diff --git a/readme.md b/readme.md
index 25bf627..319f3c7 100644
--- a/readme.md
+++ b/readme.md
@@ -160,11 +160,9 @@ docker run -it --rm -e "BOOT=http://www.example.com/image.iso" --device=/dev/kvm
     devices:
         - /dev/vhost-net
     device_cgroup_rules:
-        - 'c 511:* rwm'
+        - 'c *:* rwm'
     ```
 
-    Please note that the exact `cgroup` rule number may vary depending on your system, but the log output will indicate the correct number in the event of an error.
-
 [build_url]: https://github.com/qemu-tools/qemu-docker/
 [ghcr_url]: https://github.com/orgs/qemu-tools/packages/container/package/qemu-docker
 
diff --git a/run/run.sh b/run/run.sh
index 0a4125d..8fc5ed9 100755
--- a/run/run.sh
+++ b/run/run.sh
@@ -22,6 +22,7 @@ trap 'error "Status $? while: ${BASH_COMMAND} (line $LINENO/$BASH_LINENO)"' ERR
 STORAGE="/storage"
 KERNEL=$(uname -r | cut -b 1)
 ARCH=$(dpkg --print-architecture)
+VERS=$(qemu-system-x86_64 --version | head -n 1 | cut -d '(' -f 1)
 
 [ ! -d "$STORAGE" ] && error "Storage folder (${STORAGE}) not found!" && exit 13
 
@@ -72,7 +73,7 @@ trap - ERR
 
 set -m
 (
-  [[ "${DEBUG}" == [Yy1]* ]] && set -x
+  [[ "${DEBUG}" == [Yy1]* ]] && info "$VERS" && set -x
   qemu-system-x86_64 ${ARGS:+ $ARGS} & echo $! > "${_QEMU_PID}"
   { set +x; } 2>/dev/null
 )