diff --git a/milkymist-files/data/m1/conf/config.minimal b/milkymist-files/data/m1/conf/config.minimal
index b19fa44..9ae68a0 100644
--- a/milkymist-files/data/m1/conf/config.minimal
+++ b/milkymist-files/data/m1/conf/config.minimal
@@ -7,11 +7,17 @@ CONFIG_TARGET_lm32=y
 CONFIG_TARGET_lm32_Default=y
 CONFIG_LINUX_3_0=y
 
+CONFIG_BIG_ENDIAN=y
+CONFIG_USES_EXT4=y
 CONFIG_NOMMU=y
+CONFIG_BINFMT_FLAT=y
 CONFIG_lm32=y
 
+CONFIG_TARGET_ROOTFS_EXT4FS=y
+
 # CONFIG_BUILD_PATENTED is not set
 
 CONFIG_SDK=y
 
 CONFIG_BUSYBOX_CONFIG_NOMMU=y
+CONFIG_BUSYBOX_CONFIG_EXTRA_CFLAGS="-Wl,-elf2flt"