From fa0adc957cc2ef3629b979e2ee628f0d3bc002a2 Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Thu, 26 Oct 2017 23:20:11 +0200
Subject: Initial commit

---
 platten-finden | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)
 create mode 100755 platten-finden

diff --git a/platten-finden b/platten-finden
new file mode 100755
index 0000000..64ef479
--- /dev/null
+++ b/platten-finden
@@ -0,0 +1,63 @@
+#!/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
-- 
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