I am trying trying to run a research OS named Ethos as a DomU paravirtualized guest. Ethos does not yet support 64-bit or PAE, so I need to build a non-PAE Dom0 kernel. I am having trouble doing this. Here is what I tried: 1. Edit Michael Young's kernel.spec as follows: # kernel-PAE is only built on i686. %ifarch i686 %define with_pae 0 %define with_up 1 %else %define with_pae 0 %endif 2. Build an RPM using "rpmbuild -ba --target i686 --with xen --without debuginfo kernel.spec." When try to boot my Dom0 kernel, Xen complains: (XEN) elf_xen_note_check: ERROR: Will only load images build for the generic loader or Linux images Do I need to recompile Xen to go non-PAE? See also https://bugzilla.redhat.com/show_bug.cgi?id=543190, unable to build custom i686 non-pae kernel. -- Mike :wq -- xen mailing list xen@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/xen