diff --git a/.checkpackageignore b/.checkpackageignore
index 3b564578e0..49e47af4c1 100644
--- a/.checkpackageignore
+++ b/.checkpackageignore
@@ -22,7 +22,6 @@ board/bsh/imx8mn-bsh-smm-s2-pro/post-image.sh Shellcheck
 board/bsh/imx8mn-bsh-smm-s2/flash.sh Shellcheck lib_shellscript.EmptyLastLine
 board/bsh/imx8mn-bsh-smm-s2/post-build.sh Shellcheck
 board/canaan/k210-soc/post-build.sh Shellcheck
-board/canaan/k210-soc/rootfs_overlay/sbin/init Shellcheck
 board/chromebook/elm/sign.sh Shellcheck
 board/chromebook/mksd.sh Shellcheck
 board/chromebook/snow/sign.sh Shellcheck
diff --git a/board/canaan/k210-soc/rootfs_overlay/init b/board/canaan/k210-soc/rootfs_overlay/init
deleted file mode 120000
index a0b71977c0..0000000000
--- a/board/canaan/k210-soc/rootfs_overlay/init
+++ /dev/null
@@ -1 +0,0 @@
-/sbin/init
\ No newline at end of file
diff --git a/board/canaan/k210-soc/rootfs_overlay/sbin/init b/board/canaan/k210-soc/rootfs_overlay/sbin/init
deleted file mode 100755
index d4bf53d452..0000000000
--- a/board/canaan/k210-soc/rootfs_overlay/sbin/init
+++ /dev/null
@@ -1,41 +0,0 @@
-#!/bin/sh
-
-# This script replaces the default busybox init process to avoid having that
-# process staying alive and sleeping in the background, (uselessly) consuming
-# precious memory.
-
-# Mount procfs and sysfs
-/bin/mount -t proc proc /proc
-/bin/mount -t sysfs sysfs /sys
-
-# When the kernel is directly booted, devtmpfs is not automatically mounted.
-# Manually mount it if needed.
-devmnt=$(mount | grep -c devtmpfs)
-if [ ${devmnt} -eq 0 ]; then
-    /bin/mount -t devtmpfs devtmpfs /dev
-fi
-
-# Use the /dev/console device node from devtmpfs if possible to not
-# confuse glibc's ttyname_r().
-# This may fail (E.G. booted with console=), and errors from exec will
-# terminate the shell, so use a subshell for the test
-if (exec 0</dev/console) 2>/dev/null; then
-    exec 0</dev/console
-    exec 1>/dev/console
-    exec 2>/dev/console
-fi
-
-# Clear memory to reduce page fragmentation
-echo 3 > /proc/sys/vm/drop_caches
-
-# Print a fun logo :)
-echo "          __  _"
-echo "         / / (_) ____   _   _ __  __"
-echo "        / /  | ||  _ \\ | | | |\\ \\/ /"
-echo "       / /___| || | | || |_| | >  < "
-echo "      /_____/|_||_| |_| \\____|/_/\\_\\"
-echo "    64-bits RISC-V Kendryte K210 NOMMU"
-echo ""
-
-# Finally, let's start an interactive shell
-exec /bin/sh
diff --git a/configs/canaan_kd233_defconfig b/configs/canaan_kd233_defconfig
index 832f8363a7..27624aff4a 100644
--- a/configs/canaan_kd233_defconfig
+++ b/configs/canaan_kd233_defconfig
@@ -32,6 +32,5 @@ BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="board/canaan/k210-soc/busybox-tiny.co
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 
 # Filesystem
-BR2_INIT_NONE=y
+BR2_INIT_TINYINIT=y
 BR2_TARGET_ROOTFS_INITRAMFS=y
-BR2_ROOTFS_OVERLAY="board/canaan/k210-soc/rootfs_overlay"
diff --git a/configs/sipeed_maix_bit_defconfig b/configs/sipeed_maix_bit_defconfig
index 238e082a3d..5119307330 100644
--- a/configs/sipeed_maix_bit_defconfig
+++ b/configs/sipeed_maix_bit_defconfig
@@ -32,6 +32,5 @@ BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="board/canaan/k210-soc/busybox-tiny.co
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 
 # Filesystem
-BR2_INIT_NONE=y
+BR2_INIT_TINYINIT=y
 BR2_TARGET_ROOTFS_INITRAMFS=y
-BR2_ROOTFS_OVERLAY="board/canaan/k210-soc/rootfs_overlay"
diff --git a/configs/sipeed_maix_bit_sdcard_defconfig b/configs/sipeed_maix_bit_sdcard_defconfig
index 28aa143583..4047da1592 100644
--- a/configs/sipeed_maix_bit_sdcard_defconfig
+++ b/configs/sipeed_maix_bit_sdcard_defconfig
@@ -33,10 +33,9 @@ BR2_LINUX_KERNEL_INTREE_DTS_NAME="canaan/sipeed_maix_bit"
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 
 # Filesystem
-BR2_INIT_NONE=y
+BR2_INIT_TINYINIT=y
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_SIZE="64M"
