diff --git a/conf/demosoc/buildroot_initramfs_rv64imac_config b/conf/demosoc/buildroot_initramfs_rv64imac_config
index 46f8112..bf60467 100644
--- a/conf/demosoc/buildroot_initramfs_rv64imac_config
+++ b/conf/demosoc/buildroot_initramfs_rv64imac_config
@@ -2,16 +2,17 @@ BR2_riscv=y
 BR2_riscv_custom=y
 BR2_RISCV_ISA_CUSTOM_RVM=y
 BR2_RISCV_ISA_CUSTOM_RVC=y
-BR2_KERNEL_MIRROR="http://mirrors.163.com/kernel"
-BR2_GNU_MIRROR="https://mirrors.tuna.tsinghua.edu.cn/gnu"
-BR2_CPAN_MIRROR="https://mirrors.163.com/cpan"
 BR2_TOOLCHAIN_EXTERNAL=y
 BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
 BR2_TOOLCHAIN_EXTERNAL_URL="https://www.nucleisys.com/upload/files/nuclei_riscv_glibc_prebuilt_linux64_2022.04.tar.bz2"
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="riscv-nuclei-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_10=y
 BR2_TOOLCHAIN_EXTERNAL_HEADERS_5_0=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
 BR2_TOOLCHAIN_EXTERNAL_CXX=y
+BR2_KERNEL_MIRROR="http://mirrors.163.com/kernel"
+BR2_GNU_MIRROR="https://mirrors.tuna.tsinghua.edu.cn/gnu"
+BR2_CPAN_MIRROR="https://mirrors.163.com/cpan"
 BR2_TARGET_GENERIC_HOSTNAME="nucleisys"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Nuclei System Technology"
 BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV=y
@@ -41,5 +42,6 @@ BR2_PACKAGE_MTD_JFFS2DUMP=y
 BR2_PACKAGE_MTD_MKFSJFFS2=y
 BR2_PACKAGE_MTD_MTDPART=y
 BR2_PACKAGE_MINICOM=y
+BR2_PACKAGE_LIBTIRPC=y
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 BR2_PACKAGE_LRZSZ=y
diff --git a/conf/demosoc/buildroot_initramfs_rv64imafdc_config b/conf/demosoc/buildroot_initramfs_rv64imafdc_config
index 410a12b..8821ce5 100644
--- a/conf/demosoc/buildroot_initramfs_rv64imafdc_config
+++ b/conf/demosoc/buildroot_initramfs_rv64imafdc_config
@@ -1,14 +1,16 @@
 BR2_riscv=y
-BR2_KERNEL_MIRROR="http://mirrors.163.com/kernel"
-BR2_GNU_MIRROR="https://mirrors.tuna.tsinghua.edu.cn/gnu"
-BR2_CPAN_MIRROR="https://mirrors.163.com/cpan"
 BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
 BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
 BR2_TOOLCHAIN_EXTERNAL_URL="https://www.nucleisys.com/upload/files/nuclei_riscv_glibc_prebuilt_linux64_2022.04.tar.bz2"
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="riscv-nuclei-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_10=y
 BR2_TOOLCHAIN_EXTERNAL_HEADERS_5_0=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
 BR2_TOOLCHAIN_EXTERNAL_CXX=y
+BR2_KERNEL_MIRROR="http://mirrors.163.com/kernel"
+BR2_GNU_MIRROR="https://mirrors.tuna.tsinghua.edu.cn/gnu"
+BR2_CPAN_MIRROR="https://mirrors.163.com/cpan"
 BR2_TARGET_GENERIC_HOSTNAME="nucleisys"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Nuclei System Technology"
 BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV=y
@@ -38,5 +40,6 @@ BR2_PACKAGE_MTD_JFFS2DUMP=y
 BR2_PACKAGE_MTD_MKFSJFFS2=y
 BR2_PACKAGE_MTD_MTDPART=y
 BR2_PACKAGE_MINICOM=y
+BR2_PACKAGE_LIBTIRPC=y
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 BR2_PACKAGE_LRZSZ=y
