Stefan, The ec2 kernels already have xen-netfront and xen-blkfront compiled in. If xen-platform-pci was also compiled in, or included in the initramfs, then the HW emulation will be unplugged properly and you'll switch over to the PV drivers. The following results in PV drivers for the root volume on my test instance:
add xen-platform-pci to /etc/initramfs-tools/modules run update-initramfs -u remove xen_emu_unplug=unnecessary from the kernel boot command line reboot See also bug 804219 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/704022 Title: xen_emul_unplug=unnecessary on kernel cmdline is required in ec2 hvm To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/704022/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
