"Fix" race condition in riju-init-volume

packer/riju-init-volume

@@ -27,6 +27,8 @@ print "volume has ${num_parts} partition(s)"
 if [[ "${num_parts}" != 1 ]]; then
     print "repartitioning so we have exactly one partition"
     sfdisk -X gpt "/dev/${disk}" <<< ";"
+    print "waiting for 1 second so that partitions show up in /dev"
+    sleep 1
 fi
 
 part="$(lsblk -l -o name | (grep "${disk}." || true) | head -n1)"