ssh-at-boot/ssh-at-boot
2020-12-22 23:24:25 +01:00

46 lines
788 B
Bash

#! /usr/bin/env bash
# abort on nonzero exitstatus
set -o errexit
# abort on unbound variable
set -o nounset
# don't hide errors within pipes
set -o pipefail
if [ $# -eq 0 ]
then
echo "No argument supplied. Please specify the unziped Raspberry Pi OS file."
exit 1
fi
mkdir -p /mnt/sdcard_1
# extract the start offset
sector_offset=$(fdisk --list ${1} | awk '/W95 FAT32/{print $2}')
# multiply it with the sector size
byte_offset=$((${sector_offset} * 512))
# mount the first partition
mount --options loop,offset=${byte_offset} ${1} /mnt/sdcard_1
if [ $? -eq 0 ]
then
# create the file
touch /mnt/sdcard_1/ssh
if [ $? -eq 0 ]
then
echo "File created."
else
echo "Unable to create the file."
fi
# unmount
umount /mnt/sdcard_1
else
echo "Can't mount the file."
fi