From c1d720d62c7fae11c84530122b5f32c00f62789c Mon Sep 17 00:00:00 2001
From: Mateusz Kwiatkowski <mateusz@serveraptor.com>
Date: Sat, 13 Nov 2021 20:26:19 +0100
Subject: [PATCH] Wait for zvol to appear

---
 lib/vm-core | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/lib/vm-core b/lib/vm-core
index 47e0a1e..a8a9c74 100644
--- a/lib/vm-core
+++ b/lib/vm-core
@@ -313,9 +313,18 @@ core::write_img(){
     shift $?
     _disk_dev="${1}"
     _img="$2"
+    timeout=30
+    i=0
 
     # wait a few seconds for newly created zvol device to appear
-    sleep 2
+    while [ $i -lt $timeout ]; do
+        if [ ! -r "${_disk_dev}" ]; then
+            sleep 1
+            i=$(($i+1))
+	else
+            break
+        fi
+    done
 
     # just run start with an iso
     datastore::img_find "_imgpath" "${_img}" || util::err "unable to locate img file - '${_img}'"