0a2fdf47b3
* Add OS Agent * Do go vendoring as part of the buildroot build * Allow to skip confirmation in datactl
77 lines
2.5 KiB
Bash
Executable File
77 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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# ==============================================================================
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# Home Assistant OS data partition handling
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# ==============================================================================
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set -e
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# Use current mount point. This avoids "Can't be the same disk!" error
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# when using a drive which has been used as a data drive previously.
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DATA_DEVICE_CHILD="$(findmnt --noheadings --output=source /mnt/data)"
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DATA_DEVICE_ROOT="/dev/$(lsblk -no pkname "${DATA_DEVICE_CHILD}")"
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if [ "${DATA_DEVICE_ROOT}" = "" ]; then
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echo "[ERROR] Data disk device not found!"
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exit 1
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fi
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# Move command
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if [ "${1}" = "move" ] && [ -e "${2}" ]; then
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NEW_DEVICE_ROOT="${2}"
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# Check device
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if ! lsblk "${NEW_DEVICE_ROOT}" | grep disk > /dev/null 2>&1; then
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echo "[ERROR] Is not disk!"
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exit 1
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elif [ "${NEW_DEVICE_ROOT}" = "${DATA_DEVICE_ROOT}" ]; then
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echo "[ERROR] Can't be the same disk!"
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exit 1
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fi
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# Flag device
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if [ -z "${DATACTL_NOCONFIRM}" ]; then
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echo "WARNING: All partitions on ${NEW_DEVICE_ROOT} will be deleted!"
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printf "Enter \"yes\" to confirm: "
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read -r confirm
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if [ "${confirm}" != "yes" ]; then
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echo "Aborting."
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exit 1
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fi
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fi
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# Create GPT partition table with a single data partition
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cat << EOF | sfdisk --wipe-partitions=always --wipe=always "${NEW_DEVICE_ROOT}"
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label: gpt
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uuid=a52a4597-fa3a-4851-aefd-2fbe9f849079, type=0FC63DAF-8483-4772-8E79-3D69D8477DE4, name=hassos-data-external
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EOF
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# Since we create a new partition table etc. we are guaranteed the target
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# partition is partition 1
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NEW_DEVICE_PART_SIZE=$(cat "/sys/class/block/$(basename "${NEW_DEVICE_ROOT}")1/size")
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OLD_DEVICE_PART_SIZE=$(cat "/sys/class/block/$(basename "${DATA_DEVICE_CHILD}")/size")
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if [ "${NEW_DEVICE_PART_SIZE}" -lt "${OLD_DEVICE_PART_SIZE}" ]; then
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echo "[INFO] Target device too small!"
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echo "label: gpt" | sfdisk "${NEW_DEVICE_ROOT}"
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exit 1
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fi
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touch "/mnt/overlay/move-data"
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cat << EOF
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Disk ${NEW_DEVICE_ROOT} has been prepared to be used as data drive and the data
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move has been scheduled for the next reboot. Please reboot the device now and
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make sure to leave the disk connected to the system from now on.
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EOF
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else
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cat << EOF
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Usage: datactl move <device>
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Moves data partition to external device provided by <device> (without partition
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number). A new partition table and a partition for the complete device will be
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created by datactl.
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EOF
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fi
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