Re: [Xen-devel] 4.3 Planning: Taking stock

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 24.01.13 at 11:07, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> On Thu, 2013-01-24 at 10:03 +0000, Jan Beulich wrote:
>> >>> On 24.01.13 at 10:49, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
>> > On Thu, 2013-01-24 at 08:32 +0000, Jan Beulich wrote:
>> >> >>> On 23.01.13 at 18:10, George Dunlap <george.dunlap@xxxxxxxxxxxxx> 
>> >> >>> wrote:
>> >> > On 23/01/13 17:00, Jan Beulich wrote:
>> >> >> The one feature here that requires work in our tree is to be able
>> >> >> to boot via grub.efi (irrespective of how little I personally like 
>> >> >> that);
>> >> >> I'm not sure Daniel was also planning to look into that part.
>> >> > 
>> >> > Do you think not having this for 4.3 will be a potential problem for 
>> >> > Xen?
>> >> 
>> >> The feature was reportedly missed by two or three people so far,
>> >> all of which simply were told to go the currently working route. But
>> >> I recall IanC saying something about Debian (or was it Ubuntu) not
>> >> being willing to support the boot loader free approach...
>> > 
>> > I think both of them would prefer to have a standard bootloader
>> > "experience" for both Linux and Xen.
>> > 
>> > Looking back at the Debian conversation what Bastian actually asked when
>> > I suggested packaging the EFI hypervisor image was if the same image
>> > could be used for UEFI and BIOS, which I suppose isn't exactly the same
>> > as above since having the same binary (if that were even possible)
>> > doesn't necessitate booting via a bootloader.
>> 
>> But a single binary is not an option - the ELF and MSDOS signatures
>> both sit at file offset 0.
> 
> Yes, I thought you might say that ;-)
> 
> If we boot via grub is the binary the same there regardless of whether
> it is grub-efi or grub-pc (/bios) ?

I suppose so, but don't know (as I never looked at how grub.efi
works).

Jan


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