Il 29/07/2014 15:56, Alex Bligh ha scritto: > > On 29 Jul 2014, at 14:42, Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > >> Il 29/07/2014 15:39, Alex Bligh ha scritto: >>>>> I'm not sure either. You could simply package the 12.04 ipxe ROMs into >>>>> 14.04, and add a note about getting the sources for GPL friendliness. >>> This would be my preference (or in Ubuntu's case, add it to the ipxe-qemu >>> package) but I think it should only be used when the legacy machine type >>> is used or it will break inbound migrations from other 14.04 machines >>> started with 128k ROMs (AIUI). >> >> "-M pc" and its alias "-M pc-i440fx-2.0" doesn't use pxe-virtio.rom at >> all (at least upstream). > > Really? How does it pxeboot on virtio then (it definitely does pxeboot > on virtio)? efi-virtio.rom contains both BIOS and UEFI ROMs. >> Does Ubuntu 14.04 have efi-virtio.rom? > > Yes. After 2 layers of symlinks you get to. > > ubuntu@trustytest:~$ ls -la /usr/lib/ipxe/qemu/efi-virtio.rom > -rw-r--r-- 1 root root 220672 Jan 6 2014 /usr/lib/ipxe/qemu/efi-virtio.rom > >> It would break "-M pc-1.0" started on older 14.04, but I think that's >> acceptable. > > I was more worried about any previous versions of Ubuntu (newer than > 12.04) which might also be using the larger rom size. But then I > haven't investigated at what stage the rom size grew. You're right, but in Serge's shoes I wouldn't bother about anything except LTS. Paolo -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list