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-rw-r--r--guix/scripts/system.scm3
1 files changed, 3 insertions, 0 deletions
diff --git a/guix/scripts/system.scm b/guix/scripts/system.scm
index 7c0dde9030..056c8e6d30 100644
--- a/guix/scripts/system.scm
+++ b/guix/scripts/system.scm
@@ -199,6 +199,9 @@ it atomically, and then run OS's activation script."
;; The activation script may change $PATH, among others, so protect
;; against that.
(return (save-environment-excursion
+ ;; Tell 'activate-current-system' what the new system is.
+ (setenv "GUIX_NEW_SYSTEM" system)
+
(primitive-load (derivation->output-path script))))
;; TODO: Run 'deco reload ...'.