From 59b0812adfff4af7993ffbb159542f66b1538d58 Mon Sep 17 00:00:00 2001
From: Mai MISHIRO <33324303+mai346@users.noreply.github.com>
Date: Wed, 8 Nov 2017 17:16:59 +0900
Subject: [PATCH] Fix: "Reboot Required" detection process in scan/redhat.go
 (#534)

---
 scan/redhat.go | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/scan/redhat.go b/scan/redhat.go
index 75dfefc9..99a996a7 100644
--- a/scan/redhat.go
+++ b/scan/redhat.go
@@ -260,11 +260,13 @@ func (o *redhat) scanPackages() error {
 }
 
 func (o *redhat) rebootRequired() (bool, error) {
-	r := o.exec("rpm -q --last kernel | head -n1", noSudo)
-	if !r.isSuccess() {
-		return false, fmt.Errorf("Failed to detect the last installed kernel : %v", r)
+	r := o.exec("rpm -q --last kernel", noSudo)
+	scanner := bufio.NewScanner(strings.NewReader(r.Stdout))
+	if !r.isSuccess() || !scanner.Scan() {
+		o.log.Warn("Failed to detect the last installed kernel : %v", r)
+		return false, nil
 	}
-	lastInstalledKernelVer := strings.Fields(r.Stdout)[0]
+	lastInstalledKernelVer := strings.Fields(scanner.Text())[0]
 	running := fmt.Sprintf("kernel-%s", o.Kernel.Release)
 	return running != lastInstalledKernelVer, nil
 }