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#!/bin/bash

all=$(
  find /dev -mindepth 1 -maxdepth 1 -type b -regextype grep \
    \( \
      -regex '.*/sd[a-z]\+' -o \
      -regex '.*/md[0-9]\+' -o \
      -regex '.*/dm-[0-9]\+' \
    \) \
    -printf '%f\n' | \
    sort -u
)

crypts=$(
  grep '^[^#]' /etc/crypttab | \
    awk '{print $2}' | \
    xargs -rn1 readlink -f | \
    sed 's|^.*/||' | \
    sort -u
)

legs=$(
  sed -n '
    s/^md[0-9]\+ : active raid[0156] //
    T
    p
  ' /proc/mdstat | \
    tr ' ' '\n' | \
    sed '
      s/\[[^]]\+]$//
      /^sd/s/[0-9]\+$//
    ' | \
    sort -u
)

mounts=$(
  mount | \
    cut -d' ' -f1 | \
    grep '^/dev/\(sd[a-z]\+\|md[0-9]\+\|dm-[0-9]\+\)$' | \
    sed 's|^.*/||'
)

{
  echo "$all"
  echo "$crypts"
  echo "$legs"
  echo "$mounts"
} | \
  sort | \
  uniq -u | \
  while read dev; do
    printf '%s:' "$dev"
    if mdadm --examine "/dev/$dev" &> /dev/null; then
      printf ' mdadm'
    fi
    if cryptsetup luksDump "/dev/$dev" &> /dev/null; then
      printf ' luks'
    fi
    if e2label "/dev/$dev" &> /dev/null; then
      printf ' ext[234]'
    fi
    printf '\n'
  done