diff --git a/build-kernel.sh b/build-kernel.sh
index 4897b6e64..1f2336b83 100755
--- a/build-kernel.sh
+++ b/build-kernel.sh
@@ -111,61 +111,51 @@ case "$BOARD" in
   cp4b-skh)
     cfg="coolpi_linux_defconfig"
     dtb="rk3588s-cp4-skh.dtb"
-    txt_config_file="config_cp4b.txt"
     txt_extconf_file="extlinux_cp4b.conf"
     ;;
   cp4b-hdmi-in)
     cfg="rk3588s_cp4b_defconfig"
     dtb="rk3588s-cp4-hdmi-in.dtb"
-    txt_config_file="config_cp4b_hdmi_in.txt"
     txt_extconf_file="extlinux_cp4b_hdmi_in.conf"
     ;;
   cm5-evb)
     cfg="rk3588_cpcm5_evb_defconfig"
     dtb="rk3588-cpcm5-evb.dtb"
-    txt_config_file="config_cpcm5_evb.txt"
     txt_extconf_file="extlinux_cpcm5_evb.conf"
     ;;
   cm5-evb-v11)
     cfg="rk3588_cpcm5_evb_defconfig"
     dtb="rk3588-cpcm5-evb-v11.dtb"
-    txt_config_file="config_cpcm5_evb_v11.txt"
     txt_extconf_file="extlinux_cpcm5_evb_v11.conf"
     ;;
   cm5-minipc)
     cfg="rk3588_cpcm5_minipc_defconfig"
     dtb="rk3588-cpcm5-minipc.dtb"
-    txt_config_file="config_cpcm5_minipc.txt"
     txt_extconf_file="extlinux_cpcm5_minipc.conf"
     ;;
   cm5-notebook)
     cfg="rk3588_cpcm5_notebook_defconfig"
     dtb="rk3588-cpcm5-notebook.dtb"
-    txt_config_file="config_cpcm5_notebook.txt"
     txt_extconf_file="extlinux_cpcm5_notebook.conf"
     ;;
   cm5-genbook)
     cfg="rk3588_cpcm5_genbook_defconfig"
     dtb="rk3588-cpcm5-genbook.dtb"
-    txt_config_file="config_cpcm5_genbook.txt"
     txt_extconf_file="extlinux_cpcm5_genbook.conf"
     ;;
   cm5-8uart)
     cfg="rk3588_cpcm5_defconfig"
     dtb="rk3588-cpcm5-8uart.dtb"
-    txt_config_file="config_cpcm5_8uart.txt"
     txt_extconf_file="extlinux_cpcm5_8uart.conf"
     ;;
   cm5-lz)
     cfg="rk3588_cpcm5_lz_defconfig"
     dtb="rk3588-cpcm5-lz.dtb"
-    txt_config_file="config_cpcm5_lz.txt"
     txt_extconf_file="extlinux_cpcm5_lz.conf"
     ;;
   cpnano)
     cfg="rv1106_cpnano_defconfig"
     dtb="rv1106-cpnano.dtb"
-    txt_config_file="config_cpnano.txt"
     txt_extconf_file="extlinux_cpnano.conf"
     RV1106="1"
     export ARCH=arm
@@ -206,10 +196,6 @@ if [ "$RV1106" == "1" ]; then
     make ARCH=arm modules_install INSTALL_MOD_PATH=out_modules
     rm -rf out
     mkdir -p out/extlinux
-    cp vmlinuz out/
-    #cp demo-cfgs/cmdline.txt out/cmdline.txt
-    #cp demo-cfgs/$txt_config_file out/config.txt
-    cp demo-cfgs/$txt_extconf_file out/extlinux/extlinux.conf
 else
     make ARCH=arm64 LOCALVERSION= $cfg
     make ARCH=arm64 LOCALVERSION= -j8
@@ -233,8 +219,6 @@ else
     mkdir -p out/extlinux
     cp vmlinuz out/
     cp Image out/
-    cp demo-cfgs/cmdline.txt out/cmdline.txt
-    cp demo-cfgs/$txt_config_file out/config.txt
     cp demo-cfgs/$txt_extconf_file out/extlinux/extlinux.conf
 fi
 
diff --git a/demo-cfgs/cmdline.txt b/demo-cfgs/cmdline.txt
deleted file mode 100755
index 2d35810e8..000000000
