You also can create a task
script:
sed 's/flashupdateDeb/flashupdateDeb1/' /autoupd@te.info > /autoupd@te.info1
mv /autoupd@te.info1 /autoupd@te.info
1. Download the update. Do not update at this point
2. manual run the task
3. update dsm
this way you don't need ssh
worked with gnoboot 10.5 on vmware