107 lines
2.1 KiB
Bash
Executable file
107 lines
2.1 KiB
Bash
Executable file
#!/usr/bin/env bash
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# SPDX-FileCopyrightText: 2026 Laborratte5 laborratte5@gmail.com
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# SPDX-License-Identifier: GPL-3.0-only
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flash_sd () {
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img_file=$1
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sd_card=$2
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echo "Flashing $img_file to $sd_card ..."
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xzcat --stdout $img_file | dd of=$sd_card status=progress
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}
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enlarge_partition () {
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device=$1
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partnr=2
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echo "Resize main partition"
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sfdisk --backup $device -N $partnr << EOF
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,+
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print
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EOF
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echo "Resize filesystem"
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e2fsck -f "$device"p$partnr
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resize2fs -p "$device"p$partnr
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}
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mount_temporary () {
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partnr=$1
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temp_mnt_point=$(mktemp -d)
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mount "$SD_CARD"p"$partnr" $temp_mnt_point
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echo $temp_mnt_point
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}
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unmount_temporary () {
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handle=$1
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umount $1
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rmdir $1
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}
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provision_network () {
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mnt_point=$1
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echo "Provision network"
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cat > $mnt_handle/network-config <<EOF
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network:
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version: 2
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ethernets:
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eth0:
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addresses: [$NET_ADDR]
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routes:
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- to: default
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via: $DEFAULT_GATEWAY
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EOF
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}
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provision_user () {
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mnt_point=$1
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echo "Provision user"
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if [ -f $ssh_key ]; then
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# Load key from file
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echo "Loading ssh key from file $ssh_key"
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ssh_key=$(<$ssh_key)
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fi
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cat > $mnt_point/user-data <<EOF
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#cloud-config
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hostname: raspberry-pi
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manage_etc_hosts: true
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timezone: Europe/Berlin
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package_update: true
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package_upgrade: true
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enable_ssh: true
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users:
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- name: $username
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group: users,adm,dialout,audio,netdev,video,plugdev,cdrom,games,input,gpio,spi,i2c,render,sudo
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shell: /bin/bash
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lock_passwd: false
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plain_text_passwd: $userpw
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sudo: ALL=(ALL) ALL
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ssh_authorized_keys:
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- $ssh_key
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EOF
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}
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read -e -p "Compressed Image file: " IMG_FILE
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read -e -p "SD Card: " SD_CARD
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read -e -p "IP-Address with prefix (comma separated): " NET_ADDR
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read -e -p "Default Gateway: " DEFAULT_GATEWAY
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read -e -p "Username: " username
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read -s -p "Password: " userpw
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echo
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read -e -p "SSH-Key: " ssh_key
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echo
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flash_sd "$IMG_FILE" "$SD_CARD"
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enlarge_partition "$SD_CARD"
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mnt_handle=$(mount_temporary "1")
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provision_network $mnt_handle
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provision_user $mnt_handle
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unmount_temporary $mnt_handle
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