1 files changed, 16 insertions, 11 deletions
diff --git a/guix/scripts/system/reconfigure.scm b/guix/scripts/system/reconfigure.scm
index 8c7d461585..579b7fffbe 100644
--- a/guix/scripts/system/reconfigure.scm
+++ b/guix/scripts/system/reconfigure.scm
@@ -161,12 +161,7 @@ services as defined by OS."
                                              target-services)
                                         (map live-service-canonical-name
                                              live-services)))
-             (service-files
-              (map shepherd-service-file
-                   (filter (lambda (service)
-                             (memq (shepherd-service-canonical-name service)
-                                   to-start))
-                           target-services))))
+             (service-files (map shepherd-service-file target-services)))
         (eval #~(primitive-load #$(upgrade-services-program service-files
                                                             to-start
                                                             to-unload
@@ -200,21 +195,31 @@ BOOTLOADER-PACKAGE."
                         (srfi srfi-34)
                         (srfi srfi-35))
            (let* ((gc-root (string-append #$target %gc-roots-directory "/bootcfg"))
-                  (temp-gc-root (string-append gc-root ".new")))
-             (switch-symlinks temp-gc-root gc-root)
-             (install-boot-config #$bootcfg #$bootcfg-file #$target)
+                  (new-gc-root (string-append gc-root ".new")))
+             ;; #$bootcfg has dependencies.
+             ;; The bootloader magically loads the configuration from
+             ;; (string-append #$target #$bootcfg-file) (for example
+             ;; "/boot/grub/grub.cfg").
+             ;; If we didn't do something special, the garbage collector
+             ;; would remove the dependencies of #$bootcfg.
+             ;; Register #$bootcfg as a GC root.
              ;; Preserve the previous activation's garbage collector root
              ;; until the bootloader installer has run, so that a failure in
              ;; the bootloader's installer script doesn't leave the user with
              ;; a broken installation.
+             (switch-symlinks new-gc-root #$bootcfg)
+             (install-boot-config #$bootcfg #$bootcfg-file #$target)
              (when #$installer
                (catch #t
                  (lambda ()
                    (#$installer #$bootloader-package #$device #$target))
                  (lambda args
-                   (delete-file temp-gc-root)
+                   (delete-file new-gc-root)
                    (apply throw args))))
-             (rename-file temp-gc-root gc-root)))))))
+             ;; We are sure that the installation of the bootloader
+             ;; succeeded, so we can replace the old GC root by the new
+             ;; GC root now.
+             (rename-file new-gc-root gc-root)))))))
 
 (define* (install-bootloader eval configuration bootcfg
                              #:key