burn_emmc.sh

#!/bin/bash

function pt_error()
{
    echo -e "\033[1;31mERROR: $*\033[0m"
}

function pt_warn()
{
    echo -e "\033[1;31mWARN: $*\033[0m"
}

function pt_info()
{
    echo -e "\033[1;32mINFO: $*\033[0m"
}

function pt_ok()
{
    echo -e "\033[1;33mOK: $*\033[0m"
}

if [ $UID -ne 0 ]
    then
    pt_error "Please run as root."
    exit
fi


out=/dev/mmcblk1

pt_info "Umounting $out (eMMC), please wait..."
sync
umount ${out}* >/dev/null 2>&1
sleep 1
sync

set -e
pt_info "Formating eMMC $out ..."

part_position=20480   # KiB
boot_size=80          # MiB
# Create beginning of disk
pt_info "Zeroing mbr on $out ..."
dd if=/dev/zero bs=1M count=$((part_position/1024)) of="$out"
sync

pt_info "Creating partition on $out ..."
# Add partition table
cat <<EOF | fdisk "$out"
o
n
p
1
$((part_position*2))
+${boot_size}M
t
83
n
p
2
$((part_position*2 + boot_size*1024*2))

t
2
83
w
EOF

sleep 1
sync
partprobe -s ${out}
sync

pt_warn "Formating $out ..."
# Create boot file system
dd if=/dev/zero bs=1M count=${boot_size} of=${out}p1
sync
mkfs.ext4 -F -b 4096 -E stride=2,stripe-width=1024 -L emmcboot ${out}p1

# Create ext4 file system for rootfs
mkfs.ext4 -F -b 4096 -E stride=2,stripe-width=1024 -L emmcrootfs ${out}p2
sync
sudo tune2fs -O ^has_journal ${out}p2
sync

pt_info "Geometry created and eMMC '$out' formatted, now flashing the image.. please wait..."
sleep 2
sync

sudo partprobe
sleep 2
sync
sudo partprobe ${out}
sleep 2


set -e
pt_info "Writing to eMMC, please wait..."
dd if=./ub-m64-emmc.bin conv=notrunc bs=1k seek=8 of=$out


mkdir -p erootfs
sudo partprobe ${out}
sleep 2
sync
sudo mount ${out}p2 erootfs
tar -xvpzf rootfs_m64_a64_rc1.tar.gz -C ./erootfs --numeric-ow
sync
sudo umount erootfs
rm -fR erootfs

mkdir eboot
sudo mount ${out}p1 eboot
tar -xvzf boot_m64_a64_rc1.tar.gz -C ./eboot --no-same-owner
sync
sudo umount eboot
rm -fR eboot
sync
pt_info "Finished eMMC flash, reboot without the SD CARD!"
pt_ok "type now: sudo shutdown -h now , wait.. and then remove the SD card and power the board again. Enjoy!"