diff --git a/Dockerfile b/Dockerfile
index f5d3046..795c3fa 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -29,11 +29,6 @@ RUN --mount=type=cache,sharing=shared,target=/var/cache \
 #WORKDIR /build
 #COPY rootfs/multistrap_nvme.conf multistrap.conf
 
-#RUN --mount=type=cache,sharing=shared,target=/var/cache \
-#    --mount=type=cache,sharing=shared,target=/var/lib/apt/lists \
-#    --mount=type=tmpfs,target=/usr/share/man \
-#    --mount=type=tmpfs,target=/usr/share/doc \
-#    eatmydata multistrap -f multistrap.conf
 
 
 FROM builder as build_image
@@ -44,4 +39,3 @@ COPY rootfs/setup_rootfs.sh ./rv64-port/
 COPY rootfs/setup_rootfs.sh /tmp 
 
 CMD /builder/build.sh ${KERNEL_VERSION}
-
diff --git a/rootfs/multistrap_nvme.conf b/rootfs/multistrap_nvme.conf
deleted file mode 100644
index a31d197..0000000
--- a/rootfs/multistrap_nvme.conf
+++ /dev/null
@@ -1,27 +0,0 @@
-[General]
-arch=riscv64
-directory=/build/rv64-sid
-unpack=true
-noauth=false
-bootstrap=Debian
-aptsources=Debian
-cleanup=true
-
-[Debian]
-packages=adduser base-passwd base-files bash bsdutils coreutils dash 
-packages=apt debconf debian-archive-keyring debianutils diffutils dpkg e2fsprogs findutils gpgv grep gzip hostname  libacl1 libapt-pkg6.0 libattr1 libaudit-common libaudit1 libblkid1 libbz2-1.0 libc-bin libc6 libcap-ng0 libcap2 libcom-err2 libcrypt1 libdb5.3 libdebconfclient0 libext2fs2 libffi8 libgcc-s1 libgcrypt20 libgmp10 libgnutls30 libgpg-error0 libhogweed6 libidn2-0 liblz4-1 liblzma5 libmount1 libnettle8 libpam-modules libpam-modules-bin libpam-runtime libpam0g libpcre2-8-0 libpcre3 libseccomp2 libselinux1 libsemanage-common libsemanage2 libsepol2 libsmartcols1 libss2 libstdc++6 libtasn1-6 libtinfo6 libudev1 libunistring5 libuuid1 libxxhash0 libzstd1 login logsave lsb-base mawk mount ncurses-base ncurses-bin passwd perl-base sed  tar tzdata zstd
-packages=zlib1g apt-utils cpio cron debconf-i18n dmidecode dmsetup fdisk ifupdown iproute2 iputils-ping kmod less libapparmor1 libargon2-1 libbpf1 libbsd0 libcap2-bin libcryptsetup12 libdevmapper1.02.1 libedit2 libelf1 libestr0 libfastjson4 libfdisk1 libip4tc2 libjansson4 libjson-c5 libkmod2 liblocale-gettext-perl liblognorm5 libmd0 libmnl0 libncurses6 libncursesw6 libnewt0.52 libnftables1 libnftnl11 libpopt0 libreadline8 libslang2 libssl3 libtext-charwidth-perl libtext-iconv-perl libtext-wrapi18n-perl libxtables12 logrotate nano netbase nftables procps readline-common  sensible-utils
-packages=pciutils p11-kit udev vim whiptail xxd
-packages=util-linux util-linux-extra rsyslog dbus
-packages=systemd systemd-sysv libsystemd0
-packages=tasksel tasksel-data
-packages=net-tools openssh-server network-manager
-packages=curl gpg openssl ca-certificates sudo psmisc swig tmux
-packages=lshw lm-sensors
-packages=u-boot-menu initramfs-tools
-packages=eatmydata
-source=http://deb.debian.org/debian/
-keyring=debian-archive-keyring
-suite=unstable
-components=main contrib non-free
-omitdebsrc=true
diff --git a/rootfs/setup_rootfs.sh b/rootfs/setup_rootfs.sh
index 94471ab..627ec74 100755
--- a/rootfs/setup_rootfs.sh
+++ b/rootfs/setup_rootfs.sh
@@ -61,6 +61,12 @@ fi
 
 kernel_image=${lib_dir##*/}
 
+# set default dtb file, please verify your board version
+
+cd ${lib_dir}/starfive/
+ln -s jh7110-starfive-visionfive-2-v1.2a.dtb jh7110-visionfive-v2.dtb
+cd -
+
 
 # cp your latest dtb file,e.g, cp /usr/lib/linux-image-xx-riscv64
 # need you confirm it here
@@ -70,20 +76,11 @@ EOF
 
 cat /boot/extlinux/extlinux.conf
 
-#dpkg-reconfigure ${kernel_image}
 
-# update u-boot
-#update-initramfs -c -k all
+sed -i -e 's|append |append root=/dev/mmcblk1p3 |' /boot/extlinux/extlinux.conf
 
 u-boot-update
 
-# boot from sd card
-cat <<EOF >> /boot/scripts.txt
-sed -i -e 's|root=[^ ]*|root=/dev/mmcblk1p3|' /boot/extlinux/extlinux.conf
-cd ${lib_dir}/starfive/
-ln -s jh7110-starfive-visionfive-2-v1.2a.dtb jh7110-visionfive-v2.dtb
-cd - 
-EOF
 
 # double check
 cat /boot/extlinux/extlinux.conf