diff --git a/buildroot-2024.02/configs/milkv-duo256m-musl-riscv64-sd_defconfig b/buildroot-2024.02/configs/milkv-duo256m-musl-riscv64-sd_defconfig
index 58032b4bd..801eedd35 100644
--- a/buildroot-2024.02/configs/milkv-duo256m-musl-riscv64-sd_defconfig
+++ b/buildroot-2024.02/configs/milkv-duo256m-musl-riscv64-sd_defconfig
@@ -1,502 +1,28 @@
-#
-# Automatically generated file; DO NOT EDIT.
-# Buildroot -g1be3541b7-dirty Configuration
-#
-BR2_HAVE_DOT_CONFIG=y
-BR2_HOST_GCC_AT_LEAST_4_9=y
-BR2_HOST_GCC_AT_LEAST_5=y
-BR2_HOST_GCC_AT_LEAST_6=y
-BR2_HOST_GCC_AT_LEAST_7=y
-BR2_HOST_GCC_AT_LEAST_8=y
-BR2_HOST_GCC_AT_LEAST_9=y
-
-#
-# Target options
-#
-BR2_ARCH_IS_64=y
-BR2_USE_MMU=y
 BR2_riscv=y
-BR2_ARCH_HAS_TOOLCHAIN_BUILDROOT=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_4_9=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_5=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_6=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_7=y
-BR2_ARCH="riscv64"
-BR2_NORMALIZED_ARCH="riscv"
-BR2_ENDIAN="LITTLE"
-BR2_GCC_TARGET_ABI="lp64d"
-BR2_BINFMT_SUPPORTS_SHARED=y
-BR2_READELF_ARCH_NAME="RISC-V"
-BR2_riscv_g=y
-# BR2_riscv_custom is not set
-
-#
-# Instruction Set Extensions
-#
-BR2_RISCV_ISA_RVI=y
-BR2_RISCV_ISA_RVM=y
-BR2_RISCV_ISA_RVA=y
-BR2_RISCV_ISA_RVF=y
-BR2_RISCV_ISA_RVD=y
-# BR2_RISCV_ISA_RVC is not set
-# BR2_RISCV_ISA_RVV is not set
-# BR2_RISCV_32 is not set
-BR2_RISCV_64=y
-BR2_RISCV_USE_MMU=y
-# BR2_RISCV_ABI_LP64 is not set
-# BR2_RISCV_ABI_LP64F is not set
-BR2_RISCV_ABI_LP64D=y
-BR2_BINFMT_ELF=y
-
-#
-# Toolchain
-#
-BR2_TOOLCHAIN=y
-BR2_TOOLCHAIN_USES_MUSL=y
-# BR2_TOOLCHAIN_BUILDROOT is not set
 BR2_TOOLCHAIN_EXTERNAL=y
-
-#
-# Toolchain External Options
-#
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
-# BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD is not set
-BR2_TOOLCHAIN_EXTERNAL_PREINSTALLED=y
 BR2_TOOLCHAIN_EXTERNAL_PATH="$(TOPDIR)/../host-tools/gcc/riscv64-linux-musl-x86_64"
-BR2_TOOLCHAIN_EXTERNAL_MUSL=y
-BR2_PACKAGE_HAS_TOOLCHAIN_EXTERNAL=y
-BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL="toolchain-external-custom"
-BR2_TOOLCHAIN_EXTERNAL_PREFIX="riscv64-unknown-linux-musl"
-BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARCH_SUPPORTS=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="riscv64-unknown-linux-musl"
 BR2_TOOLCHAIN_EXTERNAL_GCC_10=y
 BR2_TOOLCHAIN_EXTERNAL_HEADERS_5_10=y
-# BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC is not set
-# BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC is not set
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_MUSL=y
-BR2_TOOLCHAIN_EXTERNAL_HAS_SSP=y
-BR2_TOOLCHAIN_EXTERNAL_HAS_SSP_STRONG=y
 BR2_TOOLCHAIN_EXTERNAL_CXX=y
-# BR2_TOOLCHAIN_EXTERNAL_DLANG is not set
-# BR2_TOOLCHAIN_EXTERNAL_FORTRAN is not set
 BR2_TOOLCHAIN_EXTERNAL_OPENMP=y
-# BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY is not set
-BR2_PACKAGE_HOST_GDB_ARCH_SUPPORTS=y
-
-#
-# Host GDB Options
-#
-# BR2_PACKAGE_HOST_GDB is not set
-BR2_GDB_VERSION="13.2"
-
-#
-# Toolchain Generic Options
-#
-BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS=y
-BR2_TOOLCHAIN_SUPPORTS_VARIADIC_MI_THUNK=y
-BR2_USE_WCHAR=y
-BR2_ENABLE_LOCALE=y
-BR2_INSTALL_LIBSTDCPP=y
-BR2_TOOLCHAIN_HAS_THREADS=y
-BR2_TOOLCHAIN_HAS_THREADS_DEBUG=y
-BR2_TOOLCHAIN_HAS_THREADS_NPTL=y
-BR2_TOOLCHAIN_HAS_SSP=y
-BR2_TOOLCHAIN_HAS_SSP_STRONG=y
-BR2_TOOLCHAIN_HAS_OPENMP=y
-BR2_TOOLCHAIN_SUPPORTS_PIE=y
-BR2_TOOLCHAIN_EXTRA_LIBS=""
-BR2_TARGET_OPTIMIZATION=""
 BR2_TARGET_LDFLAGS="-march=rv64imafdcv0p7xthead -mcpu=c906fdv -mabi=lp64d -mcmodel=medany"
