diff --git a/board/businesscard/v1/genimage.cfg b/board/businesscard/v1/genimage.cfg
index ec9e29d..3b25b07 100644
--- a/board/businesscard/v1/genimage.cfg
+++ b/board/businesscard/v1/genimage.cfg
@@ -51,33 +51,3 @@ image root.ubi {
 		image = persist.ubifs
 	}
 }
-
-image boot.vfat {
-	vfat {
-		files = {
-			"zImage",
-			"businesscard.dtb",
-			"rootfs.squashfs"
-		}
-	}
-	size = 16M
-}
-
-image sdcard.img {
-	hdimage {}
-	partition u-boot {
-		in-partition-table = "no"
-		image = "u-boot-sunxi-with-spl.bin"
-		offset = 8192
-		size = 516096 # 512KB - 8192
-	}
-	partition boot {
-		partition-type = 0xc
-		bootable = "true"
-		image = "boot.vfat"
-	}
-	partition rootfs {
-		partition-type = 0x83
-		image = "rootfs.ext4"
-	}
-}
diff --git a/configs/thirtythreeforty_businesscard_defconfig b/configs/thirtythreeforty_businesscard_defconfig
index 2ad917f..36c2bd5 100644
--- a/configs/thirtythreeforty_businesscard_defconfig
+++ b/configs/thirtythreeforty_businesscard_defconfig
@@ -41,8 +41,6 @@ BR2_PACKAGE_MICROPYTHON=y
 BR2_PACKAGE_MICROPYTHON_LIB=y
 BR2_PACKAGE_LIBTIRPC=y
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
-BR2_TARGET_ROOTFS_EXT2=y
-BR2_TARGET_ROOTFS_EXT2_4=y
 BR2_TARGET_ROOTFS_SQUASHFS=y
 BR2_TARGET_ROOTFS_SQUASHFS4_XZ=y
 # BR2_TARGET_ROOTFS_TAR is not set