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Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partitio

From: Alexander E. Patrakov
Subject: Re: [Bug-xorriso] Test Proposal for [bug #46716] Protective MBR partition is not marked as bootable
Date: Tue, 22 Dec 2015 01:51:11 +0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0

22.12.2015 01:22, Thomas Schmitt пишет:
Andrei Borzenkov wrote:
So it still looks like adding dummy bootable partition to MBR
is the least evil.

It would need patching of the xorriso output or a future release
of xorriso.

If you want such an option for grub-mkrescue then i am willing
to implement it. (-shadow_mbr_part ? --mbr-boot-dummy ?
Not easy to describe its nature and purpose. -alexanders_partition ?)

I propose --dummy-bootable-mbr-partition. I think it can be made non-overlapping if we waste a few sectors, but need to test.

Then, we'll need to define semantics for the case when another partition would be already bootable in the MBR. Move the bootable flag? Create two bootable partitions (which is invalid)? Ignore the switch? Warn? Leave undocumented? Well, I don't really care :)

Alexander E. Patrakov

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