diff --git a/.gitignore b/.gitignore
index c52d8111..47757c7c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,7 @@
 _build/
 dist/
 doc/
+build/
 
 # Python egg metadata, regenerated from source files by setuptools.
 /*.egg-info
diff --git a/jtop/jetson_config.py b/jtop/jetson_config.py
index 594f6078..1a7e944e 100644
--- a/jtop/jetson_config.py
+++ b/jtop/jetson_config.py
@@ -37,8 +37,9 @@
 # Detect user
 user = os.environ.get('USER', '')
 # Get user from sudo
-if 'SUDO_USER' in os.environ:
-    user = os.environ['SUDO_USER']
+sudo_user = os.environ.get('SUDO_USER', '')
+# If are both empty assign 'root'
+user = sudo_user or 'root'
 # Locate folder and type of installation
 folder, _ = os.path.split(__file__)
 folder = os.path.dirname(folder)
diff --git a/jtop/service.py b/jtop/service.py
index 1ef8ada9..2057784e 100644
--- a/jtop/service.py
+++ b/jtop/service.py
@@ -155,8 +155,9 @@ def install_service(package_root, copy, name=JTOP_SERVICE_NAME):
 def status_permission_user(group=JTOP_USER):
     user = os.environ.get('USER', '')
     # Get user from sudo
-    if 'SUDO_USER' in os.environ:
-        user = os.environ['SUDO_USER']
+    sudo_user = os.environ.get('SUDO_USER', '')
+    # If are both empty assign 'root'
+    user = sudo_user or 'root'
     # Check if user is in group
     cmd_group_user = Command(shlex.split('groups {user}'.format(user=user)))
     try:
@@ -191,8 +192,9 @@ def status_permission(group=JTOP_USER):
 def unset_service_permission(group=JTOP_USER):
     user = os.environ.get('USER', '')
     # Get user from sudo
-    if 'SUDO_USER' in os.environ:
-        user = os.environ['SUDO_USER']
+    sudo_user = os.environ.get('SUDO_USER', '')
+    # If are both empty assign 'root'
+    user = sudo_user or 'root'
     # Check if user is in group
     if status_permission_user(group):
         logger.info("Remove {user} from group {group}".format(group=group, user=user))
@@ -205,8 +207,9 @@ def unset_service_permission(group=JTOP_USER):
 def set_service_permission(group=JTOP_USER):
     user = os.environ.get('USER', '')
     # Get user from sudo
-    if 'SUDO_USER' in os.environ:
-        user = os.environ['SUDO_USER']
+    sudo_user = os.environ.get('SUDO_USER', '')
+    # If are both empty assign 'root'
+    user = sudo_user or 'root'
     # Make jetson_stats group
     if not status_permission_group(group):
         logger.info("Add new group {group}".format(group=group))
diff --git a/setup.py b/setup.py
index 20f8db6f..f358e1ac 100644
--- a/setup.py
+++ b/setup.py
@@ -82,11 +82,22 @@ def is_virtualenv():
 
 def is_docker():
     # https://gist.github.com/anantkamath/623ce7f5432680749e087cf8cfba9b69
+    # https://stackoverflow.com/questions/68816329/how-to-get-docker-container-id-from-within-the-container-with-cgroup-v2
+    # Check on cgroup
     with open('/proc/self/cgroup', 'r') as procfile:
         for line in procfile:
+            # if is the new cgroup v2 check on mountinfo
+            if line.startswith("0::/"):
+                break
             fields = line.strip().split('/')
             if 'docker' in fields or 'buildkit' in fields:
                 return True
+    with open( '/proc/self/mountinfo' ) as file:
+        line = file.readline().strip()    
+        while line:
+            if '/docker/containers/' in line:
+                return True
+            line = file.readline().strip()
     return False