On Thursday 27 September 2007 20:44, Felix Miata wrote:
> On 2007/09/27 20:22 (GMT-0700) Randall R Schulz apparently typed:
> > Felix Miata wrote:
> >> Looking at https://bugzilla.novell.com/show_bug.cgi?id=328038#c3
> >> and the DD man page I figured to see a hex dump of the dmraid data
> >> I should be able to do:
> >>
> >> dd if=/dev/hda of=somefile.bin seek=156301440 count=1 bs=512
> >
> > Dd is just a fancy copy program. It does not format the data it
> > transfers.
>
> The desired sectors are beyond the last full cylinder on disk. Not
> being within any filesystem, ordinary file viewers wouldn't be able
> to find them even if part of a file.

That is nonsensical. If the data in question is "part of a file" then by 
definition it's within a file system.


> As dmraid data, I didn't expect 
> them to be within any file anyway. Formatting is a non-issue.

You asked for a "hex dump." That's data formatting.

Nonetheless, when using a raw device, such as /dev/hda, you are not 
subject to the boundaries of a file system or of the partioning of the 
device, only of its total capacity. If you use a partition, 
e.g., /dev/hda0, then you're only going to be able to see the contents 
within that partition, as it's defined in the drive's partition table.


RRS
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