-# BR2_ECLIPSE_REGISTER is not set
-BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_10=y
-BR2_TOOLCHAIN_HEADERS_AT_LEAST="5.10"
-BR2_TOOLCHAIN_GCC_AT_LEAST_10=y
-BR2_TOOLCHAIN_GCC_AT_LEAST="10"
-BR2_TOOLCHAIN_HAS_MNAN_OPTION=y
-BR2_TOOLCHAIN_HAS_SYNC_1=y
-BR2_TOOLCHAIN_HAS_SYNC_2=y
-BR2_TOOLCHAIN_HAS_SYNC_4=y
-BR2_TOOLCHAIN_HAS_SYNC_8=y
-BR2_TOOLCHAIN_HAS_LIBATOMIC=y
-BR2_TOOLCHAIN_HAS_ATOMIC=y
-
-#
-# Build options
-#
-
-#
-# Commands
-#
-BR2_WGET="wget --passive-ftp -nd -t 3"
-BR2_SVN="svn --non-interactive"
-BR2_BZR="bzr"
-BR2_GIT="git"
-BR2_CVS="cvs"
-BR2_LOCALFILES="cp"
-BR2_SCP="scp"
-BR2_SFTP="sftp"
-BR2_HG="hg"
-BR2_ZCAT="gzip -d -c"
-BR2_BZCAT="bzcat"
-BR2_XZCAT="xzcat"
-BR2_LZCAT="lzip -d -c"
-BR2_TAR_OPTIONS=""
-BR2_DEFCONFIG="./configs/milkv-duo256m-musl-riscv64-sd_defconfig"
-BR2_DL_DIR="$(TOPDIR)/dl"
-BR2_HOST_DIR="$(BASE_DIR)/host"
-
-#
-# Mirrors and Download locations
-#
-BR2_PRIMARY_SITE=""
-BR2_BACKUP_SITE="http://sources.buildroot.net"
-BR2_KERNEL_MIRROR="https://cdn.kernel.org/pub"
-BR2_GNU_MIRROR="http://ftpmirror.gnu.org"
-BR2_LUAROCKS_MIRROR="http://rocks.moonscript.org"
-BR2_CPAN_MIRROR="http://cpan.metacpan.org"
-BR2_JLEVEL=0
-# BR2_CCACHE is not set
-# BR2_ENABLE_DEBUG is not set
-# BR2_ENABLE_RUNTIME_DEBUG is not set
-BR2_STRIP_strip=y
-BR2_STRIP_EXCLUDE_FILES=""
-BR2_STRIP_EXCLUDE_DIRS=""
-# BR2_OPTIMIZE_0 is not set
-# BR2_OPTIMIZE_1 is not set
-# BR2_OPTIMIZE_2 is not set
-# BR2_OPTIMIZE_3 is not set
-# BR2_OPTIMIZE_G is not set
 BR2_OPTIMIZE_S=y
-# BR2_OPTIMIZE_FAST is not set
-# BR2_ENABLE_LTO is not set
-# BR2_STATIC_LIBS is not set
-BR2_SHARED_LIBS=y
-# BR2_SHARED_STATIC_LIBS is not set
-BR2_PACKAGE_OVERRIDE_FILE="$(CONFIG_DIR)/local.mk"
-BR2_GLOBAL_PATCH_DIR=""
-
-#
-# Advanced
-#
-# BR2_FORCE_HOST_BUILD is not set
-# BR2_DOWNLOAD_FORCE_CHECK_HASHES is not set
-# BR2_REPRODUCIBLE is not set
-# BR2_PER_PACKAGE_DIRECTORIES is not set
-
-#
-# Security Hardening Options
-#
-BR2_PIC_PIE_ARCH_SUPPORTS=y
-BR2_PIC_PIE=y
-# BR2_SSP_NONE is not set
-# BR2_SSP_REGULAR is not set
-BR2_SSP_STRONG=y
-# BR2_SSP_ALL is not set
-BR2_SSP_OPTION="-fstack-protector-strong"
-# BR2_RELRO_NONE is not set
-# BR2_RELRO_PARTIAL is not set
-BR2_RELRO_FULL=y
-BR2_FORTIFY_SOURCE_ARCH_SUPPORTS=y
-
-#
-# Fortify Source needs a glibc toolchain and optimization
-#
-
-#
-# System configuration
-#
-BR2_ROOTFS_SKELETON_DEFAULT=y
-# BR2_ROOTFS_SKELETON_CUSTOM is not set
 BR2_TARGET_GENERIC_HOSTNAME="milkv-duo"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Milk-V Duo256M SD"
-BR2_TARGET_GENERIC_PASSWD_SHA256=y
-# BR2_TARGET_GENERIC_PASSWD_SHA512 is not set
-BR2_TARGET_GENERIC_PASSWD_METHOD="sha-256"
-BR2_INIT_BUSYBOX=y
-# BR2_INIT_SYSV is not set
-# BR2_INIT_OPENRC is not set
-
-#
-# systemd needs a glibc toolchain w/ SSP, headers >= 4.14, host and target gcc >= 5
-#
-# BR2_INIT_NONE is not set
-# BR2_ROOTFS_DEVICE_CREATION_STATIC is not set
-BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS=y
-# BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV is not set
-# BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV is not set
-BR2_ROOTFS_DEVICE_TABLE="system/device_table.txt"
-# BR2_ROOTFS_DEVICE_TABLE_SUPPORTS_EXTENDED_ATTRIBUTES is not set
-# BR2_ROOTFS_MERGED_USR is not set
-BR2_TARGET_ENABLE_ROOT_LOGIN=y
 BR2_TARGET_GENERIC_ROOT_PASSWD="milkv"
-BR2_SYSTEM_BIN_SH_BUSYBOX=y
-
-#
-# bash, dash, mksh, zsh need BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
-#
-# BR2_SYSTEM_BIN_SH_NONE is not set
-BR2_TARGET_GENERIC_GETTY=y
-BR2_TARGET_GENERIC_GETTY_PORT="console"
-BR2_TARGET_GENERIC_GETTY_BAUDRATE_KEEP=y
