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Re: [dm-devel] Re: [PATCH] User-configurable HDIO_GETGEO for dm volumes



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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