recovery-sign: tweak colors, add reboot

initramfs/scripts/safeboot-bootmode

@@ -66,13 +66,13 @@ mount -t efivarfs none /sys/firmware/efi/efivars
 
 
 cat >&2 <<'EOF'
-[1;35m
+[1;44;35m
     ____          __      _                 _        _             ____
    / / /__  __ _ / _| ___| |__   ___   ___ | |_   __| | _____   __/ / /
   / / / __|/ _` | |_ / _ \ '_ \ / _ \ / _ \| __| / _` |/ _ \ \ / / / / 
  / / /\__ \ (_| |  _|  __/ |_) | (_) | (_) | |_ | (_| |  __/\ V / / /  
 /_/_/ |___/\__,_|_|  \___|_.__/ \___/ \___/ \__(_)__,_|\___| \_/_/_/   
-[41;34m
+[1;41;35m
  _ __ ___  ___ _____   _____ _ __ _   _    _ __ ___   ___   __| | ___  
 | '__/ _ \/ __/ _ \ \ / / _ \ '__| | | |  | '_ ` _ \ / _ \ / _` |/ _ \ 
 | | |  __/ (_| (_) \ V /  __/ |  | |_| |  | | | | | | (_) | (_| |  __/ 
@@ -92,6 +92,9 @@ Useful commands:
 safeboot linux-sign
 safeboot pcrs-sign
 
+# Unmount all filesystems and reboot into normal Linux
+safeboot reboot
+
 EOF
 
 SAFEBOOT="recovery"

sbin/safeboot

@@ -1181,10 +1181,20 @@ reboot() {
 	umount /boot/efi
 	umount /boot
 	mount -o ro,remount "$ROOTDEV"
+	sync ; sync ; sync
 
 	warn "Initiating reboot!"
 	sleep 2
-	/sbin/reboot
+	sync ; sync ; sync
+
+	if [ -x "/usr/bin/reboot" ]; then
+		# busybox reboot, no init to go through
+		exec /usr/bin/reboot -f
+	fi
+	if [ -x "/sbin/reboot" ]; then
+		# normal reboot process
+		exec /sbin/reboot
+	fi
 }
 
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