RE: [Xen-devel] sfdisk -g support in DomU

[Adam Heath <doogie@xxxxxxxxxxxxx>]

On Wed, 16 Nov 2005, Ian Pratt wrote:

> > Back in January there was a mail thread on this subject (
> > http://lists.xensource.com/archives/html/xen-devel/2005-01/msg
> > 00659.html
> > ), however I see that blkfront still does not include ioctl
> > support for disk geometry. So, any application that uses
> > "sfdisk -g" to get the geometry of a partition, or disk, will
> > fail when run in DomU.
> >
> > Is this a deliberate omission?
>
> Most people tend to import block devices as partitions rather than whole
> disks, so often there isn't a 'whole disk' device to interogate (though
> I guess a partition table for it could be faked out if anyone really
> cared). Importing partitions rather than whole disks makes resizing of
> indidual partitions easier.

We import whole disks; nfsroot for /(not really an import, but listed for
completeness here), hdb for swap, hdc for /tmp.

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