diff --git a/repos/system_upgrade/el7toel8/actors/checkossfs/actor.py b/repos/system_upgrade/el7toel8/actors/checkossfs/actor.py
index e96aa682dc88bd996506ce55d6af792d4029e22c..8f1b076aca5e8a8c61fd60572ef9356f90316626 100644
--- a/repos/system_upgrade/el7toel8/actors/checkossfs/actor.py
+++ b/repos/system_upgrade/el7toel8/actors/checkossfs/actor.py
@@ -1,9 +1,13 @@
+import subprocess
+
 from leapp.actors import Actor
 from leapp.models import StorageInfo
 from leapp.reporting import Report, create_report
 from leapp import reporting
 from leapp.tags import ChecksPhaseTag, IPUWorkflowTag
-
+from leapp.libraries.stdlib import api
+from leapp.dialogs import Dialog
+from leapp.dialogs.components import BooleanComponent
 
 class CheckOSSfs(Actor):
     """
@@ -16,6 +20,23 @@ class CheckOSSfs(Actor):
     consumes = (StorageInfo,)
     produces = (Report,)
     tags = (ChecksPhaseTag, IPUWorkflowTag,)
+    
+    dialogs = (
+        Dialog(
+            scope='cancle_ossfs_mount_in_fstab',
+            reason='Confirmation',
+            components=(
+                BooleanComponent(
+                    key='confirm',
+                    label='Cancle ossfs mount in fstab? '
+                          'If no, the upgrade process will be interrupted.',
+                    description='Deprecated OSSFS mount present in /etc/fstab.',
+                    default=True,
+                    reason='OSSFS is currently not supported by the inplace upgrade.'
+                ),
+            )
+        ),
+    )
 
     def process(self):
         details = "OSSFS is currently not supported by the inplace upgrade.\n" \
@@ -40,20 +61,31 @@ class CheckOSSfs(Actor):
                 if systemdmount.fs_type.find('ossfs') != -1 : 
                     # mountpoint is not available in the model
                     systemd_ossfs_mounts.append(" - {}\n".format(systemdmount.node))
+            
+        if ossfs_mounts:
+            details += "- OSSFS shares currently mounted:\n"
+            details += ''.join(ossfs_mounts)
 
-        if any((fstab_ossfs_mounts, ossfs_mounts, systemd_ossfs_mounts)):
-            if fstab_ossfs_mounts:
-                details += "- OSSFS shares found in /etc/fstab:\n"
-                details += ''.join(fstab_ossfs_mounts)
-
-            if ossfs_mounts:
-                details += "- OSSFS shares currently mounted:\n"
-                details += ''.join(ossfs_mounts)
+        if systemd_ossfs_mounts:
+            details += "- OSSFS mounts configured with systemd-mount:\n"
+            details += ''.join(systemd_ossfs_mounts)
 
-            if systemd_ossfs_mounts:
-                details += "- OSSFS mounts configured with systemd-mount:\n"
-                details += ''.join(systemd_ossfs_mounts)
+        if fstab_ossfs_mounts:
+            details += "- OSSFS shares found in /etc/fstab:\n"
+            details += ''.join(fstab_ossfs_mounts)
+            api.current_logger().info(details)
 
+            command = "sed -i '/ossfs/ s/^/#/' /etc/fstab"
+            answer = self.get_answers(self.dialogs[0])
+            if answer.get('confirm') == True:
+                try:
+                    subprocess.check_output(command, shell=True, stderr=subprocess.STDOUT)
+                except subprocess.CalledProcessError as e:
+                    api.current_logger().error('comment out OSSFS mount failed: {}'.format(e))
+                else:
+                    api.current_logger().info('comment out OSSFS mount succeeded: {}'.format(command))
+                    return
+                
             fstab_related_resource = [reporting.RelatedResource('file', '/etc/fstab')] if fstab_ossfs_mounts else []
 
             create_report([