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_9600 is not set
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_19200 is not set
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_38400 is not set
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_57600 is not set
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200 is not set
-BR2_TARGET_GENERIC_GETTY_BAUDRATE="0"
-BR2_TARGET_GENERIC_GETTY_TERM="vt100"
-BR2_TARGET_GENERIC_GETTY_OPTIONS=""
-BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW=y
-BR2_SYSTEM_DHCP=""
-BR2_SYSTEM_DEFAULT_PATH="/bin:/sbin:/usr/bin:/usr/sbin"
-BR2_ENABLE_LOCALE_PURGE=y
-BR2_ENABLE_LOCALE_WHITELIST="C en_US"
-# BR2_SYSTEM_ENABLE_NLS is not set
-# BR2_TARGET_TZ_INFO is not set
-BR2_ROOTFS_USERS_TABLES=""
 BR2_ROOTFS_OVERLAY="board/milkv/milkv-duo256m-musl-riscv64-sd/overlay"
-BR2_ROOTFS_PRE_BUILD_SCRIPT=""
-BR2_ROOTFS_POST_BUILD_SCRIPT=""
-BR2_ROOTFS_POST_FAKEROOT_SCRIPT=""
-BR2_ROOTFS_POST_IMAGE_SCRIPT=""
-
-#
-# Kernel
-#
-# BR2_LINUX_KERNEL is not set
-
-#
-# Target packages
-#
-BR2_PACKAGE_BUSYBOX=y
-BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox.config"
-BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES=""
-# BR2_PACKAGE_BUSYBOX_SHOW_OTHERS is not set
-# BR2_PACKAGE_BUSYBOX_INDIVIDUAL_BINARIES is not set
-# BR2_PACKAGE_BUSYBOX_WATCHDOG is not set
-BR2_PACKAGE_SKELETON=y
-BR2_PACKAGE_HAS_SKELETON=y
-BR2_PACKAGE_PROVIDES_SKELETON="skeleton-init-sysv"
-BR2_PACKAGE_SKELETON_INIT_COMMON=y
-BR2_PACKAGE_SKELETON_INIT_SYSV=y
-
-#
-# Audio and video applications
-#
-BR2_PACKAGE_FFMPEG_ARCH_SUPPORTS=y
-BR2_PACKAGE_KODI_ARCH_SUPPORTS=y
-
-#
-# dt needs a glibc or uClibc toolchain w/ threads
-#
-# BR2_PACKAGE_DUMA is not set
-# BR2_PACKAGE_FIO is not set
-BR2_PACKAGE_GDB_ARCH_SUPPORTS=y
 BR2_PACKAGE_GDB=y
-BR2_PACKAGE_GDB_SERVER=y
-# BR2_PACKAGE_GDB_DEBUGGER is not set
-# BR2_PACKAGE_IOZONE is not set
-# BR2_PACKAGE_LATENCYTOP is not set
-# BR2_PACKAGE_LIBBPF is not set
-# BR2_PACKAGE_LIBTRACEEVENT is not set
-# BR2_PACKAGE_LIBTRACEFS is not set
-# BR2_PACKAGE_LMBENCH is not set
-BR2_PACKAGE_LTP_TESTSUITE_ARCH_SUPPORTS=y
-# BR2_PACKAGE_LTTNG_BABELTRACE is not set
-
-
-#
-# nmon needs a glibc toolchain
-#
-# BR2_PACKAGE_PAX_UTILS is not set
-BR2_PACKAGE_PERFTEST_ARCH_SUPPORTS=y
-
-#
-# perftest needs a glibc or uClibc toolchain w/ threads, dynamic library
-#
-# BR2_PACKAGE_POKE is not set
-# BR2_PACKAGE_PV is not set
-# BR2_PACKAGE_RAMSMP is not set
-# BR2_PACKAGE_RAMSPEED is not set
-
-#
-# rt-tests needs a uClibc or glibc toolchain w/ NPTL, headers >= 4.5, dynamic library
-#
 BR2_PACKAGE_STRACE=y
-
-#
-# Development tools
-#
-BR2_PACKAGE_CMAKE_ARCH_SUPPORTS=y
-BR2_PACKAGE_PROVIDES_HOST_GETTEXT="host-gettext-tiny"
-
-#
-# Filesystem and flash utilities
-#
-# BR2_PACKAGE_ABOOTIMG is not set
-
-#
-# davfs2 needs a glibc toolchain
-#
-# BR2_PACKAGE_DOSFSTOOLS is not set
 BR2_PACKAGE_E2FSPROGS=y
-# BR2_PACKAGE_E2FSPROGS_DEBUGFS is not set
-# BR2_PACKAGE_E2FSPROGS_E2IMAGE is not set
-
-#
-# e2scrub needs bash, coreutils, lvm2, and util-linux
-#
-# BR2_PACKAGE_E2FSPROGS_E4DEFRAG is not set
-BR2_PACKAGE_E2FSPROGS_FSCK=y
-# BR2_PACKAGE_E2FSPROGS_FUSE2FS is not set
 BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
-
-#
-# eudev needs eudev /dev management
-#
-# BR2_PACKAGE_EVEMU is not set
 BR2_PACKAGE_EVTEST=y
-# BR2_PACKAGE_FAN_CTRL is not set
-# BR2_PACKAGE_FCONFIG is not set
-BR2_PACKAGE_FLASHROM_ARCH_SUPPORTS=y
-
-#
-# Compression and decompression
-#
-BR2_PACKAGE_PROVIDES_HOST_ZLIB="host-libzlib"
-# BR2_PACKAGE_ZZIPLIB is not set
-
-#
-# Crypto
-#
