From 93f1d740ff7ea90e5182f1a9185e16d42c73eca7 Mon Sep 17 00:00:00 2001
From: Stepan Blyshchak <38952541+stepanblyschak@users.noreply.github.com>
Date: Mon, 19 Sep 2022 09:31:00 +0300
Subject: [PATCH] [warm-reboot] fix warm-reboot when /tmp/cache is missing
 (#2367)

- What I did
Fixed issue when cache wasn't generated and warm reboot command fails.
Fixes sonic-net/sonic-buildimage#11914

- How I did it
Added a check for cache existence

- How to verify it
Run warm-reboot

Signed-off-by: Stepan Blyschak <stepanb@nvidia.com>
---
 scripts/fast-reboot | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/scripts/fast-reboot b/scripts/fast-reboot
index 2d96dd78cf..5c81818942 100755
--- a/scripts/fast-reboot
+++ b/scripts/fast-reboot
@@ -454,10 +454,13 @@ function save_counters_folder() {
     if [[ "$REBOOT_TYPE" = "warm-reboot" ]]; then
         debug "Saving counters folder before warmboot..."
         counters_folder="/host/counters"
+        counters_cache="/tmp/cache"
         if [[ ! -d $counters_folder ]]; then
             mkdir $counters_folder
         fi
-        cp -rf /tmp/cache $counters_folder
+        if [[ -d $counters_cache ]]; then
+           cp -rf $counters_cache $counters_folder
+        fi
     fi
 }