FDT on x86 and for non-fdtbus devices.
Robert N. M. Watson
rwatson at FreeBSD.org
Thu Feb 14 17:08:29 UTC 2013
On 14 Feb 2013, at 17:00, Marcel Moolenaar wrote:
> I think it's a feature to instantiate GEOMs from the FDT.
> Creating a mirrored disk configuration when the disks are
> already in use cannot in general be done using tasting.
> The assumption that the last sector is free is invalid
> with GPT and it has created conformance problems for us
> already. Being able to construct the gmirror GEOM from the
> FDT eliminates the need to scribble meta-data on the disk
> and as such allows us to mirror 2 GPT disks at the disk
> level without instantaneously becoming non-conformant.
Especially in our case, where the first block of the flash is definitely reserved for things other than partition table data structures. :-)
Robert
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