-# BR2_PACKAGE_BEARSSL is not set
-# BR2_PACKAGE_BEECRYPT is not set
-BR2_PACKAGE_BOTAN_ARCH_SUPPORTS=y
-# BR2_PACKAGE_BOTAN is not set
-# BR2_PACKAGE_CA_CERTIFICATES is not set
-
-#
-# cryptodev-linux needs a Linux kernel to be built
-#
-BR2_PACKAGE_LIBGPG_ERROR_ARCH_SUPPORTS=y
-# BR2_PACKAGE_LIBGPG_ERROR is not set
-BR2_PACKAGE_LIBGPG_ERROR_SYSCFG="riscv64-unknown-linux-gnu"
-BR2_PACKAGE_PROVIDES_HOST_OPENSSL="host-libopenssl"
-BR2_PACKAGE_WOLFSSL_ASM_SUPPORTS=y
-
-#
-# JSON/XML
-#
 BR2_PACKAGE_JSON_C=y
-
-#
-# Multimedia
-#
-BR2_PACKAGE_LIBCAMERA_ARCH_SUPPORTS=y
-# BR2_PACKAGE_LIBCAMERA is not set
-
-#
-
-#
-BR2_PACKAGE_MUSL_COMPAT_HEADERS=y
-# BR2_PACKAGE_MUSL_FTS is not set
-# BR2_PACKAGE_ORC is not set
-# BR2_PACKAGE_P11_KIT is not set
-BR2_PACKAGE_POCO_ARCH_SUPPORTS=y
-# BR2_PACKAGE_POCO is not set
-BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS=y
-# BR2_PACKAGE_PROTOBUF is not set
-# BR2_PACKAGE_PROTOBUF_C is not set
-
-#
-# vdr needs a glibc toolchain w/ C++, dynamic library, NPTL, wchar, headers >= 3.9
-#
-BR2_PACKAGE_WPA_SUPPLICANT=y
-BR2_PACKAGE_WPA_SUPPLICANT_NL80211=y
-BR2_PACKAGE_WPA_SUPPLICANT_CLI=y
-BR2_PACKAGE_WPA_SUPPLICANT_WPA_CLIENT_SO=y
-# BR2_PACKAGE_WPA_SUPPLICANT_PASSPHRASE is not set
-BR2_PACKAGE_WPA_SUPPLICANT_CTRL_IFACE=y
-# BR2_PACKAGE_WPA_SUPPLICANT_DBUS is not set
-
-#
-# emlog needs a Linux kernel to be built
-#
-BR2_PACKAGE_INITSCRIPTS=y
-
-#
-# iotop depends on python3
-#
-# BR2_PACKAGE_IPRUTILS is not set
-# BR2_PACKAGE_IRQBALANCE is not set
-# BR2_PACKAGE_KEYUTILS is not set
 BR2_PACKAGE_KMOD=y
-
-#
-# unscd needs a glibc toolchain
-#
-BR2_PACKAGE_UTIL_LINUX=y
-BR2_PACKAGE_UTIL_LINUX_LIBBLKID=y
-# BR2_PACKAGE_UTIL_LINUX_LIBFDISK is not set
-# BR2_PACKAGE_UTIL_LINUX_LIBMOUNT is not set
-# BR2_PACKAGE_UTIL_LINUX_LIBSMARTCOLS is not set
-BR2_PACKAGE_UTIL_LINUX_LIBUUID=y
-
-#
-# su needs a uClibc or glibc toolchain w/ wchar, locale, dynamic library, gcc >= 4.9
-#
-BR2_PACKAGE_UTIL_LINUX_UUIDD=y
-
-#
-# Filesystem images
-#
 BR2_TARGET_ROOTFS_EXT2=y
-# BR2_TARGET_ROOTFS_EXT2_2r0 is not set
-# BR2_TARGET_ROOTFS_EXT2_2r1 is not set
-# BR2_TARGET_ROOTFS_EXT2_3 is not set
 BR2_TARGET_ROOTFS_EXT2_4=y
-BR2_TARGET_ROOTFS_EXT2_GEN=4
-BR2_TARGET_ROOTFS_EXT2_REV=1
-BR2_TARGET_ROOTFS_EXT2_LABEL="rootfs"
 BR2_TARGET_ROOTFS_EXT2_SIZE="786432K"
-BR2_TARGET_ROOTFS_EXT2_INODES=0
-BR2_TARGET_ROOTFS_EXT2_RESBLKS=5
-BR2_TARGET_ROOTFS_EXT2_MKFS_OPTIONS="-O ^64bit"
-BR2_TARGET_ROOTFS_EXT2_NONE=y
-
-#
-# initramfs needs a Linux kernel to be built
-#
-BR2_TARGET_ROOTFS_TAR=y
 BR2_TARGET_ROOTFS_TAR_XZ=y
-BR2_TARGET_ROOTFS_TAR_OPTIONS=""
-
-#
-# Host utilities
-#
-BR2_PACKAGE_HOST_E2FSPROGS=y
 BR2_PACKAGE_HOST_GENIMAGE=y
-BR2_PACKAGE_HOST_UTIL_LINUX=y
-
-#
-# Legacy options removed in 2019.11
-#
-BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS=""
-
-#
-# Legacy options removed in 2017.08
-#
-# BR2_TARGET_GRUB is not set
-# BR2_PACKAGE_SIMICSFS is not set
-# BR2_BINUTILS_VERSION_2_26_X is not set
-BR2_XTENSA_OVERLAY_DIR=""
-BR2_XTENSA_CUSTOM_NAME=""
-# BR2_PACKAGE_HOST_MKE2IMG is not set
-BR2_TARGET_ROOTFS_EXT2_BLOCKS=0
-BR2_TARGET_ROOTFS_EXT2_EXTRA_INODES=0
-
-#
-# Legacy options removed in 2017.05
-#
-BR2_TARGET_ROOTFS_EXT2_EXTRA_BLOCKS=0
diff --git a/buildroot-2024.02/configs/milkv-duos-musl-riscv64-sd_defconfig b/buildroot-2024.02/configs/milkv-duos-musl-riscv64-sd_defconfig
index 57e9d355e..f43d8acdd 100644
--- a/buildroot-2024.02/configs/milkv-duos-musl-riscv64-sd_defconfig
+++ b/buildroot-2024.02/configs/milkv-duos-musl-riscv64-sd_defconfig
@@ -1,502 +1,28 @@
-#
-# Automatically generated file; DO NOT EDIT.
