From 445a7a4cad127b9f587ac8ef8d4a911eb35c77fb Mon Sep 17 00:00:00 2001
From: Daniil Baturin <daniil@baturin.org>
Date: Sun, 3 Nov 2013 18:26:21 +0100
Subject: Add kernel commandline option to boot with specific config.
 vyos-config=/config/something

---
 etc/init.d/vyatta-router | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/etc/init.d/vyatta-router b/etc/init.d/vyatta-router
index ef76eba..9d11aab 100755
--- a/etc/init.d/vyatta-router
+++ b/etc/init.d/vyatta-router
@@ -38,6 +38,18 @@ declare action=$1; shift
 
 declare -x BOOTFILE=$vyatta_sysconfdir/config/config.boot
 
+# If vyos-config= boot option is present, use that file instead
+VYOS_CONFIG=$(cat /proc/cmdline | grep -Eo '\bvyos-config=(\S+)\b' /proc/cmdline | awk -F'=' '{print $2}')
+
+if [ ! -z "$VYOS_CONFIG" ]; then
+    if [ -r "$VYOS_CONFIG" ]; then
+        echo "Config selected manually: $VYOS_CONFIG"
+        declare -x BOOTFILE="$VYOS_CONFIG"
+    else
+        echo "WARNING: Could not read selected config file, using default!"
+    fi
+fi
+
 declare -a subinit
 declare -a all_subinits=(
     rl-system
-- 
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