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2013 Feb 13
0
Re: [PATCH] xfs_mkfs: wipe old signatures from the device
..._mkfs: wipe old signatures from the device
>
> On Wed, Feb 13, 2013 at 07:27:53AM +1100, Dave Chinner wrote:
> > Isn''t 128k of zeroing enough to kill existing filesystem signatures?
>
> Really no.
>
> > If not how much is, and why can''t we just change WHACK_SIZE to
> > reflect the size that will kill those signatures that are further
> > offset into the device?
>
> btrfs: first superblock at 64KB, second at 64MB, third at 256GB.
We''ve been discussing this with Dave and others and it seems really
odd that blkid would detect fil...