diff --git a/04_build_linux.sh b/04_build_linux.sh
index 8f74e5b..c4309d4 100755
--- a/04_build_linux.sh
+++ b/04_build_linux.sh
@@ -123,6 +123,13 @@ if [ -f arch/riscv/configs/mpfs_defconfig ] ; then
 
 	#./scripts/config --disable CONFIG_VMAP_STACK
 	#./scripts/config --disable CONFIG_SMP
+
+	#Optimize:
+	./scripts/config --enable CONFIG_IP_NF_IPTABLES
+	./scripts/config --enable CONFIG_NETFILTER_XTABLES
+	./scripts/config --enable CONFIG_NLS_ISO8859_1
+	./scripts/config --enable CONFIG_BLK_DEV_DM
+
 	echo "make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig"
 	make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig
 else
@@ -187,6 +194,12 @@ else
 	./scripts/config --disable CONFIG_DRM_NOUVEAU
 	./scripts/config --disable CONFIG_DRM_SUN4I
 
+	#Optimize:
+	./scripts/config --enable CONFIG_IP_NF_IPTABLES
+	./scripts/config --enable CONFIG_NETFILTER_XTABLES
+	./scripts/config --enable CONFIG_NLS_ISO8859_1
+	./scripts/config --enable CONFIG_BLK_DEV_DM
+
 	echo "make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig"
 	make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig
 fi
diff --git a/06_generate_debian_console_root.sh b/06_generate_debian_console_root.sh
index 9bcd9dd..293f631 100755
--- a/06_generate_debian_console_root.sh
+++ b/06_generate_debian_console_root.sh
@@ -65,7 +65,19 @@ rm -rf ./ignore/.root/etc/systemd/system/multi-user.target.wants/wpa_supplicant@
 #ln -L -f -s -v /lib/systemd/system/resize_filesystem.service --target-directory=./etc/systemd/system/multi-user.target.wants/
 #cd ../../
 
-cp -v ./ignore/.root/etc/bbb.io/templates/eth0-DHCP.network ./ignore/.root/etc/systemd/network/eth0.network || true
+if [ -f ./ignore/.root/etc/bbb.io/templates/eth0-DHCP.network ] ; then
+	cp -v ./ignore/.root/etc/bbb.io/templates/eth0-DHCP.network ./ignore/.root/etc/systemd/network/eth0.network || true
+else
+	echo '[Match]' > ./ignore/.root/etc/systemd/network/eth0.network
+	echo 'Name=eth0' >> ./ignore/.root/etc/systemd/network/eth0.network
+	echo 'Type=ether' >> ./ignore/.root/etc/systemd/network/eth0.network
+	echo '' >> ./ignore/.root/etc/systemd/network/eth0.network
+	echo '[Link]' >> ./ignore/.root/etc/systemd/network/eth0.network
+	echo 'RequiredForOnline=yes' >> ./ignore/.root/etc/systemd/network/eth0.network
+	echo '' >> ./ignore/.root/etc/systemd/network/eth0.network
+	echo '[Network]' >> ./ignore/.root/etc/systemd/network/eth0.network
+	echo 'DHCP=ipv4' >> ./ignore/.root/etc/systemd/network/eth0.network
+fi
 
 # setuid root ping+ping6
 chmod u+s ./ignore/.root/usr/bin/ping ./ignore/.root/usr/bin/ping6
@@ -82,7 +94,7 @@ echo 'File Size'
 du -sh ignore/.root/ || true
 echo '---------------------'
 
-dd if=/dev/zero of=./deploy/input/root.ext4 bs=1 count=0 seek=2048M
+dd if=/dev/zero of=./deploy/input/root.ext4 bs=1 count=0 seek=2200M
 mkfs.ext4 -F ./deploy/input/root.ext4 -d ./ignore/.root
 
 if [ -f ./.06_generate_root.sh ] ; then
diff --git a/build_linux_menuconfig.sh b/build_linux_menuconfig.sh
index d7a2257..d532167 100755
--- a/build_linux_menuconfig.sh
+++ b/build_linux_menuconfig.sh
@@ -123,6 +123,13 @@ if [ -f arch/riscv/configs/mpfs_defconfig ] ; then
 
