Index: boot/arch/abs32le/Makefile.inc
===================================================================
--- boot/arch/abs32le/Makefile.inc	(revision 41408d9416b973ae77a095adf3dc309772bd1c56)
+++ boot/arch/abs32le/Makefile.inc	(revision 28fcaeee0e558ade40f886ba1cb2fe6acbbbd253)
@@ -31,4 +31,3 @@
 JOB =
 MAP =
-PREBUILD =
 BUILD = Makefile.empty
Index: boot/arch/amd64/Makefile.inc
===================================================================
--- boot/arch/amd64/Makefile.inc	(revision 41408d9416b973ae77a095adf3dc309772bd1c56)
+++ boot/arch/amd64/Makefile.inc	(revision 28fcaeee0e558ade40f886ba1cb2fe6acbbbd253)
@@ -27,7 +27,4 @@
 #
 
-RD_DRV_CFG += \
-	bus/isa
-
 POST_OUTPUT = $(ROOT_PATH)/image.iso
 BUILD = Makefile.empty
Index: boot/arch/amd64/meson.build
===================================================================
--- boot/arch/amd64/meson.build	(revision 28fcaeee0e558ade40f886ba1cb2fe6acbbbd253)
+++ boot/arch/amd64/meson.build	(revision 28fcaeee0e558ade40f886ba1cb2fe6acbbbd253)
@@ -0,0 +1,4 @@
+POST_OUTPUT = 'image.iso'
+BUILD = false
+POSTBUILD = 'grub'
+GRUB_LOADER = 'multiboot'