diff --git a/board/iminc/orangepi-pc-system-agent/genimage.cfg b/board/iminc/orangepi-pc-system-agent/genimage.cfg
index f1c372d..23c17ab 100644
--- a/board/iminc/orangepi-pc-system-agent/genimage.cfg
+++ b/board/iminc/orangepi-pc-system-agent/genimage.cfg
@@ -8,7 +8,7 @@ image boot.vfat {
 			"boot.scr"
 		}
 	}
-	size = 128M
+	size = 32M
 }
 
 image sdcard.img {
diff --git a/configs/orangepi_pc_system_agent_defconfig b/configs/orangepi_pc_system_agent_defconfig
index e5258dc..1b05bd7 100644
--- a/configs/orangepi_pc_system_agent_defconfig
+++ b/configs/orangepi_pc_system_agent_defconfig
@@ -10,6 +10,7 @@ BR2_GCC_VERSION_10_X=y
 BR2_TOOLCHAIN_BUILDROOT_CXX=y
 BR2_GCC_ENABLE_LTO=y
 BR2_PACKAGE_HOST_GDB=y
+BR2_PACKAGE_HOST_GDB_TUI=y
 BR2_PACKAGE_HOST_GDB_PYTHON3=y
 BR2_GDB_VERSION_10=y
 BR2_TARGET_GENERIC_HOSTNAME="system-agent-opi-pc"
@@ -23,12 +24,12 @@ BR2_TARGET_LOCALTIME="Asia/Tokyo"
 BR2_ROOTFS_USERS_TABLES="$(BR2_EXTERNAL_system_agent_PATH)/customizations/users.table"
 BR2_ROOTFS_OVERLAY="$(BR2_EXTERNAL_system_agent_PATH)/customizations/overlay"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
-BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/iminc/orangepi-pc-system-agent/genimage.cfg"
+BR2_ROOTFS_POST_SCRIPT_ARGS="-c $(BR2_EXTERNAL_system_agent_PATH)/board/iminc/orangepi-pc-system-agent/genimage.cfg"
 BR2_LINUX_KERNEL=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION=y
 BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="5.12.9"
 BR2_LINUX_KERNEL_DEFCONFIG="sunxi"
-BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="board/iminc/orangepi-pc-system-agent/linux.fragment"
+BR2_LINUX_KERNEL_CONFIG_FRAGMENT_FILES="$(BR2_EXTERNAL_system_agent_PATH)/board/iminc/orangepi-pc-system-agent/linux.fragment"
 BR2_LINUX_KERNEL_DTS_SUPPORT=y
 BR2_LINUX_KERNEL_INTREE_DTS_NAME="sun8i-h3-orangepi-pc"
 BR2_PACKAGE_LINUX_TOOLS_CPUPOWER=y
@@ -49,9 +50,11 @@ BR2_PACKAGE_NETWORK_MANAGER_MODEM_MANAGER=y
 BR2_PACKAGE_OPENSSH=y
 BR2_PACKAGE_BASH_COMPLETION=y
 BR2_PACKAGE_SUDO=y
+BR2_PACKAGE_HTOP=y
 BR2_PACKAGE_VIM=y
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_4=y
+BR2_TARGET_ROOTFS_EXT2_SIZE="128M"
 # BR2_TARGET_ROOTFS_TAR is not set
 BR2_TARGET_UBOOT=y
 BR2_TARGET_UBOOT_BUILD_SYSTEM_KCONFIG=y
@@ -68,4 +71,4 @@ BR2_PACKAGE_HOST_GENIMAGE=y
 BR2_PACKAGE_HOST_MTOOLS=y
 BR2_PACKAGE_HOST_UBOOT_TOOLS=y
 BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT=y
-BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT_SOURCE="board/iminc/orangepi-pc-system-agent/boot.cmd"
+BR2_PACKAGE_HOST_UBOOT_TOOLS_BOOT_SCRIPT_SOURCE="$(BR2_EXTERNAL_system_agent_PATH)/board/iminc/orangepi-pc-system-agent/boot.cmd"