7959113c97
* Use systemd-growfs instead of resize2fs (#1106) Since systemd 236 systemd has a built-in file system growing mechanism. The mechanism relies on the kernels online file system resize capabilities instead of the external resize2fs utility. Online resizing is supposedly much faster since the kernel takes care of things. This also makes sure that external file systems get resized which previously have not been taken care of. * Drop HA OS specific file system resizing Since we have systemd-growfs in place now we can drop our file system resizing code. * Make sure /dev/disk/by-label/hassos-data is present after resizing Note: systemd will retry mnt-data.mount later, so at least in theory this shouldn't really matter. However, the journal has a lot of churn due to that reordering.
69 lines
2.5 KiB
Bash
Executable File
69 lines
2.5 KiB
Bash
Executable File
#!/bin/sh
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# ==============================================================================
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# HassOS partition expander
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# ==============================================================================
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set -e
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DEVICE_CHILD="$(findfs LABEL="hassos-data")"
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DEVICE_CHILD_NAME="$(basename "${DEVICE_CHILD}")"
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DEVICE_ROOT_NAME="$(lsblk -no pkname "${DEVICE_CHILD}")"
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DEVICE_ROOT="/dev/${DEVICE_ROOT_NAME}"
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PART_NUM="$(cat "/sys/class/block/${DEVICE_CHILD_NAME}/partition")"
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# Get partition label type
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PART_TABLE="$(sfdisk -lqJ "${DEVICE_ROOT}")"
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PART_LABEL="$(echo "${PART_TABLE}" | jq -r '.partitiontable.label')"
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if [ "${PART_LABEL}" = "gpt" ]; then
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echo "[INFO] Detected GPT partition label"
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# We cannot use .partitiontable.lastlba from the json output as we might
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# still have the backup GPT not at the end of the disk. Calculate last
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# usable LBA using disk size
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LAST_USABLE_LBA=$(( $(cat "/sys/class/block/${DEVICE_ROOT_NAME}/size") - 34 ))
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else
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echo "[INFO] Detected MBR partition label"
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LAST_USABLE_LBA=$(cat "/sys/class/block/${DEVICE_ROOT_NAME}/size")
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fi
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# Calculate end of data partition
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JQ_FILTER=".partitiontable.partitions[] | select ( .node == \"${DEVICE_CHILD}\" ) | .start + .size"
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DATA_PARTITION_END="$(echo "${PART_TABLE}" | jq "${JQ_FILTER}")"
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# Need resize? Ignore everything less than 8MB since that could be partition
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# alignment rounding...
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UNUSED_BLOCKS=$(( LAST_USABLE_LBA - DATA_PARTITION_END ))
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if [ "${UNUSED_BLOCKS}" -le "16384" ]; then
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echo "[INFO] No resize of data partition needed"
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exit 0
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fi
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echo "[INFO] Update hassos-data partition ${PART_NUM}"
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if [ "${PART_LABEL}" = "gpt" ]; then
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sgdisk -e "${DEVICE_ROOT}"
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sgdisk -d "${PART_NUM}" \
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-n "${PART_NUM}:0:0" \
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-c "${PART_NUM}:hassos-data" \
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-t "${PART_NUM}:0FC63DAF-8483-4772-8E79-3D69D8477DE4" \
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-u "${PART_NUM}:a52a4597-fa3a-4851-aefd-2fbe9f849079" \
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"${DEVICE_ROOT}"
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sgdisk -v "${DEVICE_ROOT}"
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else
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echo ", +" | sfdisk -N "${PART_NUM}" "${DEVICE_ROOT}" --force
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sfdisk -V "${DEVICE_ROOT}"
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fi
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# Reload partition table
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partx -u "${DEVICE_ROOT}"
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udevadm settle
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# Make sure /dev/disk/by-label/hassos-data is actually present before exiting.
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# This avoids a race condition with mnt-data.mount which might fail to bind
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# otherwise:
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# Bound to unit dev-disk-by\x2dlabel-hassos\x2ddata.device, but unit isn't active.
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if ! systemctl start "dev-disk-by\\x2dlabel-hassos\\x2ddata.device"; then
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echo "[ERROR] Data partition not found!"
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exit 1
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fi
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echo "[INFO] Finished hassos-data partition resizing"
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