On 02/08/2012 03:59 PM, NeilBrown wrote: > On Wed, 08 Feb 2012 14:16:21 -0800 "H. Peter Anvin" <hpa@xxxxxxxxx> > wrote: > >> On 02/08/2012 01:01 AM, Stefan Priebe - Profihost AG wrote: >>> Hi, >>> >>> for now i'm still using grub 0.97 which can only understand >>> metadata 0.9. Are there any advantages of the 1.2 metadata >>> format? >>> >> >> There are a lot of advantages to the 1.x metadata format, but 1.0 >> is the easiest for bootloaders to deal with. 1.0, 1.1 and 1.2 is >> the same format, just with the superblock in different places. > > Hi Peter, wasn't it you who told be that 1.2 was best for boot > loaders, as 1.0 uses block 0 which the bootloader also wants, while > 1.2 uses a later block. That is why 1.2 is the default. > No, 1.1 uses block 0 which the bootloader wants. Bootloaders need no special enabling to support 0.9 or 1.0 RAID-1. 1.2 requires special enabling, but is workable. -hpa -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
