From a7e1fb1798c08c48bad73af5fb268170b1aef031 Mon Sep 17 00:00:00 2001
From: zador-blood-stained <zador-blood-stained@users.noreply.github.com>
Date: Thu, 29 Sep 2016 19:17:38 +0300
Subject: [PATCH] Improve initrd cleanup logic

---
 makeboarddeb.sh | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/makeboarddeb.sh b/makeboarddeb.sh
index 313cd5c034..17f4e8d805 100644
--- a/makeboarddeb.sh
+++ b/makeboarddeb.sh
@@ -150,8 +150,18 @@ create_board_package()
 			exit 0
 		fi
 	fi
-	# delete old initrd images
-	find /boot -name "initrd.img*" ! -name "*\$version" -printf "Removing obsolete file %f\n" -delete
+	STATEDIR=/var/lib/initramfs-tools
+	version_list="\$(ls -1 "\${STATEDIR}" | linux-version sort --reverse)"
+	for v in \$version_list; do
+		if linux-version compare \$v ne \$version; then
+			# try to delete delete old initrd images via update-initramfs
+			update-initramfs -d -k \$v
+			# delete unused state files
+			find \$STATEDIR -type f ! -name "\$version" -printf "Removing obsolete file %f\n" -delete
+			# delete unused initrd images
+			find /boot -name "initrd.img*" ! -name "*\$version" -printf "Removing obsolete file %f\n" -delete
+		fi
+	done
 	EOF
 	chmod +x $destination/etc/kernel/preinst.d/initramfs-cleanup