-# Buildroot -g1be3541b7-dirty Configuration
-#
-BR2_HAVE_DOT_CONFIG=y
-BR2_HOST_GCC_AT_LEAST_4_9=y
-BR2_HOST_GCC_AT_LEAST_5=y
-BR2_HOST_GCC_AT_LEAST_6=y
-BR2_HOST_GCC_AT_LEAST_7=y
-BR2_HOST_GCC_AT_LEAST_8=y
-BR2_HOST_GCC_AT_LEAST_9=y
-
-#
-# Target options
-#
-BR2_ARCH_IS_64=y
-BR2_USE_MMU=y
 BR2_riscv=y
-BR2_ARCH_HAS_TOOLCHAIN_BUILDROOT=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_4_8=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_4_9=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_5=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_6=y
-BR2_ARCH_NEEDS_GCC_AT_LEAST_7=y
-BR2_ARCH="riscv64"
-BR2_NORMALIZED_ARCH="riscv"
-BR2_ENDIAN="LITTLE"
-BR2_GCC_TARGET_ABI="lp64d"
-BR2_BINFMT_SUPPORTS_SHARED=y
-BR2_READELF_ARCH_NAME="RISC-V"
-BR2_riscv_g=y
-# BR2_riscv_custom is not set
-
-#
-# Instruction Set Extensions
-#
-BR2_RISCV_ISA_RVI=y
-BR2_RISCV_ISA_RVM=y
-BR2_RISCV_ISA_RVA=y
-BR2_RISCV_ISA_RVF=y
-BR2_RISCV_ISA_RVD=y
-# BR2_RISCV_ISA_RVC is not set
-# BR2_RISCV_ISA_RVV is not set
-# BR2_RISCV_32 is not set
-BR2_RISCV_64=y
-BR2_RISCV_USE_MMU=y
-# BR2_RISCV_ABI_LP64 is not set
-# BR2_RISCV_ABI_LP64F is not set
-BR2_RISCV_ABI_LP64D=y
-BR2_BINFMT_ELF=y
-
-#
-# Toolchain
-#
-BR2_TOOLCHAIN=y
-BR2_TOOLCHAIN_USES_MUSL=y
-# BR2_TOOLCHAIN_BUILDROOT is not set
 BR2_TOOLCHAIN_EXTERNAL=y
-
-#
-# Toolchain External Options
-#
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
-# BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD is not set
-BR2_TOOLCHAIN_EXTERNAL_PREINSTALLED=y
 BR2_TOOLCHAIN_EXTERNAL_PATH="$(TOPDIR)/../host-tools/gcc/riscv64-linux-musl-x86_64"
-BR2_TOOLCHAIN_EXTERNAL_MUSL=y
-BR2_PACKAGE_HAS_TOOLCHAIN_EXTERNAL=y
-BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL="toolchain-external-custom"
-BR2_TOOLCHAIN_EXTERNAL_PREFIX="riscv64-unknown-linux-musl"
-BR2_TOOLCHAIN_EXTERNAL_BOOTLIN_ARCH_SUPPORTS=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="riscv64-unknown-linux-musl"
 BR2_TOOLCHAIN_EXTERNAL_GCC_10=y
 BR2_TOOLCHAIN_EXTERNAL_HEADERS_5_10=y
-# BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC is not set
-# BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC is not set
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_MUSL=y
-BR2_TOOLCHAIN_EXTERNAL_HAS_SSP=y
-BR2_TOOLCHAIN_EXTERNAL_HAS_SSP_STRONG=y
 BR2_TOOLCHAIN_EXTERNAL_CXX=y
-# BR2_TOOLCHAIN_EXTERNAL_DLANG is not set
-# BR2_TOOLCHAIN_EXTERNAL_FORTRAN is not set
 BR2_TOOLCHAIN_EXTERNAL_OPENMP=y
-# BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY is not set
-BR2_PACKAGE_HOST_GDB_ARCH_SUPPORTS=y
-
-#
-# Host GDB Options
-#
-# BR2_PACKAGE_HOST_GDB is not set
-BR2_GDB_VERSION="13.2"
-
-#
-# Toolchain Generic Options
-#
-BR2_TOOLCHAIN_SUPPORTS_ALWAYS_LOCKFREE_ATOMIC_INTS=y
-BR2_TOOLCHAIN_SUPPORTS_VARIADIC_MI_THUNK=y
-BR2_USE_WCHAR=y
-BR2_ENABLE_LOCALE=y
-BR2_INSTALL_LIBSTDCPP=y
-BR2_TOOLCHAIN_HAS_THREADS=y
-BR2_TOOLCHAIN_HAS_THREADS_DEBUG=y
-BR2_TOOLCHAIN_HAS_THREADS_NPTL=y
-BR2_TOOLCHAIN_HAS_SSP=y
-BR2_TOOLCHAIN_HAS_SSP_STRONG=y
-BR2_TOOLCHAIN_HAS_OPENMP=y
-BR2_TOOLCHAIN_SUPPORTS_PIE=y
-BR2_TOOLCHAIN_EXTRA_LIBS=""
-BR2_TARGET_OPTIMIZATION=""
 BR2_TARGET_LDFLAGS="-march=rv64imafdcv0p7xthead -mcpu=c906fdv -mabi=lp64d -mcmodel=medany"
-# BR2_ECLIPSE_REGISTER is not set
-BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_10=y
-BR2_TOOLCHAIN_HEADERS_AT_LEAST="5.10"
-BR2_TOOLCHAIN_GCC_AT_LEAST_10=y
