base-files: allow users to delect debug level during boot

Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 38909

1 files changed, 17 insertions, 8 deletions

diff --git a/package/base-files/files/lib/preinit/30_failsafe_wait b/package/base-files/files/lib/preinit/30_failsafe_wait
index 6bce8ae49f..522565940c 100644
--- a/package/base-files/files/lib/preinit/30_failsafe_wait
+++ b/package/base-files/files/lib/preinit/30_failsafe_wait
@@ -5,7 +5,7 @@
 fs_wait_for_key () {
     local timeout=$3
     local timer
-    local do_failsafe
+    local do_keypress
     local keypress_true="$(mktemp)"
     local keypress_wait="$(mktemp)"
     local keypress_sec="$(mktemp)"
@@ -40,6 +40,7 @@ fs_wait_for_key () {
     } &
 
     echo "Press the [$1] key and hit [enter] $2"
+    echo "Press the [1], [2], [3] or [4] key and hit [enter] to select the debug level"
     # if we're on the console we wait for input
     { 
 	while [ -r $keypress_wait ]; do
@@ -48,14 +49,22 @@ fs_wait_for_key () {
 	    [ -n "$timer" ] || timer=1
 	    timer="${timer%%\ *}"
 	    [ $timer -ge 1 ] || timer=1
-	    do_failsafe=""
+	    do_keypress=""
 	    {
-		read -t "$timer" do_failsafe
-		if [ "$do_failsafe" = "$1" ]; then
-		    echo "true" >$keypress_true
-		    lock -u $keypress_wait
-		    rm -f $keypress_wait
- 		fi
+		read -t "$timer" do_keypress
+		case "$do_keypress" in
+		$1)
+			echo "true" >$keypress_true
+			;;
+		1 | 2 | 3 | 4)
+			echo "$do_keypress" >/tmp/debug_level
+			;;
+		*)
+			continue;
+			;;
+		esac
+		lock -u $keypress_wait
+		rm -f $keypress_wait
 	    }
 	done
     }