GPT partitions missing, upgrading 7.4 to 8.3

[Nicolas Rachinsky]

* "Andrey V. Elsukov" <bu7cher at yandex.ru> [2012-09-03 09:02 +0400]:
> On 02.09.2012 19:47, Nicola Tiling wrote:
> > I'm trying to upgrade 7.4 to 8.3, but I fail.
> > 
> > On a third slice I have nine gpt partitions. Originally they were created under 6.2 with "gpt".
> > The upgrade from 6.4 to 7.4 runs without problems, but now from 7.4 to 8.3 the partitions are not
> > found. I can't see them under /dev and gpart list shows curious things, a fifth slice in the
> > third and a EBR scheme instead of GPT. I have load the kernel modules geom_part_gtp,
> > geom_part_mbr, geom_part_bsd. Is there a save way to install 8.3 or is it dead-end?
> 
> GEOM_PART_GPT cannot be nested.

Is there any technical reason for that? Would there be any problems if
the nesting check is removed?

7.X worked just fine with a gpt inside a slice or partition.

Nicolas
-- 
http://www.rachinsky.de/nicolas