From 62ac956836aa78455f310c9d3d1ab7e525d5f43a Mon Sep 17 00:00:00 2001
From: MatMoul <matmoul@gmail.com>
Date: Tue, 28 Apr 2026 00:33:27 +0200
Subject: [PATCH] fix: reorder wipe method fallback sequence

---
 .continue/rules/project.md |  4 ++--
 README.md                  | 12 ++++++++++++
 mtm-ddwipe                 | 33 ++++++++++++++++-----------------
 3 files changed, 30 insertions(+), 19 deletions(-)

diff --git a/.continue/rules/project.md b/.continue/rules/project.md
index 9b411cb..310d482 100644
--- a/.continue/rules/project.md
+++ b/.continue/rules/project.md
@@ -17,11 +17,11 @@ description: mtm-ddwipe project conventions
 - Keep optional tools optional.
 - Use extra wipe methods only if the command is present.
 - Use `ddrescue` or `dd_rescue` only after `dd` fails.
-- Keep `nvme-cli` and `hdparm` optional.
+- Keep `nvme` and `hdparm` optional.
 - Use `nvme` and `hdparm` only on matching device types.
 - Do not make new external tools required.
 - Keep changes minimal and preserve intent.
-- Keep `./continue/rules/project.md` aligned and concise.
+- Keep this file aligned and concise.
 - If non-interactive support is added, make it an opt-in safety flag.
 
 # Project identity
diff --git a/README.md b/README.md
index 3f18814..5847a34 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,14 @@
 # mtm-ddwipe
 
+Wipe a block device.
+
+Warning: destructive and irreversible. The target must be a real block device, not mounted, and not in use.
+
+Usage:
+mtm-ddwipe DEVICE
+
+Options:
+- `-h`, `--help`
+
+Optional tools: `blkdiscard`, `ddrescue`, `dd_rescue`, `nvme`, `hdparm`.
+
diff --git a/mtm-ddwipe b/mtm-ddwipe
index 32d4902..e61511b 100644
--- a/mtm-ddwipe
+++ b/mtm-ddwipe
@@ -14,9 +14,8 @@ Wipe a block device.
 
 Warnings:
   - Destructive and irreversible.
-  - Target must not be mounted or in use.
-  - Optional tools: blkdiscard, ddrescue, dd_rescue, nvme-cli, hdparm.
-  - nvme and hdparm need matching device types.
+  - Target must be a real block device, not mounted, and not in use.
+  - Optional tools: blkdiscard, ddrescue, dd_rescue, nvme, hdparm.
   - dd fallback may take a long time.
 
 Version: ${VERSION}
@@ -217,20 +216,6 @@ wipe_dev() {
 		return
 	fi
 
-	echo ""
-	if wipe_with_nvme "$dev"; then
-		echo ""
-		log "Device $dev wiped."
-		return
-	fi
-
-	echo ""
-	if wipe_with_hdparm "$dev"; then
-		echo ""
-		log "Device $dev wiped."
-		return
-	fi
-
 	echo ""
 	if wipe_with_dd "$dev"; then
 		echo ""
@@ -252,6 +237,20 @@ wipe_dev() {
 		return
 	fi
 
+	echo ""
+	if wipe_with_nvme "$dev"; then
+		echo ""
+		log "Device $dev wiped."
+		return
+	fi
+
+	echo ""
+	if wipe_with_hdparm "$dev"; then
+		echo ""
+		log "Device $dev wiped."
+		return
+	fi
+
 	die "Wipe failed. The device may not be fully overwritten."
 }