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-rw-r--r--gnu/system/image.scm5
1 files changed, 4 insertions, 1 deletions
diff --git a/gnu/system/image.scm b/gnu/system/image.scm
index 5972a944d7..f1739a35c1 100644
--- a/gnu/system/image.scm
+++ b/gnu/system/image.scm
@@ -842,7 +842,10 @@ image, depending on IMAGE format."
;; This happens if some limits are exceeded, see:
;; https://lists.gnu.org/archive/html/grub-devel/2020-06/msg00048.html
#:grub-mkrescue-environment
- '(("MKRESCUE_SED_MODE" . "mbr_only"))))))))
+ '(("MKRESCUE_SED_MODE" . "mbr_only"))))
+ (else
+ (raise (formatted-message
+ (G_ "~a: unsupported image format") image-format)))))))
;;