From 9520f95242da5b0a24481f43f9288e920d19b051 Mon Sep 17 00:00:00 2001
From: Warner Losh <imp@FreeBSD.org>
Date: Tue, 31 Dec 2013 04:40:25 +0000
Subject: [PATCH] Delete echoed doesn't rub out the previous character, so
 always use <backspace> <space> <backspace> instead. This fixes hitting DELETE
 instead of BACKSPACE at mountroot> prompt.

---
 sys/kern/kern_cons.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sys/kern/kern_cons.c b/sys/kern/kern_cons.c
index d17846af8024..72b384f01fa9 100644
--- a/sys/kern/kern_cons.c
+++ b/sys/kern/kern_cons.c
@@ -432,10 +432,8 @@ cngets(char *cp, size_t size, int visible)
 		case '\b':
 		case '\177':
 			if (lp > cp) {
-				if (visible) {
-					cnputc(c);
-					cnputs(" \b");
-				}
+				if (visible)
+					cnputs("\b \b");
 				lp--;
 			}
 			continue;