Add file as a dependency due to #194 , should fix #195

Author: guysoft

README.rst

@@ -57,6 +57,7 @@ Requirements
 #. jq
 #. git
 #. realpath
+#. file
 #. sudo (the script itself calls it, running as root without sudo won't work)
 #. p7zip-full
 #. Python 3.2+

src/Dockerfile

@@ -14,6 +14,7 @@ RUN set -x \
         qemu \
         qemu-user-static/bullseye-backports \
         sudo \
+        file \
         fdisk \
         jq \
         zip \