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Mister Spy & Souheyl Bypass Shell

#!/bin/sh

echo "WARNING: The check script $0 is depreciated. Please use check script blkid instead." >&2

not_fs=""
for fs in ext2 ext3 ext4 ext4dev; do
	/lib/cryptsetup/checks/blkid "$1" "$fs" >/dev/null || not_fs="$not_fs $fs"
done
if [ "$not_fs" = " ext2 ext3 ext4 ext4dev" ]; then
	echo " - The device $1 does not contain a valid ext2, ext3, ext4 or ext4dev filesystem."
	exit 1
fi