diff --git a/conf/buildroot_initramfs_config b/conf/buildroot_initramfs_config
index bf2a6d3..ab434d3 100644
--- a/conf/buildroot_initramfs_config
+++ b/conf/buildroot_initramfs_config
@@ -7,13 +7,9 @@ BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_6=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
 # BR2_TOOLCHAIN_EXTERNAL_INET_RPC is not set
 BR2_TOOLCHAIN_EXTERNAL_CXX=y
-BR2_TARGET_ROOTFS_EXT2=y
-BR2_TARGET_ROOTFS_EXT2_2r1=y
-BR2_PACKAGE_DROPBEAR=y
-BR2_PACKAGE_DROPBEAR_CLIENT=y
-BR2_PACKAGE_DROPBEAR_SMALL=y
-BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS=y
 BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV=y
 BR2_TARGET_GENERIC_ROOT_PASSWD="sifive"
 BR2_SYSTEM_DHCP="eth0"
 BR2_PACKAGE_PCIUTILS=y
+BR2_PACKAGE_DROPBEAR=y
+BR2_PACKAGE_HOST_MKE2IMG=y