linhes-system: add lh_restart_needed.sh

1 files changed, 35 insertions, 0 deletions

diff --git a/linhes/linhes-system/lh_restart_needed.sh b/linhes/linhes-system/lh_restart_needed.sh
new file mode 100755
index 0000000..c939a28
--- /dev/null
+++ b/linhes/linhes-system/lh_restart_needed.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+
+get_boot_kernel() {
+    local get_version=0
+    for field in $(file /boot/vmlinuz*); do
+        if [[ $get_version -eq 1 ]]; then
+            echo $field
+            return
+        elif [[ $field == version ]]; then
+            # the next field contains the version
+            get_version=1
+        fi
+    done
+}
+
+rc=1
+
+libs=$(lsof -n +c 0 2> /dev/null | grep 'DEL.*lib' | awk '1 { print $1 ": " $NF }' | sort -u)
+if [[ -n $libs ]]; then
+    cat <<< $libs
+    echo "# LIBS: reboot required"
+    rc=0
+fi
+
+active_kernel=$(uname -r)
+current_kernel=$(get_boot_kernel)
+#echo $active_kernel
+#echo $current_kernel
+
+if [[ $active_kernel != $current_kernel ]]; then
+    echo "$active_kernel < $current_kernel"
+    echo "# KERNEL: reboot required"
+    rc=0
+fi
+exit $rc