"))
; (target "my-root")
; (type luks-device-mapping))))
(file-systems (cons (file-system
(device "/dev/sda1")
(mount-point "/")
(type "ext4")
)
%base-file-systems))
(swap-devices '("/dev/sda2"))
(users (cons (user-account
(name "znavko")
(comment "zna vko")
(group "users")
(supplementary-groups '("wheel" "netdev"
"audio" "video"))
(home-directory "/home/znavko"))
%base-user-accounts))
;; This is where we specify system-wide packages.
(packages (cons* nss-certs ;for HTTPS access
gvfs ;for user mounts
%base-packages))
;; Add GNOME and/or Xfce---we can choose at the log-in
;; screen with F1. Use the "desktop" services, which
;; include the X11 log-in service, networking with
;; NetworkManager, and more.
(services (cons* (xfce-desktop-service)
%desktop-services))
;; Allow resolution of '.local' host names with mDNS.
(name-service-switch %mdns-host-lookup-nss))
