On Sat, Sep 13, 2014 at 09:18:09PM +0400, Andrei Borzenkov wrote:
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В Fri, 12 Sep 2014 15:40:08 +0200 "Carlos E. R." <robin.listas@telefonica.net> пишет:
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On 2014-09-12 08:38, Larry Finger wrote:
I installed the 20140909 snapshot on my non-EFI system with a GPT disk. I kept my existing 13.1 root partition, and installed 13.2 on a spare partition. The installation was done from the Live KDE iso that had been placed on a USB drive with imagewriter.
I was not aware that a classic BIOS could boot a GPT disk - unless it works with a protective MBR and table and boots that.
Classic BIOS has zero knowledge about disk partitioning. It downloads the very first disk sector and jumps to it. So what is supported is determined entirely by content of the first sector.
Ideally yes. But we found a bunch of bioses did more than that, they will also check for active partition and do not allow to boot if that active partition is missing or has more than one set. I don't know the reason why the check is necessary from bios, it looks to me superfluous and unnecessary. Those flags are meant to hint the mbr boot code what partition is currently set as active and can be chainloaded. It's interpretation is totally up to the mbr and bios has no business to it. Regards, Michael
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