2.4.  RELAX NG - a schema language for XML

2.4.1.  Introduction

A RELAX NG schema specifies a pattern for the structure and content of an XML document. A RELAX NG schema thus identifies a class of XML documents consisting of those documents that match the pattern. A RELAX NG schema is itself an XML document.

Verfify your autoyast XML file

/usr/bin/xmllint --noout --relaxng /usr/share/YaST2/schema/autoyast/rng/profile.rng myAutoYaSTProfile.xml