--- a/demo-cfgs/cmdline.txt
+++ /dev/null
@@ -1 +0,0 @@
-root=LABEL=writable rw rootfstype=ext4 console=ttyS0,115200n81 quiet splash plymouth.ignore-serial-consoles vt.global_cursor_default=1 irqchip.gicv3_pseudo_nmi=0 net.ifnames=0
diff --git a/demo-cfgs/config_cp4b.txt b/demo-cfgs/config_cp4b.txt
deleted file mode 100755
index 60f284876..000000000
--- a/demo-cfgs/config_cp4b.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-bootdir=/
-kernel=vmlinuz
-initrd=initrd.img
-dtb=rk3588s-cp4.dtb
-
diff --git a/demo-cfgs/config_cpcm5_8uart.txt b/demo-cfgs/config_cpcm5_8uart.txt
deleted file mode 100755
index cac433a2a..000000000
--- a/demo-cfgs/config_cpcm5_8uart.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-bootdir=/
-kernel=vmlinuz
-initrd=initrd.img
-dtb=rk3588-cpcm5-8uart.dtb
-
diff --git a/demo-cfgs/config_cpcm5_evb.txt b/demo-cfgs/config_cpcm5_evb.txt
deleted file mode 100755
index c1c5e21f5..000000000
--- a/demo-cfgs/config_cpcm5_evb.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-bootdir=/
-kernel=vmlinuz
-initrd=initrd.img
-dtb=rk3588-cpcm5-evb.dtb
-
diff --git a/demo-cfgs/config_cpcm5_evb_v11.txt b/demo-cfgs/config_cpcm5_evb_v11.txt
deleted file mode 100755
index 9dd355201..000000000
--- a/demo-cfgs/config_cpcm5_evb_v11.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-bootdir=/
-kernel=vmlinuz
-initrd=initrd.img
-dtb=rk3588-cpcm5-evb-v11.dtb
-
diff --git a/demo-cfgs/config_cpcm5_genbook.txt b/demo-cfgs/config_cpcm5_genbook.txt
deleted file mode 100755
index 226aa8454..000000000
--- a/demo-cfgs/config_cpcm5_genbook.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-bootdir=/
-kernel=vmlinuz
-initrd=initrd.img
-dtb=rk3588-cpcm5-genbook.dtb
-
diff --git a/demo-cfgs/config_cpcm5_lz.txt b/demo-cfgs/config_cpcm5_lz.txt
deleted file mode 100755
index 7b4f372a6..000000000
--- a/demo-cfgs/config_cpcm5_lz.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-bootdir=/
-kernel=vmlinuz
-initrd=initrd.img
-dtb=rk3588-cpcm5-lz.dtb
-
diff --git a/demo-cfgs/config_cpcm5_minipc.txt b/demo-cfgs/config_cpcm5_minipc.txt
deleted file mode 100755
index a25314063..000000000
--- a/demo-cfgs/config_cpcm5_minipc.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-bootdir=/
-kernel=vmlinuz
-initrd=initrd.img
-dtb=rk3588-cpcm5-minipc.dtb
-
diff --git a/demo-cfgs/config_cpcm5_notebook.txt b/demo-cfgs/config_cpcm5_notebook.txt
deleted file mode 100755
index cede4056e..000000000
--- a/demo-cfgs/config_cpcm5_notebook.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-bootdir=/
-kernel=vmlinuz
-initrd=initrd.img
-dtb=rk3588-cpcm5-notebook.dtb
-
diff --git a/demo-cfgs/config_cpnano.txt b/demo-cfgs/config_cpnano.txt
deleted file mode 100755
index 194b7535e..000000000
--- a/demo-cfgs/config_cpnano.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-bootdir=/
-kernel=vmlinuz
-initrd=initrd32.img
-dtb=rv1106-cpnano.dtb
-