From: wei6.xu@intel.com
To: "devel@edk2.groups.io" <devel@edk2.groups.io>
Cc: Laszlo Ersek <lersek@redhat.com>,
"Kinney, Michael D" <michael.d.kinney@intel.com>
Subject: [edk2-devel] Question about the Protective MBR in RedHat/Ubuntu
Date: Wed, 24 Apr 2019 11:36:19 +0000 [thread overview]
Message-ID: <59B8EAB3797CDB4091332F0685A110ED50D6B722@SHSMSX104.ccr.corp.intel.com> (raw)
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Hi,
I have a question about protective MBR. Thanks a lot for your time.
Why is the StartingCHS of protective MBR partition record set to 0x000100 in RedHat / Ubuntu? While UEFI spec defines it as 0x000200.
Problem Statement:
I met a problem when trying to use FatPei to fetch a file on the GPT partition of RedHat/Ubuntu in TCB.
FatPei has a check about Partition Record of protective MBR: StartingCHS should to 0x000200.
But I find the StartingCHS in both RedHat and Ubuntu is 0x000100, so that the check fails.
According to UEFI spec, StartingCHS should be 0x000200.
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next reply other threads:[~2019-04-24 11:36 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-24 11:36 wei6.xu [this message]
2019-04-24 16:07 ` [edk2-devel] Question about the Protective MBR in RedHat/Ubuntu Andrew Fish
2019-04-25 1:40 ` chao.b.zhang
2019-04-25 1:59 ` Andrew Fish
2019-04-24 18:11 ` Laszlo Ersek
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