# Firmwares without UBI image should be flashed "normally"
local root_type=$(identify $dir/root)
- [ "$root_type" != "ubi" ] && return
+ [ "$root_type" != "ubi" ] && {
+ echo "Provided firmware doesn't use UBI for rootfs."
+ return
+ }
# Prepare TRX file with just a kernel that will replace current one
local linux_length=$(grep "\"linux\"" /proc/mtd | sed "s/mtd[0-9]*:[ \t]*\([^ \t]*\).*/\1/")
echo "Unable to find \"linux\" partition size"
exit 1
}
- linux_length=$((0x$linux_length + 28))
+ linux_length=$((0x$linux_length))
+ local kernel_length=$(wc -c $dir/kernel | cut -d ' ' -f 1)
+ [ $kernel_length -gt $linux_length ] && {
+ echo "New kernel doesn't fit \"linux\" partition."
+ return
+ }
rm -f /tmp/null.bin
rm -f /tmp/kernel.trx
touch /tmp/null.bin
otrx create /tmp/kernel.trx \
- -f $dir/kernel -b $linux_length \
+ -f $dir/kernel -b $(($linux_length + 28)) \
-f /tmp/null.bin
# Prepare UBI image (drop unwanted extra blocks)
while [ "$(dd if=$dir/root skip=$ubi_length bs=1 count=4 2>/dev/null)" = "UBI#" ]; do
ubi_length=$(($ubi_length + 131072))
done
- echo "ubi_length: $ubi_length"
dd if=$dir/root of=/tmp/root.ubi bs=131072 count=$((ubi_length / 131072)) 2>/dev/null
# Flash
local trx="$1"
[ "$(platform_flash_type)" == "nand" ] && {
- echo "Flashing firmware without UBI for rootfs. All erase counters will be lost."
+ echo "Writing whole image to NAND flash. All erase counters will be lost."
}
case "$file_type" in