On Tue, 15 Sep 2015, Cole Robinson wrote: > Anyone know how to get fedora + xen running in a KVM VM? I'd like to be able > to do basic xen/libxl/libvirt testing without needed to reboot a physical machine. > > Trying with F23 AMD host, F22+xen L1, trying to boot into xen in the L1 VM > just reboots very soon after trying to boot the kernel. Tried disabling all > virtio for L1 VM, disabling virt extensions for the L1 VM, but it didn't seem > to change anything. Unfortunately the messages scroll by so quickly I can't > tell what's happening right before it reboots, and all efforts to convince it > to print more debugging haven't worked. > > FWIW this does work with rhel5+xen L1, but that's a world away at this point. > > So anyone know if it's even possible? Is there a trick to it? If not, > suggestions on getting more debug output from xen + grub2? It works for me after a basic and probably sub-optimal install, as follows * qemu-kvm -cdrom Fedora-Server-DVD-x86_64-22.iso -m 1024 -hda kvm.img * do a minimal install * after reboot dnf install xen xen-hypervisor * select "Fedora, with Xen hypervisor" in the boot menu If you need more debugging, boot without xen, and edit the grub.cfg file, adding console=com1 after xen.gz and replacing rhgb quiet with console=hvc0 in the 'Fedora, with Xen hypervisor' section, then boot kvm with -serial eg. -serial file:boot.log which should give you xen logging after grub has finished. Michael Young -- xen mailing list xen@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/xen
