From 4219b173ca9459ba19aa58ca01abe864c0989980 Mon Sep 17 00:00:00 2001
From: Lars Wirzenius <liw@liw.fi>
Date: Sat, 10 Sep 2022 19:39:11 +0300
Subject: feat: write-and-config.sh checks that given device is a block device

Sponsored-by: author
---
 write-and-config.sh | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'write-and-config.sh')

diff --git a/write-and-config.sh b/write-and-config.sh
index 17bf0ac..ce21afe 100755
--- a/write-and-config.sh
+++ b/write-and-config.sh
@@ -5,6 +5,11 @@ set -euo pipefail
 config="$1"
 dev="$2"
 
+if ! blkid "$dev" >/dev/null; then
+	echo "$dev is not a block device" 1>&2
+	exit 1
+fi
+
 echo "Unmounting everything in $dev"
 umount -fv "$dev"* || true
 echo "Write installer.img to $dev"
-- 
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