diff --git a/lerobot/common/robot_devices/cameras/opencv.py b/lerobot/common/robot_devices/cameras/opencv.py
index 48fbb968..6d7fe2ac 100644
--- a/lerobot/common/robot_devices/cameras/opencv.py
+++ b/lerobot/common/robot_devices/cameras/opencv.py
@@ -5,6 +5,7 @@ This file contains utilities for recording frames from cameras. For more info lo
 import argparse
 import concurrent.futures
 import math
+import platform
 import shutil
 import threading
 import time
@@ -33,8 +34,18 @@ MAX_OPENCV_INDEX = 60
 
 
 def find_camera_indices(raise_when_empty=False, max_index_search_range=MAX_OPENCV_INDEX):
+    if platform.system() == "Linux":
+        # Linux uses camera ports
+        print("Linux detected. Finding available camera indices through scanning '/dev/video*' ports")
+        possible_camera_ids = [int(port.replace("/dev/video", "")) for port in Path("/dev").glob("video*")]
+    else:
+        print(
+            f"Mac or Windows dtected. Finding available camera indices through scanning all indices from 0 to {MAX_OPENCV_INDEX}"
+        )
+        possible_camera_ids = range(max_index_search_range)
+
     camera_ids = []
-    for camera_idx in range(max_index_search_range):
+    for camera_idx in possible_camera_ids:
         camera = cv2.VideoCapture(camera_idx)
         is_open = camera.isOpened()
         camera.release()
@@ -59,10 +70,9 @@ def save_image(img_array, camera_index, frame_index, images_dir):
 
 
 def save_images_from_cameras(
-    images_dir: Path, camera_ids=None, fps=None, width=None, height=None, record_time_s=2
+    images_dir: Path, camera_ids: list[int] | None = None, fps=None, width=None, height=None, record_time_s=2
 ):
     if camera_ids is None:
-        print("Finding available camera indices")
         camera_ids = find_camera_indices()
 
     print("Connecting cameras")
@@ -75,9 +85,7 @@ def save_images_from_cameras(
         )
         cameras.append(camera)
 
-    images_dir = Path(
-        images_dir,
-    )
+    images_dir = Path(images_dir)
     if images_dir.exists():
         shutil.rmtree(
             images_dir,
@@ -99,7 +107,7 @@ def save_images_from_cameras(
                 executor.submit(
                     save_image,
                     image,
-                    camera.camera_index,
+                    camera.index,
                     frame_index,
                     images_dir,
                 )
@@ -160,7 +168,7 @@ class OpenCVCamera:
     When an OpenCVCamera is instantiated, if no specific config is provided, the default fps, width, height and color_mode
     of the given camera will be used.
 
-    Example of usage of the class:
+    Example of usage:
     ```python
     camera = OpenCVCamera(camera_index=0)
     camera.connect()
@@ -182,7 +190,7 @@ class OpenCVCamera:
     ```
     """
 
-    def __init__(self, camera_index: int | str, config: OpenCVCameraConfig | None = None, **kwargs):
+    def __init__(self, camera_index: int, config: OpenCVCameraConfig | None = None, **kwargs):
         if config is None:
             config = OpenCVCameraConfig()
         # Overwrite config arguments using kwargs
@@ -207,7 +215,13 @@ class OpenCVCamera:
 
         # First create a temporary camera trying to access `camera_index`,
         # and verify it is a valid camera by calling `isOpened`.
-        tmp_camera = cv2.VideoCapture(self.camera_index)
+
+        if platform.system() == "Linux":
+            # Linux uses ports for connecting to cameras
+            tmp_camera = cv2.VideoCapture(f"/dev/video{self.camera_index}")
+        else:
+            tmp_camera = cv2.VideoCapture(self.camera_index)
+
         is_camera_open = tmp_camera.isOpened()
         # Release camera to make it accessible for `find_camera_indices`
         del tmp_camera
@@ -227,7 +241,10 @@ class OpenCVCamera:
         # Secondly, create the camera that will be used downstream.
         # Note: For some unknown reason, calling `isOpened` blocks the camera which then
         # needs to be re-created.
-        self.camera = cv2.VideoCapture(self.camera_index)
+        if platform.system() == "Linux":
+            self.camera = cv2.VideoCapture(f"/dev/video{self.camera_index}")
+        else:
+            self.camera = cv2.VideoCapture(self.camera_index)
 
         if self.fps is not None:
             self.camera.set(cv2.CAP_PROP_FPS, self.fps)