diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9cf2cb8..0f20070 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.20.1] - 2025-06-24
+
+### Changed
+
+- Fix mark for ogboot on linux
+
 ## [0.20.0] - 2025-06-24
 
 ### Changed
diff --git a/ogclient/scripts/configureOs.py b/ogclient/scripts/configureOs.py
index 32fe8be..aa5bcc4 100755
--- a/ogclient/scripts/configureOs.py
+++ b/ogclient/scripts/configureOs.py
@@ -81,7 +81,7 @@ if 'Windows' == ostype:
 
 elif 'Linux' == ostype:
     # Marca para arranque.
-    boot_mark_file = f'/Part-{int(disk):02d}-{int(par):02d}'
+    boot_mark_file = f'{mntdir}/Part-{int(disk):02d}-{int(par):02d}'
     try:
         open (boot_mark_file, 'w').close()
     except Exception as e: