Re: [Qemu-devel] [question] Is it, valuable to achieve modify boot index when vm is running?

[陈梁]

> On 06/25/2014 04:28 AM, ChenLiang wrote:
>> hi,all
>> Qemu can not modify boot index when vm is running.
> 
> So? Boot index is used exactly once - when the domain is started. After
> that, you aren't booting any more, so what benefit is there to changing
> boot index on the fly?
> 
>> It is inconvenience when we install guest os. Is it
>> necessary to achieve modify boot index online?
> 
> virt-install manages to install guests just fine without changing the
> boot index on the fly; it manages to sequence multiple qemu runs with
> different boot indices between runs.

Thanks for your advice. I will try it.
> 
>> We can add one qmp interface to achieve it.
> 
> You're welcome to submit a patch if you think you have a use case; but I
> personally don't see the current setup as limiting.
> 

There is one case when reboot in vm. 

Best regards
chenliang
> -- 
> Eric Blake   eblake redhat com    +1-919-301-3266
> Libvirt virtualization library http://libvirt.org
>