 	#./scripts/config --disable CONFIG_VMAP_STACK
 	#./scripts/config --disable CONFIG_SMP
+
+	#Optimize:
+	./scripts/config --enable CONFIG_IP_NF_IPTABLES
+	./scripts/config --enable CONFIG_NETFILTER_XTABLES
+	./scripts/config --enable CONFIG_NLS_ISO8859_1
+	./scripts/config --enable CONFIG_BLK_DEV_DM
+
 	echo "make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig"
 	make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig
 else
@@ -187,6 +194,12 @@ else
 	./scripts/config --disable CONFIG_DRM_NOUVEAU
 	./scripts/config --disable CONFIG_DRM_SUN4I
 
+	#Optimize:
+	./scripts/config --enable CONFIG_IP_NF_IPTABLES
+	./scripts/config --enable CONFIG_NETFILTER_XTABLES
+	./scripts/config --enable CONFIG_NLS_ISO8859_1
+	./scripts/config --enable CONFIG_BLK_DEV_DM
+
 	echo "make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig"
 	make -j${CORES} ARCH=riscv CROSS_COMPILE=${CC} olddefconfig
 fi
diff --git a/patches/linux/mainline/defconfig b/patches/linux/mainline/defconfig
index 02f9416..ee8f37c 100644
--- a/patches/linux/mainline/defconfig
+++ b/patches/linux/mainline/defconfig
@@ -823,7 +823,7 @@ CONFIG_NF_NAT_TFTP=m
 CONFIG_NF_NAT_REDIRECT=y
 CONFIG_NF_NAT_MASQUERADE=y
 # CONFIG_NF_TABLES is not set
-CONFIG_NETFILTER_XTABLES=m
+CONFIG_NETFILTER_XTABLES=y
 # CONFIG_NETFILTER_XTABLES_COMPAT is not set
 
 #
@@ -968,7 +968,7 @@ CONFIG_NF_DEFRAG_IPV4=m
 CONFIG_NF_LOG_ARP=m
 CONFIG_NF_LOG_IPV4=m
 CONFIG_NF_REJECT_IPV4=m
-CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_IPTABLES=y
 # CONFIG_IP_NF_MATCH_AH is not set
 # CONFIG_IP_NF_MATCH_ECN is not set
 # CONFIG_IP_NF_MATCH_RPFILTER is not set
@@ -1637,7 +1637,7 @@ CONFIG_MD=y
 # CONFIG_BLK_DEV_MD is not set
 # CONFIG_BCACHE is not set
 CONFIG_BLK_DEV_DM_BUILTIN=y
-CONFIG_BLK_DEV_DM=m
+CONFIG_BLK_DEV_DM=y
 # CONFIG_DM_DEBUG is not set
 CONFIG_DM_BUFIO=m
 # CONFIG_DM_DEBUG_BLOCK_MANAGER_LOCKING is not set
@@ -1658,6 +1658,7 @@ CONFIG_DM_THIN_PROVISIONING=m
 # CONFIG_DM_MULTIPATH is not set
 # CONFIG_DM_DELAY is not set
 # CONFIG_DM_DUST is not set
+# CONFIG_DM_INIT is not set
 # CONFIG_DM_UEVENT is not set
 # CONFIG_DM_FLAKEY is not set
 # CONFIG_DM_VERITY is not set
@@ -4167,7 +4168,7 @@ CONFIG_NFS_V4=y
 CONFIG_NFS_V4_1=y
 CONFIG_NFS_V4_2=y
 CONFIG_PNFS_FILE_LAYOUT=y
-CONFIG_PNFS_BLOCK=m
+CONFIG_PNFS_BLOCK=y
 CONFIG_PNFS_FLEXFILE_LAYOUT=y
 CONFIG_NFS_V4_1_IMPLEMENTATION_ID_DOMAIN="kernel.org"
 # CONFIG_NFS_V4_1_MIGRATION is not set
@@ -4222,7 +4223,7 @@ CONFIG_NLS_CODEPAGE_437=y
 # CONFIG_NLS_CODEPAGE_1250 is not set
 # CONFIG_NLS_CODEPAGE_1251 is not set
 # CONFIG_NLS_ASCII is not set
-CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_1=y
 # CONFIG_NLS_ISO8859_2 is not set
 # CONFIG_NLS_ISO8859_3 is not set
 # CONFIG_NLS_ISO8859_4 is not set