Good morning, I’m trying to upgrade the version of Suse Enterprise Server 12 SP5 to Suse Enterprise Server 15 SP6 in offline mode using an ISO, but I’m getting the error below.
Are you following the official Upgrade Guide at https://documentation.suse.com/sles/15-SP6/html/SLES-all/book-upgrade.html ?
If so, at which point of which section are you seeing this error?