Restore configuration backup get Error

[evan_ku]

Dear All,

Got a problem when I tried to restore my backup. I am using ISE version 2.1 (I know it is too old) and gonna restore a configuration to new ISE server, unfortunately, when progressing restore Extracting backup data...30% completed, got
% Error: Cannot find ise_backup_instance.log in the backup file
% Application restore failed

Do we have any solution to fix this configuration file? 

Thank you! 

[Greg Gibbs]

What version of ISE are you attempting to restore the backup from ISE 2.1? The last version that supported a direct upgrade from 2.1 was 2.6; both of which versions are past End of Support.

See a similar discussion here based on earlier versions of ISE. In that discussion, you will also find a link to the ISE Version Upgrade Matrix that lists the possible versions for direct upgrade from/to.

https://community.cisco.com/t5/network-access-control/upgrade-ise-1-4-to-2-7/td-p/4698402

[evan_ku]

Yes, the backup file is generated by ISE 2.1 and this is our only one configuration backup, since the old ISE server was broken. I am using the new ISE server version 2.6 to restore the configure. Do we have any solution to solve this error. Thank you!