From cb5d66dfdf57d13714e111eda2ef7f9f552d380d Mon Sep 17 00:00:00 2001
From: Natanael Copa <ncopa@alpinelinux.org>
Date: Thu, 24 Jan 2019 17:55:24 +0000
Subject: main/grub: add post-ugprade to import default config

import boot options to /etc/default/grub on upgrade to make sure we can
still boot.

ref #9903
---
 main/grub/grub.post-upgrade | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 main/grub/grub.post-upgrade

(limited to 'main/grub/grub.post-upgrade')

diff --git a/main/grub/grub.post-upgrade b/main/grub/grub.post-upgrade
new file mode 100644
index 0000000000..2489fc13b6
--- /dev/null
+++ b/main/grub/grub.post-upgrade
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+if [ -f /etc/grub/default ]; then
+	. /etc/grub/default
+fi
+
+if [ -z "$GRUB_CMDLINE_LINUX_DEFAULT" ]; then
+	set -- $(cat /proc/cmdline)
+	bootopts=
+	for opt; do
+		case "$opt" in
+		initrd=*|BOOT_IMAGE=*|root=*|rootflags=*) ;;
+		*) bootopts="$bootopts $opt";;
+		esac
+	done
+	mkdir -p /etc/default
+	echo "GRUB_CMDLINE_LINUX_DEFAULT=\"$bootopts\"" >> /etc/default/grub
+fi
+
-- 
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