-BR2_ROOTFS_OVERLAY="board/canaan/k210-soc/rootfs_overlay"
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/canaan/k210-soc/post-build.sh"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/canaan/k210-soc/genimage.cfg"
diff --git a/configs/sipeed_maix_dock_defconfig b/configs/sipeed_maix_dock_defconfig
index ee1b0d8372..0caa4d4e3a 100644
--- a/configs/sipeed_maix_dock_defconfig
+++ b/configs/sipeed_maix_dock_defconfig
@@ -32,6 +32,5 @@ BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="board/canaan/k210-soc/busybox-tiny.co
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 
 # Filesystem
-BR2_INIT_NONE=y
+BR2_INIT_TINYINIT=y
 BR2_TARGET_ROOTFS_INITRAMFS=y
-BR2_ROOTFS_OVERLAY="board/canaan/k210-soc/rootfs_overlay"
diff --git a/configs/sipeed_maix_dock_sdcard_defconfig b/configs/sipeed_maix_dock_sdcard_defconfig
index 41a062c7a1..ecb640a47b 100644
--- a/configs/sipeed_maix_dock_sdcard_defconfig
+++ b/configs/sipeed_maix_dock_sdcard_defconfig
@@ -33,10 +33,9 @@ BR2_LINUX_KERNEL_INTREE_DTS_NAME="canaan/sipeed_maix_dock"
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 
 # Filesystem
-BR2_INIT_NONE=y
+BR2_INIT_TINYINIT=y
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_SIZE="64M"
-BR2_ROOTFS_OVERLAY="board/canaan/k210-soc/rootfs_overlay"
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/canaan/k210-soc/post-build.sh"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/canaan/k210-soc/genimage.cfg"
diff --git a/configs/sipeed_maix_go_defconfig b/configs/sipeed_maix_go_defconfig
index a5b09e17ac..21075a9ed0 100644
--- a/configs/sipeed_maix_go_defconfig
+++ b/configs/sipeed_maix_go_defconfig
@@ -32,6 +32,5 @@ BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="board/canaan/k210-soc/busybox-tiny.co
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 
 # Filesystem
-BR2_INIT_NONE=y
+BR2_INIT_TINYINIT=y
 BR2_TARGET_ROOTFS_INITRAMFS=y
-BR2_ROOTFS_OVERLAY="board/canaan/k210-soc/rootfs_overlay"
diff --git a/configs/sipeed_maix_go_sdcard_defconfig b/configs/sipeed_maix_go_sdcard_defconfig
index 0e80d9c83a..5448bd0ce3 100644
--- a/configs/sipeed_maix_go_sdcard_defconfig
+++ b/configs/sipeed_maix_go_sdcard_defconfig
@@ -33,10 +33,9 @@ BR2_LINUX_KERNEL_INTREE_DTS_NAME="canaan/sipeed_maix_go"
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 
 # Filesystem
-BR2_INIT_NONE=y
+BR2_INIT_TINYINIT=y
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_SIZE="64M"
-BR2_ROOTFS_OVERLAY="board/canaan/k210-soc/rootfs_overlay"
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/canaan/k210-soc/post-build.sh"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/canaan/k210-soc/genimage.cfg"
diff --git a/configs/sipeed_maixduino_defconfig b/configs/sipeed_maixduino_defconfig
index 7ba7653e8d..6c93b29b43 100644
--- a/configs/sipeed_maixduino_defconfig
+++ b/configs/sipeed_maixduino_defconfig
@@ -32,6 +32,5 @@ BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES="board/canaan/k210-soc/busybox-tiny.co
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 
 # Filesystem
-BR2_INIT_NONE=y
+BR2_INIT_TINYINIT=y
 BR2_TARGET_ROOTFS_INITRAMFS=y
-BR2_ROOTFS_OVERLAY="board/canaan/k210-soc/rootfs_overlay"
diff --git a/configs/sipeed_maixduino_sdcard_defconfig b/configs/sipeed_maixduino_sdcard_defconfig
index 7bdd36e1d0..0b42cae45d 100644
--- a/configs/sipeed_maixduino_sdcard_defconfig
+++ b/configs/sipeed_maixduino_sdcard_defconfig
@@ -33,10 +33,9 @@ BR2_LINUX_KERNEL_INTREE_DTS_NAME="canaan/sipeed_maixduino"
 # BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
 
 # Filesystem
-BR2_INIT_NONE=y
+BR2_INIT_TINYINIT=y
 BR2_TARGET_ROOTFS_EXT2=y
 BR2_TARGET_ROOTFS_EXT2_SIZE="64M"
-BR2_ROOTFS_OVERLAY="board/canaan/k210-soc/rootfs_overlay"
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/canaan/k210-soc/post-build.sh"
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/canaan/k210-soc/genimage.cfg"