gnu: image: Build partitions with only necessary inputs.

* gnu/system/image.scm (system-disk-image)[partition-image]: Adjust the
inputs used by the image-builder to only use the packages necessary to
build that partition.

1 files changed, 8 insertions, 1 deletions

diff --git a/gnu/system/image.scm b/gnu/system/image.scm
index 958ba5cbb2..81346495c2 100644
--- a/gnu/system/image.scm
+++ b/gnu/system/image.scm
@@ -418,7 +418,14 @@ used in the image."
               (with-imported-modules*
                (let ((initializer (or #$(partition-initializer partition)
                                       initialize-root-partition))
-                     (inputs '#+(list e2fsprogs fakeroot dosfstools mtools))
+                     (inputs '#+(cond
+                                  ((string-prefix? "ext" type)
+                                   (list e2fsprogs fakeroot))
+                                  ((or (string=? type "vfat")
+                                       (string-prefix? "fat" type))
+                                   (list dosfstools fakeroot mtools))
+                                  (else
+                                    '())))
                      (image-root "tmp-root"))
                  (sql-schema #$schema)