From 7f1c726441e3069d850b4db5decdd78057632596 Mon Sep 17 00:00:00 2001
From: Chris Peterson <chris.peterson@canonical.com>
Date: Wed, 11 Sep 2024 11:50:13 -0700
Subject: [PATCH] ubuntu: disable kdump-tools by default

We install the kdump-tools package to minimal layer via inclusion in the
desktop-minimal seed, but it is enabled by default. Include a new chroot
hook to set USE_KDUMP=0 to make sure it's disabled by default and let
the installer decide to enable it or not.
---
 .../hooks/020-kdump-tools-disable.chroot      | 21 +++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100755 live-build/ubuntu/hooks/020-kdump-tools-disable.chroot

diff --git a/live-build/ubuntu/hooks/020-kdump-tools-disable.chroot b/live-build/ubuntu/hooks/020-kdump-tools-disable.chroot
new file mode 100755
index 00000000..2a805c73
--- /dev/null
+++ b/live-build/ubuntu/hooks/020-kdump-tools-disable.chroot
@@ -0,0 +1,21 @@
+#! /bin/sh
+
+set -eux
+
+# We install kdump-tools in the minimal layer but it's enabled by default.
+# We disable it here and let subiquity/curtin decide when to enable it later.
+# This is also important so that it's not in some semi-enabled state in the
+# live system where USE_KDUMP=1 but it's missing the crashkernel parameter on
+# the kernel command line. Let's be doubly sure and set USE_KDUMP=0.
+
+case ${PASS:-} in
+    minimal)
+        ;;
+    *)
+        exit 0
+        ;;
+esac
+
+# kdump-tools relies on USE_KDUMP=1 to be enabled, set to USE_KDUMP=0 for off.
+sed -i 's/USE_KDUMP=1/USE_KDUMP=0/' /etc/default/kdump-tools
+