Re: Does libparted suport Hybrid MBR

[rahul dev]

Ok. Thanks Petr. So, that means parted gives preference to gpt over mbr on a 
hybrid mbr table ?

thanks,
rahul

--- On Tue, 6/9/11, Petr Uzel <address@hidden> wrote:

> From: Petr Uzel <address@hidden>
> Subject: Re: Does libparted suport Hybrid MBR
> To: "rahul dev" <address@hidden>
> Cc: address@hidden
> Date: Tuesday, 6 September, 2011, 1:20 PM
> Hi,
> 
> On Tue, Sep 06, 2011 at 08:09:34AM +0530, rahul dev wrote:
> > Guys,
> > 
> >    Just want to know if there is support for
> hybrid MBR in libparted? 
> 
> No, 'vanilla' (lib)parted does not support writing hybrid
> MBRs. However,
> at least Ubuntu and openSUSE have patches to add some basic
> support
> for hybrid MBR.
> 
> >    How would libparted interpret a hybrid
> MBR partition table ?
> 
> Hybrid MBR is in no way standardized and so various tools
> create
> different hybrid MBRs for the same set of GPT partitions.
> If I create
> hybrid MBR using openSUSE's patched parted and then run
> 'vanilla'
> parted on it, it recognizes it as GPT without any problems.
> However,
> if I create new GPT partition with vanilla parted, it
> overwrites
> hybrid MBR and creates non-hybridized protective MBR
> instead.
> 
> For fine control over how the hybrid MBR is created, I
> suggest to use
> GPT fdisk tool:
> 
> http://www.rodsbooks.com/gdisk/index.html
> 
> BTW this is worth reading:
> 
> http://www.rodsbooks.com/gdisk/hybrid.html
> 
> HTH,
> 
> 
> Petr
> 
> --
> Petr Uzel
> IRC: ptr_uzl @ freenode
>