mirror of
https://github.com/Luzifer/flashpi.git
synced 2024-12-20 10:01:16 +00:00
95 lines
2 KiB
Bash
Executable file
95 lines
2 KiB
Bash
Executable file
#!/bin/bash
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set -euxo pipefail
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SDCARD_DEVICE=$2
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SOURCE_IMAGE=${SOURCE_IMAGE:-none}
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STORAGE_DIR=${STORAGE_DIR:-/tmp}
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SYSTEM_NAME=$1
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if ( test "$(uname)" != "Linux" ); then
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echo "This script will only work on Linux. OSX is not capable of writing ext4 filesystems"
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exit 1
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fi
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if ( test "$(whoami)" != "root" ); then
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echo "Please execute me as user root or using sudo for flashing / mounting SDCARD"
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exit 1
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fi
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if [ -z "$SYSTEM_NAME" ]; then
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echo "You need to provide a system name!"
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exit 1
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fi
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if [ -z "$SDCARD_DEVICE" ]; then
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echo "You need to provide a device to modify!"
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exit 1
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fi
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if ! [ -f "${SOURCE_IMAGE}" ]; then
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echo "Did not find SOURCE_IMAGE, downloading / detecting once"
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if ( test $(ls -1tr ${STORAGE_DIR}/*raspbian-*-lite.img | wc -l) -lt 1 ); then
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curl -L https://downloads.raspberrypi.org/raspbian_lite_latest -o /tmp/raspbian.zip
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unzip /tmp/raspbian.zip -d ${STORAGE_DIR}
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rm /tmp/raspbian.zip
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fi
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SOURCE_IMAGE=$(ls -1tr ${STORAGE_DIR}/*raspbian-*-lite.img | head -n1)
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fi
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echo "Flashing Raspian image"
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dd if=${SOURCE_IMAGE} of=${SDCARD_DEVICE} bs=1048576
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echo "Adjusting root filesystem"
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PART_START=$(parted ${SDCARD_DEVICE} -ms unit s p | grep "^2" | cut -f 2 -d: | sed "s/s$//")
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[ "$PART_START" ] || return 1
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fdisk ${SDCARD_DEVICE} <<EOF
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p
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d
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2
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n
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p
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2
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$PART_START
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p
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w
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$(sleep 5)
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EOF
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e2fsck -f "${SDCARD_DEVICE}2"
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resize2fs "${SDCARD_DEVICE}2"
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e2fsck -f "${SDCARD_DEVICE}2"
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HERE=$(pwd)
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echo "Mounting SDCard"
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mkdir /tmp/pi
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mount "${SDCARD_DEVICE}2" /tmp/pi/
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cd /tmp/pi
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echo "Configuring network"
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cp "${HERE}/interfaces.txt" etc/network/interfaces
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echo "Setting hostname to ${SYSTEM_NAME}"
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echo "${SYSTEM_NAME}" > etc/hostname
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echo "Configuring SSH-key"
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mkdir -p home/pi/.ssh
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cp "${HERE}/pubkey.txt" home/pi/.ssh/authorized_keys
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echo "Fixing permissions"
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chown -R 1000:1000 home/pi/.ssh/
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chmod 0700 home/pi/.ssh
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chmod 0600 home/pi/.ssh/authorized_keys
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echo "Enabling SSH"
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ln -s /lib/systemd/system/ssh.socket etc/systemd/system/sockets.target.wants/ssh.socket
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echo "Unmounting"
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cd ~
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umount /tmp/pi
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rmdir /tmp/pi
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echo "Done."
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