43 lines
1.6 KiB
Bash
Executable File
43 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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#
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# Credits to hassos-expand original script
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# https://github.com/home-assistant/operating-system/
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DEVICE_OVERLAYFS="$(findfs PARTUUID=f1326040-5236-40eb-b683-aaa100a9afcf)"
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DEVICE_OVERLAYFS_NAME="$(basename "${DEVICE_OVERLAYFS}")"
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DEVICE="/dev/$(lsblk -no pkname "${DEVICE_OVERLAYFS}")"
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PART_NUM="$(cat "/sys/class/block/${DEVICE_OVERLAYFS_NAME}/partition")"
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PART_TABLE="$(sfdisk -lqJ "${DEVICE}")"
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if sfdisk --verify "${DEVICE}" 2>&1 | grep "The backup GPT table is not on the end of the device."; then
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echo "[INFO] Moving GPT backup header to the end"
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sfdisk --relocate gpt-bak-std "${DEVICE}"
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# Reload partition label to get correct .partitiontable.lastlba
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PART_TABLE="$(sfdisk -lqJ "${DEVICE}")"
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fi
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LAST_USABLE_LBA="$(echo "${PART_TABLE}" | jq -r '.partitiontable.lastlba')"
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echo "[INFO] Last usable logical block ${LAST_USABLE_LBA}"
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JQ_FILTER=".partitiontable.partitions[] | select ( .node == \"${DEVICE_OVERLAYFS}\" ) | .start + .size"
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OVERLAYFS_PARTITION_END="$(echo "${PART_TABLE}" | jq "${JQ_FILTER}")"
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echo "[INFO] Overlayfs partition end block ${OVERLAYFS_PARTITION_END}"
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UNUSED_BLOCKS=$(( 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 overlayfs partition needed"
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exit 0
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fi
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echo "[INFO] Update Overlayfs partition ${PART_NUM}"
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echo ", +" | sfdisk --no-reread --no-tell-kernel -N "${PART_NUM}" "${DEVICE}"
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sfdisk -V "${DEVICE}"
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partx -u "${DEVICE}"
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udevadm settle
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partprobe "${DEVICE}"
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echo "[INFO] Resizing the overlayfs partition"
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resize2fs "${DEVICE_OVERLAYFS}"
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echo "[OK]"
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