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#!/bin/bash
###
# A Helper function to get partition start offset and total size
# ARG 1 : Partition type
# Accepted Values : 'root', 'boot'
# ARG 2 : Image path
###
get_partition_start_offset() {
if [ $1 = "root" ]; then
partnum=2
elif [ $1 = "boot" ]; then
partnum=1
else
echo "Invalid partition type $1"
exit 1
fi
echo $(($(fdisk -lu $2 | grep $(basename $2)$partnum | awk '{print $2}') * 512))
}
###
# A Helper function to get partition start offset and total size
# ARG 1 : Partition type
# Accepted Values : 'root', 'boot'
# ARG 2 : Image path
###
get_partition_size() {
if [ $1 = "root" ]; then
partnum=2
elif [ $1 = "boot" ]; then
partnum=1
else
echo "Invalid partition type $1"
exit 1
fi
echo $(($(fdisk -lu $2 | grep $(basename $2)$partnum | awk '{print $4}') * 512))
}