bug#39941: Disk-image size increase on core-updates.

[Mathieu Othacehe <m.othacehe@gmail.com>]

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Hello,

When building the attached operating-system (very close to
bare-bones.tmpl) with the following command:

guix system disk-image --target=aarch64-linux-gnu mini.scm --no-grafts

the produced disk-image weights 2.6G (2717242368 bytes). On the same
branch in January it was around 1.5G.

I'll check the same command for a native x86_64 system and report back.

Mathieu

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(use-modules (gnu)
             (gnu bootloader u-boot)
             (srfi srfi-1))
(use-service-modules networking)

(operating-system
  (host-name "vignemale")
  (timezone "Europe/Paris")
  (locale "en_US.utf8")

  (bootloader (bootloader-configuration
               (bootloader u-boot-pine64-lts-bootloader)
               (target "/dev/vda")))

  (kernel-arguments '())
  (initrd-modules
   (cons* "sunxi-mmc"
          "sd_mod"
          "axp20x-rsb"
          "axp20x-regulator"
          %base-initrd-modules))

  (file-systems (cons (file-system
                        (device (file-system-label "my-root"))
                        (mount-point "/")
                        (type "ext4"))
                      %base-file-systems))

  (users (cons (user-account
                (name "mathieu")
                (group "users")
                (supplementary-groups '("wheel" "audio" "video")))
               %base-user-accounts))

  (packages %base-packages)
  (services (cons (service agetty-service-type
                           (agetty-configuration
                            (extra-options '("-L")) ; no carrier detect
                            (baud-rate "115200")
                            (term "vt100")
                            (tty "ttyS0")))
                  %base-services)))