[dm-devel] Re: [PATCH] User-configurable HDIO_GETGEO for dm volumes
Darrick J. Wong
djwong at us.ibm.com
Thu Feb 23 18:16:24 UTC 2006
On Thu, 2006-02-23 at 13:56 +0000, Alasdair G Kergon wrote:
> My copy of the sd(4) man page says of that ioctl:
>
> The information returned in the parameter is the disk
> geometry of the drive as understood by DOS! This geometry is not
> the physical geometry of the drive. It is used when constructing the
> drive's partition table, however, and is needed for convenient
> operation of fdisk(1), efdisk(1), and lilo(1). If the geometry
> information is not available, zero will be returned for all of the
> parameters.
>
> Is there a preferred alternative specification?
Hm... in light of that, I'll acquiesce that 0/0/0 is fine by me, and no
other behavior is necessary.
--D
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