-BR2_TOOLCHAIN_GCC_AT_LEAST="10"
-BR2_TOOLCHAIN_HAS_MNAN_OPTION=y
-BR2_TOOLCHAIN_HAS_SYNC_1=y
-BR2_TOOLCHAIN_HAS_SYNC_2=y
-BR2_TOOLCHAIN_HAS_SYNC_4=y
-BR2_TOOLCHAIN_HAS_SYNC_8=y
-BR2_TOOLCHAIN_HAS_LIBATOMIC=y
-BR2_TOOLCHAIN_HAS_ATOMIC=y
-
-#
-# Build options
-#
-
-#
-# Commands
-#
-BR2_WGET="wget --passive-ftp -nd -t 3"
-BR2_SVN="svn --non-interactive"
-BR2_BZR="bzr"
-BR2_GIT="git"
-BR2_CVS="cvs"
-BR2_LOCALFILES="cp"
-BR2_SCP="scp"
-BR2_SFTP="sftp"
-BR2_HG="hg"
-BR2_ZCAT="gzip -d -c"
-BR2_BZCAT="bzcat"
-BR2_XZCAT="xzcat"
-BR2_LZCAT="lzip -d -c"
-BR2_TAR_OPTIONS=""
-BR2_DEFCONFIG="./configs/milkv-duos-musl-riscv64-sd_defconfig"
-BR2_DL_DIR="$(TOPDIR)/dl"
-BR2_HOST_DIR="$(BASE_DIR)/host"
-
-#
-# Mirrors and Download locations
-#
-BR2_PRIMARY_SITE=""
-BR2_BACKUP_SITE="http://sources.buildroot.net"
-BR2_KERNEL_MIRROR="https://cdn.kernel.org/pub"
-BR2_GNU_MIRROR="http://ftpmirror.gnu.org"
-BR2_LUAROCKS_MIRROR="http://rocks.moonscript.org"
-BR2_CPAN_MIRROR="http://cpan.metacpan.org"
-BR2_JLEVEL=0
-# BR2_CCACHE is not set
-# BR2_ENABLE_DEBUG is not set
-# BR2_ENABLE_RUNTIME_DEBUG is not set
-BR2_STRIP_strip=y
-BR2_STRIP_EXCLUDE_FILES=""
-BR2_STRIP_EXCLUDE_DIRS=""
-# BR2_OPTIMIZE_0 is not set
-# BR2_OPTIMIZE_1 is not set
-# BR2_OPTIMIZE_2 is not set
-# BR2_OPTIMIZE_3 is not set
-# BR2_OPTIMIZE_G is not set
 BR2_OPTIMIZE_S=y
-# BR2_OPTIMIZE_FAST is not set
-# BR2_ENABLE_LTO is not set
-# BR2_STATIC_LIBS is not set
-BR2_SHARED_LIBS=y
-# BR2_SHARED_STATIC_LIBS is not set
-BR2_PACKAGE_OVERRIDE_FILE="$(CONFIG_DIR)/local.mk"
-BR2_GLOBAL_PATCH_DIR=""
-
-#
-# Advanced
-#
-# BR2_FORCE_HOST_BUILD is not set
-# BR2_DOWNLOAD_FORCE_CHECK_HASHES is not set
-# BR2_REPRODUCIBLE is not set
-# BR2_PER_PACKAGE_DIRECTORIES is not set
-
-#
-# Security Hardening Options
-#
-BR2_PIC_PIE_ARCH_SUPPORTS=y
-BR2_PIC_PIE=y
-# BR2_SSP_NONE is not set
-# BR2_SSP_REGULAR is not set
-BR2_SSP_STRONG=y
-# BR2_SSP_ALL is not set
-BR2_SSP_OPTION="-fstack-protector-strong"
-# BR2_RELRO_NONE is not set
-# BR2_RELRO_PARTIAL is not set
-BR2_RELRO_FULL=y
-BR2_FORTIFY_SOURCE_ARCH_SUPPORTS=y
-
-#
-# Fortify Source needs a glibc toolchain and optimization
-#
-
-#
-# System configuration
-#
-BR2_ROOTFS_SKELETON_DEFAULT=y
-# BR2_ROOTFS_SKELETON_CUSTOM is not set
 BR2_TARGET_GENERIC_HOSTNAME="milkv-duo"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Milk-V DuoS SD"
-BR2_TARGET_GENERIC_PASSWD_SHA256=y
-# BR2_TARGET_GENERIC_PASSWD_SHA512 is not set
-BR2_TARGET_GENERIC_PASSWD_METHOD="sha-256"
-BR2_INIT_BUSYBOX=y
-# BR2_INIT_SYSV is not set
-# BR2_INIT_OPENRC is not set
-
-#
-# systemd needs a glibc toolchain w/ SSP, headers >= 4.14, host and target gcc >= 5
-#
-# BR2_INIT_NONE is not set
-# BR2_ROOTFS_DEVICE_CREATION_STATIC is not set
-BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_DEVTMPFS=y
-# BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV is not set
-# BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_EUDEV is not set
-BR2_ROOTFS_DEVICE_TABLE="system/device_table.txt"
-# BR2_ROOTFS_DEVICE_TABLE_SUPPORTS_EXTENDED_ATTRIBUTES is not set
-# BR2_ROOTFS_MERGED_USR is not set
-BR2_TARGET_ENABLE_ROOT_LOGIN=y
 BR2_TARGET_GENERIC_ROOT_PASSWD="milkv"
-BR2_SYSTEM_BIN_SH_BUSYBOX=y
-
-#
-# bash, dash, mksh, zsh need BR2_PACKAGE_BUSYBOX_SHOW_OTHERS
-#
-# BR2_SYSTEM_BIN_SH_NONE is not set
-BR2_TARGET_GENERIC_GETTY=y
-BR2_TARGET_GENERIC_GETTY_PORT="console"
