Hi. I have Fedora Core 3 and 2.6.9-1.667 kernel installed. That version doesn't have 'good' UML support. Which host and guest kernel versions people have successfully installed and used HIPL when using also UML. Now I have tried 2.6.9-1.667 as host and 2.6.10 as guest. HIPL patches are for kernel 2.6.10, but there aren't UML patches for that version. I have understood that 2.6.10 has UML support, although it might have some bugs.. Thank you for any help! -Teemu Väisänen