Zpool on raw disk and weird GEOM complaint

[Marius Nünnerich]

On Mon, Jun 29, 2009 at 16:14, Patrick M. Hausen<hausen at punkt.de> wrote:
> Hi!
>
> On Mon, Jun 29, 2009 at 03:38:51PM +0200, Marius Nünnerich wrote:
>
>> I'm sorry, it should have said:
>> dd if=/dev/da0 count=4 | hd
>
> 00000000  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 000001b0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 ff  |................|
> 000001c0  ff ff ee ff ff ff 01 00  00 00 ff ff ff ff 00 00  |................|
> 000001d0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 000001f0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 55 aa  |..............U.|
> 00000200  45 46 49 20 50 41 52 54  00 00 01 00 5c 00 00 00  |EFI PART....\...|
> 00000210  2d e8 5e 91 00 00 00 00  01 00 00 00 00 00 00 00  |-.^.............|
> 00000220  ff ff 3f d1 01 00 00 00  22 00 00 00 00 00 00 00  |..?.....".......|
> 00000230  de ff 3f d1 01 00 00 00  47 b5 79 82 96 d5 dc 11  |..?.....G.y.....|
> 00000240  be 97 00 0a e4 85 78 5e  02 00 00 00 00 00 00 00  |......x^........|
> 00000250  80 00 00 00 80 00 00 00  3e 0b 98 53 00 00 00 00  |........>..S....|
> 00000260  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00000400  b6 7c 6e 51 cf 6e d6 11  8f f8 00 02 2d 09 71 2b  |.|nQ.n......-.q+|
> 00000410  16 b6 79 82 96 d5 dc 11  be 97 00 0a e4 85 78 5e  |..y...........x^|
> 00000420  22 00 00 00 00 00 00 00  de ff 3f d1 01 00 00 00  |".........?.....|
> 00000430  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00000490  26 b6 79 82 96 d5 dc 11  be 97 00 0a e4 85 78 5e  |&.y...........x^|
> 000004a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00000510  37 b6 79 82 96 d5 dc 11  be 97 00 0a e4 85 78 5e  |7.y...........x^|
> 00000520  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00000590  48 b6 79 82 96 d5 dc 11  be 97 00 0a e4 85 78 5e  |H.y...........x^|
> 000005a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00000610  59 b6 79 82 96 d5 dc 11  be 97 00 0a e4 85 78 5e  |Y.y...........x^|
> 00000620  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00000690  6a b6 79 82 96 d5 dc 11  be 97 00 0a e4 85 78 5e  |j.y...........x^|
> 000006a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00000710  7a b6 79 82 96 d5 dc 11  be 97 00 0a e4 85 78 5e  |z.y...........x^|
> 00000720  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
> *
> 00000790  8b b6 79 82 96 d5 dc 11  be 97 00 0a e4 85 78 5e  |..y...........x^|
> 000007a0  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|

OK, there is the GPT signature which reads "EFI PART" at offset 0x200.
What was on the disk before?
I think it should look different. There is a document from sun which
explains the ZFS ondisk format and and I don't remember it to look
like a MBR and GPT ;) Sorry, I don't have the time right now to dig
through it.