-BR2_TARGET_GENERIC_GETTY_BAUDRATE_KEEP=y
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_9600 is not set
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_19200 is not set
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_38400 is not set
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_57600 is not set
-# BR2_TARGET_GENERIC_GETTY_BAUDRATE_115200 is not set
-BR2_TARGET_GENERIC_GETTY_BAUDRATE="0"
-BR2_TARGET_GENERIC_GETTY_TERM="vt100"
-BR2_TARGET_GENERIC_GETTY_OPTIONS=""
-BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW=y
-BR2_SYSTEM_DHCP=""
-BR2_SYSTEM_DEFAULT_PATH="/bin:/sbin:/usr/bin:/usr/sbin"
-BR2_ENABLE_LOCALE_PURGE=y
-BR2_ENABLE_LOCALE_WHITELIST="C en_US"
-# BR2_SYSTEM_ENABLE_NLS is not set
-# BR2_TARGET_TZ_INFO is not set
-BR2_ROOTFS_USERS_TABLES=""
 BR2_ROOTFS_OVERLAY="board/milkv/milkv-duos-musl-riscv64-sd/overlay"
-BR2_ROOTFS_PRE_BUILD_SCRIPT=""
-BR2_ROOTFS_POST_BUILD_SCRIPT=""
-BR2_ROOTFS_POST_FAKEROOT_SCRIPT=""
-BR2_ROOTFS_POST_IMAGE_SCRIPT=""
-
-#
-# Kernel
-#
-# BR2_LINUX_KERNEL is not set
-
-#
-# Target packages
-#
-BR2_PACKAGE_BUSYBOX=y
-BR2_PACKAGE_BUSYBOX_CONFIG="package/busybox/busybox.config"
-BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES=""
-# BR2_PACKAGE_BUSYBOX_SHOW_OTHERS is not set
-# BR2_PACKAGE_BUSYBOX_INDIVIDUAL_BINARIES is not set
-# BR2_PACKAGE_BUSYBOX_WATCHDOG is not set
-BR2_PACKAGE_SKELETON=y
-BR2_PACKAGE_HAS_SKELETON=y
-BR2_PACKAGE_PROVIDES_SKELETON="skeleton-init-sysv"
-BR2_PACKAGE_SKELETON_INIT_COMMON=y
-BR2_PACKAGE_SKELETON_INIT_SYSV=y
-
-#
-# Audio and video applications
-#
-BR2_PACKAGE_FFMPEG_ARCH_SUPPORTS=y
-BR2_PACKAGE_KODI_ARCH_SUPPORTS=y
-
-#
-# dt needs a glibc or uClibc toolchain w/ threads
-#
-# BR2_PACKAGE_DUMA is not set
-# BR2_PACKAGE_FIO is not set
-BR2_PACKAGE_GDB_ARCH_SUPPORTS=y
 BR2_PACKAGE_GDB=y
-BR2_PACKAGE_GDB_SERVER=y
-# BR2_PACKAGE_GDB_DEBUGGER is not set
-# BR2_PACKAGE_IOZONE is not set
-# BR2_PACKAGE_LATENCYTOP is not set
-# BR2_PACKAGE_LIBBPF is not set
-# BR2_PACKAGE_LIBTRACEEVENT is not set
-# BR2_PACKAGE_LIBTRACEFS is not set
-# BR2_PACKAGE_LMBENCH is not set
-BR2_PACKAGE_LTP_TESTSUITE_ARCH_SUPPORTS=y
-# BR2_PACKAGE_LTTNG_BABELTRACE is not set
-
-
-#
-# nmon needs a glibc toolchain
-#
-# BR2_PACKAGE_PAX_UTILS is not set
-BR2_PACKAGE_PERFTEST_ARCH_SUPPORTS=y
-
-#
-# perftest needs a glibc or uClibc toolchain w/ threads, dynamic library
-#
-# BR2_PACKAGE_POKE is not set
-# BR2_PACKAGE_PV is not set
-# BR2_PACKAGE_RAMSMP is not set
-# BR2_PACKAGE_RAMSPEED is not set
-
-#
-# rt-tests needs a uClibc or glibc toolchain w/ NPTL, headers >= 4.5, dynamic library
-#
 BR2_PACKAGE_STRACE=y
-
-#
-# Development tools
-#
-BR2_PACKAGE_CMAKE_ARCH_SUPPORTS=y
-BR2_PACKAGE_PROVIDES_HOST_GETTEXT="host-gettext-tiny"
-
-#
-# Filesystem and flash utilities
-#
-# BR2_PACKAGE_ABOOTIMG is not set
-
-#
-# davfs2 needs a glibc toolchain
-#
-# BR2_PACKAGE_DOSFSTOOLS is not set
 BR2_PACKAGE_E2FSPROGS=y
-# BR2_PACKAGE_E2FSPROGS_DEBUGFS is not set
-# BR2_PACKAGE_E2FSPROGS_E2IMAGE is not set
-
-#
-# e2scrub needs bash, coreutils, lvm2, and util-linux
-#
-# BR2_PACKAGE_E2FSPROGS_E4DEFRAG is not set
-BR2_PACKAGE_E2FSPROGS_FSCK=y
-# BR2_PACKAGE_E2FSPROGS_FUSE2FS is not set
 BR2_PACKAGE_E2FSPROGS_RESIZE2FS=y
-
-#
-# eudev needs eudev /dev management
-#
-# BR2_PACKAGE_EVEMU is not set
 BR2_PACKAGE_EVTEST=y
-# BR2_PACKAGE_FAN_CTRL is not set
-# BR2_PACKAGE_FCONFIG is not set