diff --git a/conf/evalsoc/buildroot_initramfs_rv64imac_config b/conf/evalsoc/buildroot_initramfs_rv64imac_config
index 46f8112..bf60467 100644
--- a/conf/evalsoc/buildroot_initramfs_rv64imac_config
+++ b/conf/evalsoc/buildroot_initramfs_rv64imac_config
@@ -2,16 +2,17 @@ BR2_riscv=y
 BR2_riscv_custom=y
 BR2_RISCV_ISA_CUSTOM_RVM=y
 BR2_RISCV_ISA_CUSTOM_RVC=y
-BR2_KERNEL_MIRROR="http://mirrors.163.com/kernel"
-BR2_GNU_MIRROR="https://mirrors.tuna.tsinghua.edu.cn/gnu"
-BR2_CPAN_MIRROR="https://mirrors.163.com/cpan"
 BR2_TOOLCHAIN_EXTERNAL=y
 BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
 BR2_TOOLCHAIN_EXTERNAL_URL="https://www.nucleisys.com/upload/files/nuclei_riscv_glibc_prebuilt_linux64_2022.04.tar.bz2"
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="riscv-nuclei-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_10=y
 BR2_TOOLCHAIN_EXTERNAL_HEADERS_5_0=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
 BR2_TOOLCHAIN_EXTERNAL_CXX=y
+BR2_KERNEL_MIRROR="http://mirrors.163.com/kernel"
+BR2_GNU_MIRROR="https://mirrors.tuna.tsinghua.edu.cn/gnu"
+BR2_CPAN_MIRROR="https://mirrors.163.com/cpan"
 BR2_TARGET_GENERIC_HOSTNAME="nucleisys"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Nuclei System Technology"
 BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV=y
@@ -41,5 +42,6 @@ BR2_PACKAGE_MTD_JFFS2DUMP=y
 BR2_PACKAGE_MTD_MKFSJFFS2=y
 BR2_PACKAGE_MTD_MTDPART=y
 BR2_PACKAGE_MINICOM=y
+BR2_PACKAGE_LIBTIRPC=y
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 BR2_PACKAGE_LRZSZ=y
diff --git a/conf/evalsoc/buildroot_initramfs_rv64imafdc_config b/conf/evalsoc/buildroot_initramfs_rv64imafdc_config
index 410a12b..8821ce5 100644
--- a/conf/evalsoc/buildroot_initramfs_rv64imafdc_config
+++ b/conf/evalsoc/buildroot_initramfs_rv64imafdc_config
@@ -1,14 +1,16 @@
 BR2_riscv=y
-BR2_KERNEL_MIRROR="http://mirrors.163.com/kernel"
-BR2_GNU_MIRROR="https://mirrors.tuna.tsinghua.edu.cn/gnu"
-BR2_CPAN_MIRROR="https://mirrors.163.com/cpan"
 BR2_TOOLCHAIN_EXTERNAL=y
+BR2_TOOLCHAIN_EXTERNAL_CUSTOM=y
 BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD=y
 BR2_TOOLCHAIN_EXTERNAL_URL="https://www.nucleisys.com/upload/files/nuclei_riscv_glibc_prebuilt_linux64_2022.04.tar.bz2"
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX="riscv-nuclei-linux-gnu"
+BR2_TOOLCHAIN_EXTERNAL_GCC_10=y
 BR2_TOOLCHAIN_EXTERNAL_HEADERS_5_0=y
 BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC=y
 BR2_TOOLCHAIN_EXTERNAL_CXX=y
+BR2_KERNEL_MIRROR="http://mirrors.163.com/kernel"
+BR2_GNU_MIRROR="https://mirrors.tuna.tsinghua.edu.cn/gnu"
+BR2_CPAN_MIRROR="https://mirrors.163.com/cpan"
 BR2_TARGET_GENERIC_HOSTNAME="nucleisys"
 BR2_TARGET_GENERIC_ISSUE="Welcome to Nuclei System Technology"
 BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV=y
@@ -38,5 +40,6 @@ BR2_PACKAGE_MTD_JFFS2DUMP=y
 BR2_PACKAGE_MTD_MKFSJFFS2=y
 BR2_PACKAGE_MTD_MTDPART=y
 BR2_PACKAGE_MINICOM=y
+BR2_PACKAGE_LIBTIRPC=y
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 BR2_PACKAGE_LRZSZ=y