From d0c4ef6160633559f164c699319500cd3db27786 Mon Sep 17 00:00:00 2001
From: Michael Lynch <mtlynch@users.noreply.github.com>
Date: Tue, 17 Jan 2023 07:27:30 -0500
Subject: [PATCH] Specify /bin/bash as the tinypilot user's shell (#1261)

Without a shell specified, the user defaults to /usr/sbin/nologin, which
prevents us from executing commands as the tinypilot user through sudo
su.

I tested this on a clean install of Raspbian Buster Lite, and it fixes
the `sudo su` issue.

Fixes #1260

<a data-ca-tag
href="https://codeapprove.com/pr/tiny-pilot/tinypilot/1261"><img
src="https://codeapprove.com/external/github-tag-allbg.png" alt="Review
on CodeApprove" /></a>
---
 debian-pkg/debian/tinypilot.postinst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/debian-pkg/debian/tinypilot.postinst b/debian-pkg/debian/tinypilot.postinst
index 4c0161065..e6964f990 100755
--- a/debian-pkg/debian/tinypilot.postinst
+++ b/debian-pkg/debian/tinypilot.postinst
@@ -21,6 +21,9 @@ getent group "${TINYPILOT_GROUP}" > /dev/null || \
 # adduser is idempotent, so we don't need to check existence first.
 adduser \
   --system \
+  `# We have to specify a shell to override the default /usr/sbin/nologin, ` \
+  `# which prevents us from executing commands through "sudo su".` \
+  --shell /bin/bash \
   --ingroup "${TINYPILOT_GROUP}" \
   --home "${TINYPILOT_HOME_DIR}" \
   "${TINYPILOT_USER}"