-BR2_PACKAGE_FLASHROM_ARCH_SUPPORTS=y
-
-#
-# Compression and decompression
-#
-BR2_PACKAGE_PROVIDES_HOST_ZLIB="host-libzlib"
-# BR2_PACKAGE_ZZIPLIB is not set
-
-#
-# Crypto
-#
-# BR2_PACKAGE_BEARSSL is not set
-# BR2_PACKAGE_BEECRYPT is not set
-BR2_PACKAGE_BOTAN_ARCH_SUPPORTS=y
-# BR2_PACKAGE_BOTAN is not set
-# BR2_PACKAGE_CA_CERTIFICATES is not set
-
-#
-# cryptodev-linux needs a Linux kernel to be built
-#
-BR2_PACKAGE_LIBGPG_ERROR_ARCH_SUPPORTS=y
-# BR2_PACKAGE_LIBGPG_ERROR is not set
-BR2_PACKAGE_LIBGPG_ERROR_SYSCFG="riscv64-unknown-linux-gnu"
-BR2_PACKAGE_PROVIDES_HOST_OPENSSL="host-libopenssl"
-BR2_PACKAGE_WOLFSSL_ASM_SUPPORTS=y
-
-#
-# JSON/XML
-#
 BR2_PACKAGE_JSON_C=y
-
-#
-# Multimedia
-#
-BR2_PACKAGE_LIBCAMERA_ARCH_SUPPORTS=y
-# BR2_PACKAGE_LIBCAMERA is not set
-
-#
-
-#
-BR2_PACKAGE_MUSL_COMPAT_HEADERS=y
-# BR2_PACKAGE_MUSL_FTS is not set
-# BR2_PACKAGE_ORC is not set
-# BR2_PACKAGE_P11_KIT is not set
-BR2_PACKAGE_POCO_ARCH_SUPPORTS=y
-# BR2_PACKAGE_POCO is not set
-BR2_PACKAGE_PROTOBUF_ARCH_SUPPORTS=y
-# BR2_PACKAGE_PROTOBUF is not set
-# BR2_PACKAGE_PROTOBUF_C is not set
-
-#
-# vdr needs a glibc toolchain w/ C++, dynamic library, NPTL, wchar, headers >= 3.9
-#
-BR2_PACKAGE_WPA_SUPPLICANT=y
-BR2_PACKAGE_WPA_SUPPLICANT_NL80211=y
-BR2_PACKAGE_WPA_SUPPLICANT_CLI=y
-BR2_PACKAGE_WPA_SUPPLICANT_WPA_CLIENT_SO=y
-# BR2_PACKAGE_WPA_SUPPLICANT_PASSPHRASE is not set
-BR2_PACKAGE_WPA_SUPPLICANT_CTRL_IFACE=y
-# BR2_PACKAGE_WPA_SUPPLICANT_DBUS is not set
-
-#
-# emlog needs a Linux kernel to be built
-#
-BR2_PACKAGE_INITSCRIPTS=y
-
-#
-# iotop depends on python3
-#
-# BR2_PACKAGE_IPRUTILS is not set
-# BR2_PACKAGE_IRQBALANCE is not set
-# BR2_PACKAGE_KEYUTILS is not set
 BR2_PACKAGE_KMOD=y
-
-#
-# unscd needs a glibc toolchain
-#
-BR2_PACKAGE_UTIL_LINUX=y
-BR2_PACKAGE_UTIL_LINUX_LIBBLKID=y
-# BR2_PACKAGE_UTIL_LINUX_LIBFDISK is not set
-# BR2_PACKAGE_UTIL_LINUX_LIBMOUNT is not set
-# BR2_PACKAGE_UTIL_LINUX_LIBSMARTCOLS is not set
-BR2_PACKAGE_UTIL_LINUX_LIBUUID=y
-
-#
-# su needs a uClibc or glibc toolchain w/ wchar, locale, dynamic library, gcc >= 4.9
-#
-BR2_PACKAGE_UTIL_LINUX_UUIDD=y
-
-#
-# Filesystem images
-#
 BR2_TARGET_ROOTFS_EXT2=y
-# BR2_TARGET_ROOTFS_EXT2_2r0 is not set
-# BR2_TARGET_ROOTFS_EXT2_2r1 is not set
-# BR2_TARGET_ROOTFS_EXT2_3 is not set
 BR2_TARGET_ROOTFS_EXT2_4=y
-BR2_TARGET_ROOTFS_EXT2_GEN=4
-BR2_TARGET_ROOTFS_EXT2_REV=1
-BR2_TARGET_ROOTFS_EXT2_LABEL="rootfs"
 BR2_TARGET_ROOTFS_EXT2_SIZE="786432K"
-BR2_TARGET_ROOTFS_EXT2_INODES=0
-BR2_TARGET_ROOTFS_EXT2_RESBLKS=5
-BR2_TARGET_ROOTFS_EXT2_MKFS_OPTIONS="-O ^64bit"
-BR2_TARGET_ROOTFS_EXT2_NONE=y
-
-#
-# initramfs needs a Linux kernel to be built
-#
-BR2_TARGET_ROOTFS_TAR=y
 BR2_TARGET_ROOTFS_TAR_XZ=y
-BR2_TARGET_ROOTFS_TAR_OPTIONS=""
-
-#
-# Host utilities
-#
-BR2_PACKAGE_HOST_E2FSPROGS=y
 BR2_PACKAGE_HOST_GENIMAGE=y
-BR2_PACKAGE_HOST_UTIL_LINUX=y
-
-#
-# Legacy options removed in 2019.11
-#
-BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS=""
-
-#
-# Legacy options removed in 2017.08
-#
-# BR2_TARGET_GRUB is not set
-# BR2_PACKAGE_SIMICSFS is not set
-# BR2_BINUTILS_VERSION_2_26_X is not set
-BR2_XTENSA_OVERLAY_DIR=""
-BR2_XTENSA_CUSTOM_NAME=""
-# BR2_PACKAGE_HOST_MKE2IMG is not set
-BR2_TARGET_ROOTFS_EXT2_BLOCKS=0
-BR2_TARGET_ROOTFS_EXT2_EXTRA_INODES=0
-
-#
-# Legacy options removed in 2017.05
-#
-BR2_TARGET_ROOTFS_EXT2_EXTRA_BLOCKS=0