Hello, Daniel. You wrote 8 октября 2011 г., 0:13:54: >>>> GPT (and MBR) metadata placement is dictated from outside world, >>>> where is no GEOM and geom_label. They INTENDED to be used on DISKS. >>>> BIOSes should be able to find it :) >>> Certainly GPT and MBR must place an instance of the partition table >>> where the BIOS expects it, but there's no immediately obvious reason >>> why they must regard that instance as their GEOM metadata. GPT puts >>> a second copy in the provider's last block, and AFAICT it could just >>> as well use _that_ instance -- or even a differently-formatted block >>> that included the same data -- as the primary. MBR could do likewise. >> I have deja-vu, that I answered this. Please, read standard. GPT >> _must_ be placed twice -- at first and last sectors (really, more >> than one sectors). By standard. Secondary copy must be at end of >> disk. Period. > Then, "by standard" GPT cannot coexist with GLABEL. Such setup should be > disallowed, or at least big nasty message that you have just shoot > yourself in the leg should be output. (period) Ok, maybe adding check to geom_part, that it is used on rank-1 provider (whole disk) is not so bad idea. But it then raise question how to install FreeBSD on software mirror, what is useful. But could bite you sometimes... Hm... -- // Black Lion AKA Lev Serebryakov <lev_at_FreeBSD.org>Received on Sat Oct 08 2011 - 06:57:01 UTC
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