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meta-rpi-diya/recipes-diya/diya-overlay/files/expandfs.sh
2023-08-02 10:13:00 +02:00

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#! /bin/sh
if [[ $(/usr/bin/id -u) -ne 0 ]]; then
echo "$0 shall be run as root"
exit 1
fi
line=$(
sed -e 's/\s*\([\+0-9a-zA-Z]*\).*/\1/' << EOF | fdisk /dev/mmcblk0 | grep /dev/mmcblk0p4
p
q
EOF
)
echo "Partition: $line"
#start_sector=$(echo "$line" | cut -d' ' -f14)
start_sector=$(echo "$line" | cut -d' ' -f15)
echo "Start sector is: $start_sector"
if [ -z "$start_sector" ]; then
echo "Cannot find the start sector"
exit 1
fi
echo "Expanding the partition"
sed -e 's/\s*\([\+0-9a-zA-Z]*\).*/\1/' << EOF | fdisk /dev/mmcblk0
d # delete partition
4 # number 4
n # new partition
p # primary partition
4 # partition number 4
$start_sector
# default - end of disk
p # print the in-memory partition table
w # write the partition table
q # and we're done
EOF