Re: [ANNOUNCE] kvm-72 release

[Anthony Liguori <anthony@codemonkey.ws>]

Henrik Holst wrote:
> There is a boot regression in kvm-72:
>
> scsi and virtio images will not survive a "reboot" from within the
> guest. Only drives with if=ide survives a rebooting of the guest.
>
> That is, this will create a guest that will survive any number of reboots:
>     qemu-system-x86_64 -M -drive file=a,if=ide,media=disk,boot=on -boot c
>
> While this will only survive the first boot:
>     qemu-system-x86_64 -M -drive file=a,if=scsi,media=disk,boot=on -boot c OR
>     qemu-system-x86_64 -M -drive file=a,if=virtio,media=disk,boot=on -boot c
>   

What does "survive" mean?

> Also the extboot work done by H. Peter Anvin finally makes the newer
> isolinux menus to work but the older isolinux (for example the
> installer to ubuntu 7.10)

Ubuntu doesn't use isolinux, it uses gfxboot.  Older versions of gfxboot 
are known to be broken with KVM on Intel.

Regards,

Anthony Liguori

>  still does not work. It no longer segfaults
> though but instead the guest completely hangs. Much improvement
> though!
>
> /Henrik Holst
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