When running db2prereqcheck with betas s1612281900 and s1701260100 we see:
Checking prerequisites for DB2 installation with the DB2 pureScale Feature.
Validating "kernel-source" ... DBT3507E The db2prereqcheck utility failed to find the following package or file: "kernel-source". ERROR : Requirement not matched.
For CentOS should this be checking for rpm kernel-devel rather than kernel-source?
Thanks for your question.
The reason for that error is that CentOS is not a supported platform for V11.1 and higher.