[bug #34353] GPT hybrid handover support for chainload

[Gregoire Sutre]

URL:
  <http://savannah.gnu.org/bugs/?34353>

                 Summary: GPT hybrid handover support for chainload
                 Project: GNU GRUB
            Submitted by: gsutre
            Submitted on: Wed 21 Sep 2011 12:46:40 PM CEST
                Category: Booting
                Severity: Ordinary
                Priority: 3 - Low
              Item Group: Feature Request
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: Grégoire Sutre
        Originator Email: address@hidden
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 
                 Release: Bazaar - trunk
         Reproducibility: None
         Planned Release: None

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Details:

When the top-level partition map is GPT, the chainload command
should pass an hybrid handover structure, as documented in
section A.4 of the ``hybrid MBR boot code annex'' [1].  Without
this support, the chainload command is useless for GPT since the
VBR boot code won't be able to locate its partition (even if it
supports GPT).

[1]
http://t13.org./documents/UploadedDocuments/docs2010/e09127r3-EDD-4_Hybrid_MBR_boot_code_annex.pdf





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