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Re: GPT Question
From: |
Christian |
Subject: |
Re: GPT Question |
Date: |
Wed, 09 Nov 2011 23:18:40 +0100 |
On mer, 2011-11-09 at 00:16 +0100, Christian wrote:
> Hi,
>
> I created a GPT table on a file (1 MB), using parted 2.2.
> Looking at the hexdump seems that the CHS-start-sector of the GPT
> partition may not be correct. Those are MBR (64 byte) partitions:
>
> Status CHS Type CHS LBA start LBA sectors
> 00 000100 EE FEFFFF 01000000 FF070000
> 00 000000 00 000000 00000000 00000000
> 00 000000 00 000000 00000000 00000000
> 00 000000 00 000000 00000000 00000000
>
> CHS start bytes are HEAD: 00, SECTOR: 01 CYLINDER: 00.
>
> Using the formula:
>
> LBA = (CYL * NHEADS + HEAD) * NSECTORS + SECTOR - 1
>
> LBA = (0 * 4 + 0) * 32 + 1 - 1
>
> LBA = 0
>
> But the GPT header is at LBA 1 (as the LBA start field 01000000).
>
> This is an error or CHS values are ignored?
>
> Many thanks!
>
> Christian.
Parted 3.0 have this "error" too.
Christian.
- GPT Question, Christian, 2011/11/08
- Re: GPT Question,
Christian <=