Finally! I started with a fresh install of Fedora-34 and kernel-5.13.6-200.fc34.src.rpm Before the previous build, I did not done `sudo rpmbuild builddep kernel.spec`, so some builddep is not installed before build starts. The critical change to kernel.spec to allow the build to go ahead: %define with_configchecks %{?_without_configchecks: 0} %{?!_without_configchecks: 0} With this : # We only build kernel-headers on the following... %if 0%{?fedora} %define nobuildarches i386 i686 ppc64 s390x %{arm} %{power64} aarch64 ppc64le %else %define nobuildarches i386 i686 %{arm} %endif # kernel PAE (only valid for ARM (lpae)) %define with_pae %{?_without_pae: 0} %{?!_without_pae: 0} # kernel-debug %define with_debug %{?_without_debug: 0} %{?!_without_debug: 0} # kernel-debuginfo %define with_debuginfo %{?_without_debuginfo: 0} %{?!_without_debuginfo: 0} I got: $ ls -lsh total 97M 68K -rw-rw-r--. 1 fcc fcc 66K Aug 5 03:00 kernel-5.13.6-200.0805.fc34.x86_64.rpm 38M -rw-rw-r--. 1 fcc fcc 38M Aug 5 03:00 kernel-core-5.13.6-200.0805.fc34.x86_64.rpm 15M -rw-rw-r--. 1 fcc fcc 15M Aug 5 03:00 kernel-devel-5.13.6-200.0805.fc34.x86_64.rpm 42M -rw-rw-r--. 1 fcc fcc 42M Aug 5 03:00 kernel-modules-5.13.6-200.0805.fc34.x86_64.rpm 2.3M -rw-rw-r--. 1 fcc fcc 2.3M Aug 5 03:00 kernel-modules-extra-5.13.6-200.0805.fc34.x86_64.rpm 272K -rw-rw-r--. 1 fcc fcc 272K Aug 5 03:00 kernel-modules-internal-5.13.6-200.0805.fc34.x86_64.rpm After doing `rpm -ivh kernel-5* kernel-core-5* kernel-modules-5* kernel-devel-5*`, it booted OK. _______________________________________________ kernel mailing list -- kernel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to kernel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/kernel@xxxxxxxxxxxxxxxxxxxxxxx Do not reply to spam on the list, report it: https://pagure.io/fedora-infrastructure