Re: Linux mdadm superblock question.

[John Robinson]

On 16/02/2010 03:18, david@xxxxxxx wrote:
> On Mon, 15 Feb 2010, H. Peter Anvin wrote:
>
> > On 02/15/2010 04:27 PM, Neil Brown wrote:
> >
> > There are three options:
> >
> > a) either don't boot from it (separate /boot);
> > b) use a bootloader which installs in the MBR and
> > hopefully-unpartitioned disk areas (e.g. Grub);
> > c) use a nonstandard custom MBR.
> >
> > Neither (b) or (c), of course, allow for chainloading from another OS
> > install and thus are bad for interoperability.
>
> I have had no problems with XFS partitions and lilo as the bootloader. 
> I've been doing this for a couple of years now without realizing that 
> there is supposed to be a problem.

There isn't, if you use partitions. It could (would) go wrong if you 
tried to put an XFS filesystem, or md RAID with a v1.1 superblock, on a 
whole disc without a partition table *and* you tried to put a bootloader 
on. I can't say it's ever occurred to me to do that, because I always 
assumed that whatever I put in a partition used all of it, and I 
couldn't expect to double-book the beginning of it and have it work.

Cheers,

John.
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/