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    SubjectRe: BTRFS partition usage...
    David Miller wrote:
    > From: Chris Mason <chris.mason@oracle.com>
    > Date: Tue, 12 Feb 2008 09:08:59 -0500
    >
    >> I've had requests to move the super down to 64k to make room for
    >> bootloaders, which may not matter for sparc, but I don't really plan
    >> on different locations for different arches.
    >
    > The Sun disk label sits in the first 512 bytes and the boot loader
    > block sits in the second 512 bytes.
    >
    > I think leaving even more space is a good idea for several reasons.


    Yep. I chose 32K unused space in the prototype filesystem I wrote [1,
    2.4 era]. I'm pretty sure I got that number from some other filesystem,
    maybe even some NTFS incarnation. It's just good practice to avoid the
    first and last "chunks" of a partition, FSVO chunk.

    Jeff


    [1] http://kernel.org/pub/linux/kernel/people/jgarzik/ibu/


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