From: Tony Ambardar <itugrok@yahoo.com>
Date: Sat, 3 Dec 2022 07:13:22 +0000 (-0800)
Subject: base-files: stage2: add 'tail' to sysupgrade environment
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=9cbc825b30a60c4c4b466301b87e15e59b107f24;p=openwrt%2Fstaging%2Fnbd.git

base-files: stage2: add 'tail' to sysupgrade environment

This is used to access footer data in firmare files, and is simpler and
less error-prone than using 'dd' with calculated offsets.

Signed-off-by: Tony Ambardar <itugrok@yahoo.com>
---

diff --git a/package/base-files/files/lib/upgrade/stage2 b/package/base-files/files/lib/upgrade/stage2
index 6314d40646..f4db88d31e 100755
--- a/package/base-files/files/lib/upgrade/stage2
+++ b/package/base-files/files/lib/upgrade/stage2
@@ -41,7 +41,7 @@ switch_to_ramfs() {
 		pivot_root mount_root reboot sync kill sleep		\
 		md5sum hexdump cat zcat dd tar gzip			\
 		ls basename find cp mv rm mkdir rmdir mknod touch chmod \
-		'[' printf wc grep awk sed cut sort			\
+		'[' printf wc grep awk sed cut sort tail		\
 		mtd partx losetup mkfs.ext4 nandwrite flash_erase	\
 		ubiupdatevol ubiattach ubiblock ubiformat		\
 		ubidetach ubirsvol ubirmvol ubimkvol			\