-----邮件原件-----
发件人: Andrew Fish [mailto:af...@apple.com] 
发送时间: 2015年8月17日 2:27
收件人: Rod Smith
抄送: edk2-devel@lists.sourceforge.net
主题: Re: [edk2] 答复: can ovmf boot from mbr partioned disk


> On Aug 16, 2015, at 10:54 AM, Rod Smith <rodsm...@rodsbooks.com> wrote:
> 
> On 08/16/2015 12:01 AM, Fanhenglong wrote:
>> 
>> In uefi boot mode I can’t install windows or linux guest os on mbr 
>> partition,
>> 
>> Maybe uefi only supports booting from mbr and can’t install on mbr?
> 
> Windows and most Linux distributions have their own prohibitions 
> against installing to MBR disks. Your description is a little unclear, 
> but you're probably running into this issue.
> 
> Earlier, you wrote:
> 
>> I can’t convert mbr to gpt,
>> 
>> Why not? The OS installer should permit you to do this, although in 
>> some cases you'll need to jump through some hoops to do it. (Note that 
>> this may destroy other OSes already installed to the disk, or at least 
>> render them unbootable until an EFI-mode boot loader is installed.)
> 

>Not to mention it is OVMF, so you could have an MBR disk and a GPT disk. 

>For legacy BIOS boot you need C: and magic sectors on an MBR formatted disk 
>(sector zero, and cheat sectors lots of folks try to use). 
>For EFI you boot from a named file on a FAT32 system partition. The system 
>partition can contain an unlimited number of OS loaders. The OS installer 
>writes an NVRAM variable 
>that sets the   name of the 1st stage OS loader (EFI Application). 

I will try this way

Thanks
Henglong Fan
 

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