[dm-devel] help : device-mapper ioctl cmd 9 failed: Invalid argument

[Alasdair G Kergon]

On Mon, Jul 21, 2003 at 06:14:10PM +0530, kiran dalvi wrote:
>   My machine is Redhat Linux - 8.0,  kernel level 2.4.21 with properly 
> applied patches for DM.
>   I also have device mapper tools installed properly on my machine.

Both the latest versions from the sistina ftp site presumably?
 
>   contents of dmsetup file
>   0       200781  linear  /dev/hda7       0
>   200781  401562  linear  /dev/hdb8       0
    ^       ^
    |Start  |Length   [all in units of sectors of 512 bytes]

So hdb8 is exactly twice the size of hda7
and the number of sectors on hda7 is an odd number.

>   I am not able to get documentation for how to setup DM , if any one knows 
> where to get that please let

'man dmsetup' should cover enough for this.

Alasdair
-- 
agk at uk.sistina.com