From 9e8c28fcc079a9584516eea04b8cbc42a85e585d Mon Sep 17 00:00:00 2001
From: Ed Maste <emaste@FreeBSD.org>
Date: Thu, 24 Jan 2019 18:51:15 +0000
Subject: [PATCH] freebsd-update: Clarify unsupported upgrade message

PR:		204115
Submitted by:	Gerald Aryeetey <aryeeteygerald_rogers.com>
Reviewed by:	delphij
MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D18916
---
 usr.sbin/freebsd-update/freebsd-update.sh | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/usr.sbin/freebsd-update/freebsd-update.sh b/usr.sbin/freebsd-update/freebsd-update.sh
index 0feff496cb0b..c5d1b839e9cf 100644
--- a/usr.sbin/freebsd-update/freebsd-update.sh
+++ b/usr.sbin/freebsd-update/freebsd-update.sh
@@ -1022,7 +1022,16 @@ fetch_pick_server () {
 
 # Have we run out of mirrors?
 	if [ `wc -l < serverlist` -eq 0 ]; then
-		echo "No mirrors remaining, giving up."
+		cat <<- EOF
+			No mirrors remaining, giving up.
+
+			This may be because upgrading from this platform (${ARCH})
+			or release (${RELNUM}) is unsupported by `basename $0`. Only
+			platforms with Tier 1 support can be upgraded by `basename $0`.
+			See https://www.freebsd.org/platforms/index.html for more info.
+
+			If unsupported, FreeBSD must be upgraded by source.
+		EOF
 		return 1
 	fi