How can we restore the deleted FW policy in R80.10 MGMT. We used to restore the deleted policy with data base revision control option in R77.30
check your "Installation History" (Access tools) on the policy tab. You can see your prior policies and, if you want, install the policy version ok.
In R80.x policy revision control is automatic. In Policy Installation History under Security Policy you can install a specific version, Under Manage and Settings - Revisions you can View or Purge policy revisions. It's also possible to take over a session of another admin.
And when you reverted to a database revision in R77.30 you were able to bring back a deleted policy package but you also lost any other changes, are you sure that's what you want to do? The Installation History feature in R80+ management can only install a previously-installed known good policy back onto a gateway, it changes/restores nothing in the actual config shown in the SmartConsole.
Check out the Revert function detailed in Part 3 of my document here:
R80+ Change Control: A Visual Guide
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Retrieving data ...