On 11/25/07, Markus Bergkvist <markus.bergkvist@telia.com> wrote:
quoted text
> Hi,
> I have an image file of a Linux bootable CF-card. The image is created
> with 'dd if=/dev/sdc of=imagefile.bin' on a machine running Linux. When
> I try to write that image to another CF-card with 'dd if=imagefile.bin
> of=/dev/sd1c' from OpenBSD I get the following error after approximately
> 2 hours
>
> dd: /dev/sd1c: Invalid argument
> 2001893+0 records in
> 2001892+0 records out
> 1024968704 bytes transferred in 7009.618 secs (146223 bytes/sec)
>
> I've also tried with of=/dev/rsd1c with the same result.
> The image is writeable from the Linux machine so the image should be ok.
> The CF-cards (src and dst) are of same type and size.
> Any suggestions on what I'm doing wrong?

check disklabel to make sure the detected geometry is big enough to
hold the imagefile.  also, using rsd1 is the better device, and you
should specify a block size bigger than the default 512 to make it
faster.