penguin/monok8s

alpine/sync-loop.sh

raw · 570 bytes

#!/bin/bash
DEVICE="$1"
FAKE_DEV="/tmp/dev"

mkdir -p "$FAKE_DEV"

echo "Refreshing partition table..."
partx -u "$DEVICE" 2>/dev/null || partx -a "$DEVICE"

# Find partitions and their Major:Minor numbers
lsblk -rn -o NAME,MAJ:MIN "$DEVICE" | while read -r NAME MAJMIN; do
    # Skip the parent loop0
    if [[ "$NAME" == "loop0" ]]; then continue; fi

    PART_PATH="$FAKE_DEV/$NAME"
    MAJOR=$(echo $MAJMIN | cut -d: -f1)
    MINOR=$(echo $MAJMIN | cut -d: -f2)

    echo "Creating node: $PART_PATH (b $MAJOR $MINOR)"
    mknod "$PART_PATH" b "$MAJOR" "$MINOR"
done